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1. Lithium hydrogen carbonate decomposes by heating as shown in the bal 2 LiHCO3 (s)→ Li₂CO3 (s) + CO₂ (g) + H₂O (g) a) If 0.24 mol of LiHCO3 is decomposed completely, will be formed. b) If 136 g of LiHCO3 are decomposed completely,. formed. -go c) What is the combined mass of the CO₂ and H₂O in (b)? d) Calculate the mass loss when 4.56 g of LiHCO3 are decomposed. 17

1. Lithium hydrogen carbonate decomposes by heating as shown in the bal 2 LiHCO3 (s)→ Li₂CO3 (s) + CO₂ (g) + H₂O (g) a) If 0.24 mol of LiHCO3 is decomposed completely, will be formed. b) If 136 g of LiHCO3 are decomposed completely,. formed. -go c) What is the combined mass of the CO₂ and H₂O in (b)? d) Calculate the mass loss when 4.56 g of LiHCO3 are decomposed. 17

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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4 Prelaboratory Questions Name Laboratory Section 1. Lithium hydrogen carbonate decomposes by heating as shown in the balanced equation: 2 LIHCO3 (s) → Li₂CO3 (s) + CO₂ (g) + H₂O (g) mol of Li₂CO3 a) If 0.24 mol of LiHCO3 is decomposed completely, will be formed. g of Li₂CO3 will be b) If 136 g of LiHCO3 are decomposed completely, formed. c) What is the combined mass of the CO2 and H₂O in (b)? d) Calculate the mass loss when 4.56 g of LiHCO3 are decomposed. (continued on next page) 39
Transcribed Image Text:4 Prelaboratory Questions Name Laboratory Section 1. Lithium hydrogen carbonate decomposes by heating as shown in the balanced equation: 2 LIHCO3 (s) → Li₂CO3 (s) + CO₂ (g) + H₂O (g) mol of Li₂CO3 a) If 0.24 mol of LiHCO3 is decomposed completely, will be formed. g of Li₂CO3 will be b) If 136 g of LiHCO3 are decomposed completely, formed. c) What is the combined mass of the CO2 and H₂O in (b)? d) Calculate the mass loss when 4.56 g of LiHCO3 are decomposed. (continued on next page) 39
2. a) A mixture of LiHCO3 and sand weighing 9.20 g is heated. After cooling, the residue composed of Li₂CO3 and sand weighs 6.80 g. Assuming that the sand in the sample is unaf- fected by the heat, calculate the mass loss due to the escape of gaseous CO₂ and H₂O. b) Calculate the mass of LiHCO3 in the original mixture. urgeouo viotetodols noites voterode.J c) Calculate the mass of sand in the mixture. noitsups boonsled odi ni mw gnosed wi camrosel (2) OH+ (3 00 id to lom alossiamos beannac d) Calculate the mass percent of LiHCO3 in the mixture. ad lliw 004202 e) What must be the mass percent of sand in the mixture? Covertimen
Transcribed Image Text:2. a) A mixture of LiHCO3 and sand weighing 9.20 g is heated. After cooling, the residue composed of Li₂CO3 and sand weighs 6.80 g. Assuming that the sand in the sample is unaf- fected by the heat, calculate the mass loss due to the escape of gaseous CO₂ and H₂O. b) Calculate the mass of LiHCO3 in the original mixture. urgeouo viotetodols noites voterode.J c) Calculate the mass of sand in the mixture. noitsups boonsled odi ni mw gnosed wi camrosel (2) OH+ (3 00 id to lom alossiamos beannac d) Calculate the mass percent of LiHCO3 in the mixture. ad lliw 004202 e) What must be the mass percent of sand in the mixture? Covertimen
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