3. The reaction of 7.8 g benzene, CoHe, with excess HNO, resulted in 0.90 g of H20. What is the percentage yield? CH6 + HNO3 → CH;NO2 + H2O nid UNIO ר of NO

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3. The reaction of 7.8 g benzene, C&Ha, with excess HNO, resulted in 0.90 g of H20. What is
the percentage yield?
CHs + HNO,+ CSHSNO2 + H20
4. How many grams of nitric acid, HNOs, can be prepared from the reaction of 138 g of NO2
with 54.0 g H20 according to the equation below? Balanced first the given equation.
NOz + H20 → HNO3 + NO
5. Which of the following statements is TRUE? Show your proof.
1. The molar mass of CaCO, is 100.1 g/ mol.
II. 50 g of CaCO,contains 9 x102 oxygen atoms.
III. A 200 g sample of CaCo, contains 2 moles of CaCo,
a. I only
b. Il only
c. Il only
d. I and III only
e. I, II, and II
Transcribed Image Text:3. The reaction of 7.8 g benzene, C&Ha, with excess HNO, resulted in 0.90 g of H20. What is the percentage yield? CHs + HNO,+ CSHSNO2 + H20 4. How many grams of nitric acid, HNOs, can be prepared from the reaction of 138 g of NO2 with 54.0 g H20 according to the equation below? Balanced first the given equation. NOz + H20 → HNO3 + NO 5. Which of the following statements is TRUE? Show your proof. 1. The molar mass of CaCO, is 100.1 g/ mol. II. 50 g of CaCO,contains 9 x102 oxygen atoms. III. A 200 g sample of CaCo, contains 2 moles of CaCo, a. I only b. Il only c. Il only d. I and III only e. I, II, and II
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