An oxygen atom has a mass of 2.66 × 10 23 g and a glass of water has a mass of 0.050 kg.Use this information to answer the questions below. Be sure your answers have the correct number of significant digits.What is the mass of 1 mole of oxygen atoms?Round your answer to 3 significant digits.How many moles of oxygen atoms have a mass equal tothe mass of a glass of water?Round your answer to 2 significant digits.☐ sXПG

Step 1: Calculation for the mass of 1 mole of oxygen atoms: 1 mole of any substance contains…

Answered: An oxygen atom has a mass of 2.66 × 10…

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter1: The Nature Of Chemistry

Section1.5: Measurements, Units, And Calculations

Problem 1.5E

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An unknown sample of a metal is 1.0 cm thick, 2.0 cm wide, and 10.0 cm long. Its mass is 54.0 g. Use data in Table 1.1 to identify the metal. (Remember that 1 cm3 = 1 mL.)
A person weighed 15 pennies on a balance and recorded the following masses: 3.112 g 3.109 g 3.059 g 2.467 g 3.079 g 2.518 g 3.129 g 2.545 g 3.050 g 3.053 g 3.054 g 3.072 g 3.081 g 3.131 g 3.064 g Curious about the results, he looked at the dates on each penny. Two of the light pennies were minted in 1983 and one in 1982. The dates on the 12 heavier pennies ranged from 1970 to 1982. Two of the 12 heavier pennies were minted in 1982. a. Do you think the Bureau of the Mint changed the way it made pennies? Explain. b. The person calculated the average mass of the 12 heavy pennies. He expressed this average as 3.0828 g 0.0482 g. What is wrong with the numbers in this result, and how should the value be expressed?
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An iron atom has a mass of 9.27 × 10 2 -23 g and a cooking pot has a mass of 0.500 kg. Use this information to answer the question below. Be sure your answers have the correct number of significant digits. What is the mass of 1 mole of iron atoms? x10 g

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