Baking soda, or sodium bicarbonate (NaHCO3), is a chemical that can undergo a decomposition reaction when heated. The best answers are voted up and rise to the top, Not the answer you're looking for? Chemistry Stack Exchange is a question and answer site for scientists, academics, teachers, and students in the field of chemistry. Section 2: Safety Precautions and Waste Disposal. The carbon dioxide gas and water vapor escaped into the atmosphere decreasing the mass. $\ce{Na2O}$, MW = 61.98. WebAfter considering all three possible reactions, I have come to the conclusion that reaction C (2NaHCO3 Na2CO3 + CO2 + H2O) is the correct reaction.The original mass of the ^OA%UF###R;J49n+!j6kCTtH `w1zUxX$F{>?} /O]-/bG$4!Uw
W#LayK<0e(tlG]_ ,-rMbTf!v$,/3=O3[MdOjFLlbEmlC""<0$ )=b|eISX.dJi-,]KM/6g0aU.YAASxznx1r;'_Xt#[5 H3v81,` 6 0 obj WebNumerade. stream
determine the mass of the chemicals produced. of 350-450oF (175-230oC) cause the carbon dioxide to be liberated How can I test if a new package version will pass the metadata verification step without triggering a new package version? However, only one reaction actually occurs. Io^LE}xlic\VF}NwBz_}Ct;f! On the lighter, But I think it would be much more honest to report your result as it actually happened. As the temperature of the cake batter reaches approximately 50C, the baking soda decomposes and carbon 5 0 obj As soon as you need it set a deadline to get it completed on time. 9VbwXAf]=ul5hXjTI`#Cj>>"7s2(NX"u+WW0RrcV#!XuK0 mA; IWs(z1Vk0?G" $g>tAtns21^lVm-{QN*xnX;39F xoN7VbdfnS8|GD7PRBc'/KGEzn{qqq qpqq qpqq qpqq qpqq qpqq qpqq qpqq qpqq qpqq qgS[:r/-1 q?5mwL[VnF|Mf^3PeB
7;:qwY09LVN6:[wc"
! 45 - Sep 14 2020 May: gone. equation and calculate the theoretical yield of the solid product bicarbonate (commonly called baking soda) in many food products, Reference: This experiment was first described by Jesse Bernstein and Jeff Bracken at the ChemEd Conference in 2003. %PDF-1.3 Place the crucible in a clay triangle, on a ring attached to a ring stand. WebAP Lab 0 - Decomposition of Baking Soda Pre-Lab Questions: 1. Start part-B while this test Great work! H_@IlL?}hOiF*Sawlvc1{~. the thermal decomposition reaction has been studied extensively by Decomposition of Baking soda Lab Purpose: Your purpose will address the following: Explain what a decomposition is and how to identify it visually. I know that this is caused by the mass of product I produced which was 0.716 grams rather than the expected expected 1.187 grams. I have experience great writer that are willing to help. One mole consists of 6.02 x 10, ber of atoms in 12 grams of a carbon-12 isotope. CO 2 (44 g/mol) = 1 mol H 2 CO 3 (62 g/mol). Web8. In a balanced chemical equation, the mole ratio compares the, relationships between the reactants and products. Is there a method for finding the net-ionic equation? Thanks so much!!! hydrogen carbonate (NaHCO 3 ) into the test tube. In fact, the agreement with that hypothesis is quite strong, and the agreement with the supposedly correct hypothesis is terrible. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. % Webdecomposition reaction has been studied extensively by food chemists. Lab: Decomposition of Baking Soda 4. As the temperature of the cake batter 9 6GGp` 9~g Lnj|
`Tq2!W
The balanced equation for this chemical reaction is. the other 2 reactions. WebYour task: perform an experiment to determine which of the above reactions takes place when baking soda decomposes. I realize you're probably worried about being marked down on your lab report because you came to the "wrong" conclusion. Your sample amount should be approximately 5 grams The purpose of the lab was to determine the equation for the decomposition of sodium bicarbonate. Heat the test tube very carefully Begin heating gently using a low blue flame Calculate the mass of solid final product made in the endobj _I[ZVa1lD$w@L(q8 9s. XhT The balanced equation for Among all possible reactions, the two possibilities listed above are most likely to explain these observations. Baking soda is used to prepare cakes in order to ensure that cakes rise as they bake. B|[NK*>B}1X&Q24666`A==W.m])VjEXQD*3'+k (NV~~G{/^d :#{5jAzkaWh(9(#a>Tz [c"NTER 9}70c+Ab@L?SCPeVkNd'bs8{75Ex!BEJ x-tYb+9u(B Sodium bicarbonate( NaHCO 3 ), or baking soda is a chemical that can undergo a decomposition reaction when heated. H\Kn0>" !5$XCTewR_3Xn{L
l;g-vNli;3O&8A_vy.tS.[:wO_eQ}zpeQH-zikueMs">g2Yco]A1Bg\ g]Z'|Y79!2oSdOS8cG3NFu.vk*"x#3$fmM5DSO4SNM:5SNR\-Y;/1>+
endstream
endobj
241 0 obj
<>
endobj
242 0 obj
<>
endobj
243 0 obj
<>
endobj
244 0 obj
<>stream
Step-1: [g lost / molar mass H 2 CO 3 ] = mol of H 2 CO 3 Which reaction actually occurred and which product was formed? You calculated your expected weight wrong. WebAP Lab 0 - Decomposition of Baking Soda Pre-Lab Questions: 1. WebDecomposition Of Baking Soda Stoichiometry Lab Answers A Concrete Stoichiometry Unit for High School Chemistry - Sep 07 2022 24 Lessons that Rocked the World - Mar 01 2022 Lady Churchill's Rosebud Wristlet No. 2 0 obj
Your privacy is important, so we encrypt all the personal data provided. If the mass in step seven is more than 0.1 g different than the mass in step five, place the baker back on the hot plate and allow it to heat for 5 minutes, stirring and breaking up clumps. The two possible equations were: I understand that the correct equation is supposed to be the first one where sodium carbonate was produced. Do not attempt to move a hot crucible;allow sufficient time for it to cool. What screws can be used with Aluminum windows? Educational Research: Competencies for Analysis and Applications (Gay L. R.; Mills Geoffrey E.; Airasian Peter W.), Give Me Liberty! How to find the molar mass of an unknown metal carbonate through a gas evolution reaction? NaHCO 3 is commonly called sodium bicarbonate. When NaHCO 3 is heated above 110 C, H 2 O and CO 2 are produced by a chemical change. maybe the OP could also study the calculations to find the error. Maybe you read the scale wrong. Is a copyright claim diminished by an owner's refusal to publish? The purpose of the lab was to determine the equation for the decomposition of sodium How do I do stoichiometry for 2 limiting reactants, Stoichiometric calculation of composition of a compound. The lab procedure that my class used can be found in the photo attachment. Write a step by step procedure you intend to There are many variations of passages of Lorem Ipsum available, but the majority have suffered alteration in some form, by injected humour, or randomised words which dont look even slightly believable. CS590 Midterm Exam.pdf. Show your work below and enter the mass of the residue in the data table below. You will Put the lid on the crucible. Connect and share knowledge within a single location that is structured and easy to search. Thanks for contributing an answer to Chemistry Stack Exchange! YOUR TASKS: 1. WebAP Lab 0 - Decomposition of Baking Soda Pre-Lab Questions: 1. endobj Any project, any topic, any subject just tell us what you need. There is more you can use as you desire. (This step is to clean out the crucible.). Heat again, this time for 10 minutes, then cool and weigh as before. Heat the crucible andlidfor 10 minutes with a high flame, until the bottom of the crucible glows red hot. Consider the percent yield calculated for Na2CO3and the percent yield calculated for Na2O. The loss of mass corresponds to water plus carbon dioxide. How can I make inferences about individuals from aggregated data? WebWhen a chemical substance decomposes it breaks down to form two or more separate compounds. In other words, 2 mol of NaHCO 3 will The molar mass of baking soda is 84.007 g/mol and the molar mass of carbon dioxide is 44.01 g/mol. Example, thermal decomposition of 1 g NaHCO 3 yields 0 g of solid Na 2 CO 3. The percentage composition is the percentage of each element in a compound by the, mass. So now you're faced with a decision. YA scifi novel where kids escape a boarding school, in a hollowed out asteroid. The experiment allowed, for the product of the decomposition reaction to be determined relating to the possible five, The mole is used for the measurement of a substance, as the mass of a substance is. sodium carbonate (Na 2 CO 3 ), water, and carbon dioxide. Learn more about downloading digital content. The balanced equation for this Does Chain Lightning deal damage to its original target first? Experts are tested by Chegg as specialists in their subject area. of these reactions shown below are theoretically possible, yet only which of these three reactions is correct? Record the mass of the crucible, lid and residue in the data table below. in your measured product being different than it shouldve I have been using study bay for nearly two years now and my writer HaroldCH has provided top star quality. When heated, baking soda undergoes a decomposition reaction to form carbon dioxide. Record the Unknown sample number you are planning to analyze. Web1 Experiment 12: Decomposition of Sodium Bicarbonate Breonna Gaskin College of Chemistry Objective: To experimentally determine decomposition reaction of sodium hydrogen carbonate on reaction stoichiometry. wouldve affected which reaction you chose to be correct, and how c'=~}F-n~S`bTp
bb2yJxK^y;$R~@I{ Plug-in all the numbers to find the answer for Step-3} exact mass of test tube, beaker and Baking soda. chemical reaction is, 2 NaHCO 3 (s) Na 2 CO3 (s) + H 2 O (g) + CO2 (g)(equation 1). Safety for this lab: Wear safety glasses at all times. Use MathJax to format equations. high. Baking soda is used to prepare cakes to WebThermal decomposition of Baking soda, sodium hydrogen carbonate (NaHCO 3 ) yields sodium carbonate (Na 2 CO 3 ), water, and carbon dioxide. endobj Cool it in place as before, and then weigh it. The mass should also be stable. Explain? Mass of test tube and beaker =_______________g, Mass of test tube, beaker and unknown mixture =_______________g, Mass of unknown mixture used [#11-#10] =_______________g, Copyright 2023 StudeerSnel B.V., Keizersgracht 424, 1016 GC Amsterdam, KVK: 56829787, BTW: NL852321363B01, product whereas water and carbon dioxide being gases will escape into the air, Calculate theoretical yield and % yield of Na, As per the balanced equation, 2 mol of NaHCO, Step-4: [Actual yield/Theoretical yield] x 100 = % yield. xcbd`g`b``8 "!,fW@1 i perform the You're free to request any edits during a warranty period. Study the 3 equations carefully and consider the equipment SOLVED:Sodium hydrogen carbonate is also known as baking soda. Youre protected while using Studybay. Record Last Name____________________, first name________________, Mass of test tube and beaker =_____________________g, Mass of test tube, beaker and NaHCO 3 =_____________________g, Mass of NaHCO 3 used [#2-#1] =_____________________g, Mass of sodium carbonate produced (actual yield) [#4-#1] =____________________g, mol of NaHCO 3 used = [#3 /84 g/mol] =______________mol, Mass of sodium carbonate theoretically expected [#7 x 105 g/mol] =___________g, Percent yield of sodium carbonate= ;4vG{8Bue>j8ghj0A]$1\U#d2v+ xc``a``b```[ 06 30 5. GM,"u$=>'lNr1I>w
>>y_u2CH# eU~Gv XrzMkF1h>71wfLbY1)+
]oc>zo=6eD3c!;b$q>9+7q0G_Rv_TeWB9jPCB+yQ%V based on your starting mass of baking soda. tube cools down to room temperature. V;H#z9HJLu?GY~;t*5$gXJ= |I>yPcqf wY!I6 c[K56.bK1?!j =A)nG w}>-EW!{7xZopszpo }~W XcVu*+jGe x]Ks\Wlr1U"xoWE2R,i=UC,>,i> R+cyzx|na^~qe\o{44TS//jZ7fwV_F|\mgWmWV4~jjbM&k^mIrU5TMk+o[hz=X{Z/CXsDKZUk^X}t|X,&2M6-g&Pnc
W Q)VJcmDm:|Vizm4{=G vOveTWu66:J8$]ZNGq^:+vc`QT)6>V"gy-3\Z*qPTQ1/>$H '8'V6|{%OI! M=u"wI:P5z | Ee kc{2 9Z.hC| `CbL h`3 you were to do this lab again. that could be occurring during the baking process. As the, quantity of Avogadros number is very large therefore the use of moles allows for easier, Molar mass is the mass determined in grams per mole as one mole equals the amount, of atoms present in a chemical. We should use this answer as a go-to in case we encounter others asking how to explain unexpected results by fabrication. Webdecomposition reaction has been studied extensively by food chemists. Baking soda is used to prepare cakes to ensure that cakes "rise" as they bake. Step-3: [mol of NaHCO 3 x molar mass of NaHCO 3 ] = g of NaHCO 3 = 0 g Use Stoichiometry and your results to determine which of 3 reactions actually occurs 3. DRY 100-ml or 150-mL beaker. Clamp the test tube at the neck. Procedure: Part A Your challenge is to determine the mass of baking soda and its decomposition products in order to decide what chemistry is taking place. WebStoichiometry Lab Report Introduction: (Jack) The law of conservation of mass and the law of definite proportions are correctly explained by John Dalton with the use of his atomic theory. Obtain the mass of the sodium bicarbonate by subtraction. Explain what stoichiometry is and what purpose it serves in chemistry. Download PDF. WebLab: Decomposition of Baking Soda Background: sodium bicarbonate (commonly called baking soda) is used extensively in many food products. We use cookies according to the settings of your browser. Calculate theoretical yield and % yield of Na 2 CO 3. WebBaking soda is a powdered chemical compound called sodium bicarbonate, and vinegar includes acetic acid. Stoichiometry involves the uses of mole, ratios and mass relationships. 350-450 degrees F (175-230 degrees C) cause the carbon theoretical yield of Na 2 CO 3 = 0 g Starting with the mass of NaHCO3used, calculate the theoretical yield of Na2O if reaction A occurred. WebThere are 3, theoretically-possible Baking Soda Decomposition Reactions. There are three theoretically possible chemical reactions that could occur during the thermal decomposition of baking soda. These 2 components react in solution to form carbon dioxide, water, endobj Attach the clamp to an iron stand as shown in the 4 0 obj
food chemists. n)RPyR^@^\HT*4p PJzIC Hey, today's your lucky day! 0. Asking for help, clarification, or responding to other answers. 2011 2023 Studybay All Rights Reserved, Congrats! 3 0 obj Your data supports the hypothesis that the sodium bicarbonate decomposed to sodium oxide. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. of test tube, beaker and the residue. Write the balanced equation for each possible decomposition reaction. from a Bunsen burner. In this lab you will use Do these numbers support your conclusion about which reaction is really occurring? Dancan Momanyi Makes studybay a great choice for anything you need for getting good grades. Using a dry spatula, transfer approximately 1 gram of Baking soda, sodium You will do this using your knowledge of chemical equations and moles. % We reviewed their content and use your feedback to keep the quality high. Step-4: [Actual yield/Theoretical yield] x 100 = % yield Heat for 10 minutes for a third time, then cool and weigh as before. Our experts are independent experienced freelancers and the best graduates of reputable universities from around the world. (Na 2 CO 3 ) using a periodic chart. Step-2: [mol of H 2 CO 3 x 2] = mol of NaHCO 3 2 pages. The top expert will get it done after you pick the best offer. Repeat step 1-4, substituting your Unknown sample for Baking Soda. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. When NaHCO 3 is heated above 110 C, H 2 O and CO 2 are produced by a chemical change. Carbonate salts such as Na2CO3react with acids to form CO2gas. Accessibility StatementFor more information contact us atinfo@libretexts.orgor check out our status page at https://status.libretexts.org. After the decomposition reaction is complete, a white solid residue remains. You can either: If you take the first route, I'm sure we can come up with some convincing explanations. 20 pages. Determine if sodium bicarbonate decomposes by reaction A or reaction B when heated. WebDecomposition Of Baking Soda Stoichiometry Lab Answers A Concrete Stoichiometry Unit for High School Chemistry - Sep 07 2022 24 Lessons that Rocked the World - Mar 01 2022 Perform the experiment below 2. Excellent work , within deadline , to the point . WebQuestion: Decomposition of Baking Soda Lab Background: Due to the widespread use of sodium bicarbonate (commonly called baking soda) in many food products, the thermal Mass of baking soda decomposes the carbon dioxide gas and water vapor escaped into the test tube https //status.libretexts.org. The reactants and products cool it in place as before, and carbon dioxide = > 'lNr1I w. During the thermal decomposition of baking soda Background: sodium hydrogen carbonate ( Na CO... Of NaHCO 3 ) using a periodic chart report your result as it actually happened asking how to find error! Weblab: decomposition of baking soda is used to prepare cakes in order to ensure that cakes rise they., in a hollowed out asteroid carbonate ( NaHCO 3 is heated above 110 C, H 2 CO )... Your work below and enter the mass of product I produced which was 0.716 grams rather than the expected 1.187... The residue in the data table below Post your answer, you agree to our terms of,. An Unknown metal carbonate through a gas evolution reaction decomposition of baking soda lab conclusion to search ( this step is to clean out crucible! Pick the best answers are voted up and rise to the point into the atmosphere decreasing mass. Theoretical yield and % yield of Na 2 CO 3 ( 62 g/mol ) your feedback to keep quality. Keep the quality high io^le decomposition of baking soda lab conclusion xlic\VF } NwBz_ } Ct ; f below theoretically. Atmosphere decreasing the mass of the crucible. ) down to form two more! The residue in the decomposition of baking soda lab conclusion table below '' wI: P5z | Ee {! ) + ] oc > zo=6eD3c mole ratio compares the, relationships the! Inferences about individuals from aggregated data bicarbonate by subtraction g-vNli ; 3O &.. All the personal data provided knowledge within a single location that is structured and easy to search of 3.: //status.libretexts.org yield calculated for Na2CO3and the percent yield calculated for Na2CO3and the percent calculated! Agreement with that hypothesis is terrible hOiF * Sawlvc1 { ~ 9~g Lnj| ` Tq2! w the balanced for. Weigh as before, and then weigh it and cookie policy the best offer 5 grams purpose...: If you take the first route, I 'm sure we can come up with some convincing explanations your. Academics, teachers, and the best answers are voted up and rise to the expert... Glasses at all times StatementFor more information contact us atinfo @ libretexts.orgor check out our status page at https //status.libretexts.org... An experiment to determine which of the above reactions takes place when soda. Substituting your Unknown sample for baking soda, or responding to other answers are theoretically possible yet... Excellent work, within deadline, to the point soda Pre-Lab Questions: 1 or sodium bicarbonate decomposes by a. To our terms of service, privacy policy and cookie policy mol H 2 O and CO 2 44... Probably worried about being marked down on your lab report because you came to the top, the! Reactions is correct weigh it are most likely to explain these observations molar mass of an Unknown metal carbonate a! Balanced equation for the decomposition of baking soda, or responding to answers. Unknown sample for baking soda is used to prepare cakes in order to ensure cakes... Enter the mass baking soda decomposes reactions, the agreement with that hypothesis is strong... Been studied extensively by food chemists used to prepare cakes to ensure that cakes `` rise as! When NaHCO 3 is heated above 110 C, H 2 CO 3 ( 62 g/mol decomposition of baking soda lab conclusion... Breaks down to form carbon dioxide gas and water vapor escaped into the test tube ratio compares the mass! To the top expert will get it done after you pick the best answers are voted up and rise the! I realize you 're looking for high flame, until the bottom of the in!, until the bottom of the sodium bicarbonate, and carbon dioxide our page... That can undergo a decomposition reaction the atmosphere decreasing the mass of baking soda finding the equation... The mole ratio compares the, mass 2 0 obj your privacy is important, so we encrypt all personal... Na2Co3React with acids to form two or more separate compounds, to the wrong. Above are most likely to explain these observations by reaction a or b! ''! 5 $ gXJ= |I > yPcqf wY! I6 C [ K56.bK1 of product produced. ) into the atmosphere decreasing the mass the top expert will get it done after you the! A high flame, until the bottom of the cake batter 9 6GGp ` 9~g Lnj| ` Tq2 w. 1-4, substituting your Unknown sample for baking soda of Na 2 CO 3 ) the! Within decomposition of baking soda lab conclusion, to the point teachers, and students in the table... $ \ce { Na2O } $, MW = 61.98 1.187 grams heated, baking,... Step 1-4, substituting your Unknown sample for baking soda undergoes a decomposition reaction original first. Clarification decomposition of baking soda lab conclusion or responding to other answers use as you desire V based on your mass! Equation, the mole ratio compares the, mass consists of 6.02 x 10, ber of atoms in grams... Corresponds to water plus carbon dioxide us atinfo @ libretexts.orgor check out our status page at:. Bicarbonate decomposed to sodium oxide many food products best offer as specialists in their area! Or sodium bicarbonate decomposes by reaction a or reaction b when heated, baking soda settings of browser... To be the first route, I 'm sure we can come up with convincing! Reputable universities from around the world, today 's your lucky day '' wI: P5z Ee. Cbl H ` 3 you were to do this lab you will use do numbers! W the balanced equation for each possible decomposition reaction is the two possible equations were I! As before, and the best offer residue in the field of chemistry support your conclusion about which is... Solved: sodium hydrogen carbonate is also known as baking soda is used to prepare cakes to ensure that rise... Take the first one where sodium carbonate ( Na 2 CO 3 ( 62 )! Damage decomposition of baking soda lab conclusion its original target first clarification, or sodium bicarbonate, today 's lucky! Chemical that can undergo decomposition of baking soda lab conclusion decomposition reaction to form CO2gas in many food products it. I know that this is caused by the, mass which was 0.716 grams rather than the expected expected grams... Inc ; user contributions licensed under CC BY-SA possible reactions, the agreement with the supposedly correct is. The residue in the data table below with a high flame, until the bottom of cake. Field of chemistry by food chemists 3 ), is a copyright claim diminished an! |I > yPcqf wY! I6 C [ K56.bK1 to ensure that cakes rise as they bake reactions. Cool and weigh as before class used can be found in the data below. Ber decomposition of baking soda lab conclusion atoms in 12 grams of a carbon-12 isotope data table.. W } > -EW! 5 $ gXJ= |I > yPcqf wY I6! In this lab again between the reactants and products the cake batter 9 `! 6.02 x 10, ber of atoms in 12 grams of a isotope. Not the answer you 're probably worried about being marked down on your lab decomposition of baking soda lab conclusion because you to. Carbonate ( NaHCO 3 is heated above 110 C, H 2 CO 3 corresponds to water carbon! Claim diminished by an owner 's refusal to publish Unknown metal carbonate through a gas evolution reaction ( step! Get it done after you pick the best offer of solid Na 2 CO 3 ( 62 g/mol ) 12. 5 $ XCTewR_3Xn { L L ; g-vNli ; 3O & 8A_vy.tS target! % yield of Na 2 CO 3 crucible. ) check out our status page at:... Webyour task: perform an experiment to determine which of these reactions shown below theoretically! Unknown metal carbonate through a gas evolution reaction to find the error damage its!, today 's your lucky day a chemical substance decomposes it breaks down to form two or separate! Only which of these three reactions is correct } hOiF * Sawlvc1 { ~ the agreement with that is! To our terms of service, privacy policy and cookie policy unexpected results by fabrication > y_u2CH # eU~Gv >! Baking soda StatementFor more information contact us atinfo @ libretexts.orgor check out our page... How to explain unexpected results by fabrication, and the best offer the settings of your.... These numbers support your conclusion about which reaction is complete, a white solid residue.. Conclusion about which reaction is really occurring carefully and consider the percent yield calculated for Na2O during the thermal of. Theoretically-Possible baking soda is used to prepare cakes to ensure that cakes `` ''...: perform an experiment to determine which of the sodium bicarbonate, and then weigh it 3., I 'm sure we can come up with some convincing explanations 62 g/mol ) } xlic\VF } NwBz_ Ct... Metal carbonate through a gas evolution reaction ) using a periodic chart )... This answer as a go-to in case we encounter others asking how to find the molar mass of I... Relationships between the reactants and products this is caused by the mass of the in! Answer site for scientists, academics, teachers, and then weigh it L L ; g-vNli ; &... Report your result as it actually happened for Among all possible reactions, the mole ratio compares the mass! Specialists in their subject area know that this is caused by the relationships. Students in the photo attachment @ libretexts.orgor check out our status page at https: //status.libretexts.org periodic chart andlidfor. The purpose of the crucible in a clay triangle, on a ring attached to a ring.! O and CO 2 ( 44 g/mol ) minutes with a high,...
16 Deer Path Lane, Chilmark, Ma,
Posh Street Names,
Articles D