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Predict how many moles of CaO he should have ended up with, using the following steps. Given that your friend started with 5.0 g of CaCO3 (molar mass = 100 g/mol), Calculate the number of moles in his 5.0 g starting CaCO3 sample, then use your answer to convert from moles of CaCO3 to moles of CaO he should have produced.

Predict how many moles of CaO he should have ended up with, using the following steps. Given that your friend started with 5.0 g of CaCO3 (molar mass = 100 g/mol), Calculate the number of moles in his 5.0 g starting CaCO3 sample, then use your answer to convert from moles of CaCO3 to moles of CaO he should have produced.

World of Chemistry, 3rd edition
World of Chemistry, 3rd edition
3rd Edition
ISBN:9781133109655
Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Chapter9: Chemical Quantities
Section: Chapter Questions
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Predict how many moles of CaO he should have ended up with, using the following steps. Given that your friend started with 5.0 g of CaCO3 (molar mass = 100 g/mol), Calculate the number of moles in his 5.0 g starting CaCO3 sample, then use your answer to convert from moles of CaCO3 to moles of CaO he should have produced.
Read the passage and use the equation to answer the rest of the questions. The molecule Caco, is what makes up eggshells, and it can decompose (break down) when heated strongly. This decomposition reaction is given by the equation: Caco,(s) - CaO(s) + CO,(g) Your friend argues that the chemical equation doens't follow the law of conservation of mass. He says, "Moles are not conserved since 1 mole of reactants produced 2 moles of product. This means the mass is higher in the end." You think he's wrong, and want to explain and do an experiment to prove it.
Transcribed Image Text:Read the passage and use the equation to answer the rest of the questions. The molecule Caco, is what makes up eggshells, and it can decompose (break down) when heated strongly. This decomposition reaction is given by the equation: Caco,(s) - CaO(s) + CO,(g) Your friend argues that the chemical equation doens't follow the law of conservation of mass. He says, "Moles are not conserved since 1 mole of reactants produced 2 moles of product. This means the mass is higher in the end." You think he's wrong, and want to explain and do an experiment to prove it.
BONUS! Predict how many moles of CaO he should have ended up with, using the following steps. Given that your friend started with 5.0 g of CaCO, (molar mass = 100 g/mol), (1) Calculate the number of moles in his 5.0 g starting CaCO, sample, then use your answer to (2) Convert from moles of CaCO, to moles of CaO he should have produced.
Transcribed Image Text:BONUS! Predict how many moles of CaO he should have ended up with, using the following steps. Given that your friend started with 5.0 g of CaCO, (molar mass = 100 g/mol), (1) Calculate the number of moles in his 5.0 g starting CaCO, sample, then use your answer to (2) Convert from moles of CaCO, to moles of CaO he should have produced.
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