Chemistry
13th Edition
ISBN: 9781259911156
Author: Raymond Chang Dr., Jason Overby Professor
Publisher: McGraw-Hill Education
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Chapter 3, Problem 3.70QP
When baking soda (sodium bicarbonate or sodium hydrogen carbonate, NaHCO3) is heated, it releases carbon dioxide gas, which is responsible for the rising of cookies, donuts, and bread. (a) Write a balanced equation for the decomposition of the compound (one of the products is Na2CO3). (b) Calculate the mass of NaHCO3 required to produce 20.5 g of CO2.
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When baking soda (sodium bicarbonate or sodium hydrogen carbonate, NaHCO3) is heated, it releases carbon dioxide gas, which is responsible for the rising of cookies, donuts, and bread. (a) Write a balanced equation for the decomposition of the compound (one of the products is Na2CO3). (b) Calculate
the mass of NaHCO3 required to produce 20.5 g of CO2.
Aluminum sulfide reacts with water to form aluminum hydroxide and hydrogen sulfide. (a) Write a balanced equation for this reaction. (b) How many grams of aluminum hydroxide can be obtained from 5.50 g of aluminum sulfide?
(1) One of the steps in the commercial process for converting ammonia to nitric acid involves the conversion of ammonia, NH3(g) to nitrous oxide, NO(g).
4 NH3(g ) + 5 O2(g) → 4 NO(g) + 6 H2O(l)
Atomic weights (g/mol): N=14, H=1, O=16
a. Balance the above chemical equation that represents the conversion.
b. How many moles of oxygen are needed to convert 2.5 moles of ammonia?
c. How many grams of water will be produced from 2.5 moles of ammonia?
d. If 150 grams of oxygen reacted 2.5 moles of ammonia, identify the limiting and excess reagents.
e. How much of the excess reagent remains unreacted?
f. If the reaction in (d) produces 10.0 grams of nitrous oxide, calculate the percent yield.
Chapter 3 Solutions
Chemistry
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