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mass of A) 98.3 B) 56.5 28: The gas that evolves when HCl is added to the limestone is A) CO₂ B) CH4 C) H₂ of the following factors affect the rate of a chemical reaction D)O₂ D) nature of the reactants E) None of them E) All of them

mass of A) 98.3 B) 56.5 28: The gas that evolves when HCl is added to the limestone is A) CO₂ B) CH4 C) H₂ of the following factors affect the rate of a chemical reaction D)O₂ D) nature of the reactants E) None of them E) All of them

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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Q3: The active ingredient in bleach is A) Sodium hypochlorite B) Sodium chloride C)Sodium chlorate D)Sodium hydroxid Q4: Analysis of KClO3 Mixture Experiment: 2KCIO3(s)→2KCl(s) + 302(g) Oxygen gas was collected over water at 25°C. The following data was obtained: Volume of the collected gas Atmospheric pressure Vapor pressure of water at experimental temperature 62.7 ml 760 torr 23.4 torr Calculate the number of moles of KCIO3 in the sample. C) 2.89×10-3 A) 1.66 × 10-3 B) 4.97x 10-3 D)1.93×10-3 E) 2.48×10-³ Q5 A 0.750 g sample of finely ground limestone was placed in an Erlenmeyer flask, and 25.00 mL of 1.00 M HCI was added. The resulting solution was titrated against 0.50 M NaOH requiring 25.8 mL of the NaOH. What is the mass% of CaCO3 in the limestone (molar mass of CaCO3) = 100 g/mol? A) 80.7% C) 44.4% B) 90.1% D) 45.0% Q6: What is the molar mass of an Ideal gas if a 0.722g sample of this gas occupies a volume of 300 ml at 35 °c and 789 torr ? A) 70.13 B) 62.35 C) 60.89 D) 50.6 E) 58.7 Q7: A 0.54 g sample of a volatile liquid occupies 185 ml flask at 100 °C and 760 torr. What the molar mass of the volatile liquid (g/mol)? A) 98.3 D) 89.3 E) 97.2 B) CH4 C) H₂ D)O₂2 E) None of them 29: Which of the following factors affect the rate of a chemical reaction A) Catalyst B) concentration C) temperature D) nature of the reactants E) All of them B) 56.5 C) 79.2 Q8: The gas that evolves when HCl is added to the limestone is A) CO₂
Transcribed Image Text:Q3: The active ingredient in bleach is A) Sodium hypochlorite B) Sodium chloride C)Sodium chlorate D)Sodium hydroxid Q4: Analysis of KClO3 Mixture Experiment: 2KCIO3(s)→2KCl(s) + 302(g) Oxygen gas was collected over water at 25°C. The following data was obtained: Volume of the collected gas Atmospheric pressure Vapor pressure of water at experimental temperature 62.7 ml 760 torr 23.4 torr Calculate the number of moles of KCIO3 in the sample. C) 2.89×10-3 A) 1.66 × 10-3 B) 4.97x 10-3 D)1.93×10-3 E) 2.48×10-³ Q5 A 0.750 g sample of finely ground limestone was placed in an Erlenmeyer flask, and 25.00 mL of 1.00 M HCI was added. The resulting solution was titrated against 0.50 M NaOH requiring 25.8 mL of the NaOH. What is the mass% of CaCO3 in the limestone (molar mass of CaCO3) = 100 g/mol? A) 80.7% C) 44.4% B) 90.1% D) 45.0% Q6: What is the molar mass of an Ideal gas if a 0.722g sample of this gas occupies a volume of 300 ml at 35 °c and 789 torr ? A) 70.13 B) 62.35 C) 60.89 D) 50.6 E) 58.7 Q7: A 0.54 g sample of a volatile liquid occupies 185 ml flask at 100 °C and 760 torr. What the molar mass of the volatile liquid (g/mol)? A) 98.3 D) 89.3 E) 97.2 B) CH4 C) H₂ D)O₂2 E) None of them 29: Which of the following factors affect the rate of a chemical reaction A) Catalyst B) concentration C) temperature D) nature of the reactants E) All of them B) 56.5 C) 79.2 Q8: The gas that evolves when HCl is added to the limestone is A) CO₂
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