1. Given the decomposition reaction: 2 KCIO, 2 KCLe + 30 a. What is the mole mole ratio of KCIO, to O,? b. What is the molar mass of KCIO,? C. How many moles of KCIO, are needed to produce 26.8 moles of O,?
1. Given the decomposition reaction: 2 KCIO, 2 KCLe + 30 a. What is the mole mole ratio of KCIO, to O,? b. What is the molar mass of KCIO,? C. How many moles of KCIO, are needed to produce 26.8 moles of O,?
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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Answer the following problems. Show your complete solutions.
Transcribed Image Text:Answer the following problems. Show your complete solutions.
1. Given the decomposition reaction: 2 KCIO, a 2 KCIu +30u
a. What is the mole-mole ratio of KCIO, to 0,?
b. What is the molar mass of KCIO,?
c. How many moles of KCIO, are needed to produce 26.8 moles of 0,?
d. How many grams of KCI are produced from an initial mass of 368.5 g KCIO,?
2. Silver metal reacts with sulfur to form silver sulfide according to the following reaction:
2 Ag+ Sw AS 0
a. Identify the limiting reagent if 50.0 g Ag reacts with 10.0 g S.
b. What is the theoretical yield in g of Ag25 produced from the reaction?
c. What is the amount in g of the excess reactant expected to remain after the reaction?
d. When the reaction occurred, the amount of Ag,S obtained was 45.0 g. What is the percent yield of the
reaction?
3. For the balanced equation shown below, if the reaction of 77.0 grams of CaCN; produces 27.1 grams
of NH, what is the percent yield?
CaCN, + 3H,0 > Caco, + 2NH,
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