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2. Atoms & Elements

Calculating Molar Mass

2. Atoms & Elements

Calculating Molar Mass

Multiple Choice
What is the mass in grams of 5.90 mol of C_8H_{18} (octane)?
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Multiple Choice
Given 10.0 grams of C6H12O6 (glucose), how many oxygen atoms are present in the sample?
117
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Multiple Choice
How many oxygen atoms are present in one formula unit of the compound Ba(OH)_2?
100
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Open Question
Which is the formula mass of Na₂SO₄? 119.06 amu, 125.98 amu, 142.05 amu, or 174.12 amu?
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Multiple Choice
How many grams of K2SO4 are present in 0.123 mole of K2SO4? (Molar mass of K2SO4 = 174 g/mol)
129
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Multiple Choice
What is the molar mass of NaCl?
151
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Multiple Choice
What is the molar mass of Al_2(SO_4)_3?
112
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Multiple Choice
Calculate the molecular weight of C₃H₅N₃O₃.
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Multiple Choice
What is the molar mass of sodium hydroxide (NaOH)?
174
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Multiple Choice
What is the molar mass of table salt (NaCl)?
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Multiple Choice
How many iron atoms are present in a 354 g sample of iron (Fe)?
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Multiple Choice
What is the molar mass of N_2?
133
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Multiple Choice
How many chlorine atoms are present in 29 molecules of chloroform (CHCl_3)?
152
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Multiple Choice
Which of the following represents the largest amount of Ag?
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Multiple Choice
What is the mass in grams of 5.32 \(\times\) 10^{22} molecules of CO_2?
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