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2. Atoms & Elements

Calculating Molar Mass

2. Atoms & Elements

Calculating Molar Mass

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What is the mass in grams of 5.90 mol of C_8H_{18} (octane)?
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Given 10.0 grams of C6H12O6 (glucose), how many oxygen atoms are present in the sample?
146
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How many oxygen atoms are present in one formula unit of the compound Ba(OH)_2?
125
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Domanda aperta
Which is the formula mass of Na₂SO₄? 119.06 amu, 125.98 amu, 142.05 amu, or 174.12 amu?
1320
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How many grams of K2SO4 are present in 0.123 mole of K2SO4? (Molar mass of K2SO4 = 174 g/mol)
159
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What is the molar mass of NaCl?
188
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What is the molar mass of Al_2(SO_4)_3?
130
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Calculate the molecular weight of C₃H₅N₃O₃.
4842
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2
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What is the molar mass of sodium hydroxide (NaOH)?
228
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What is the molar mass of table salt (NaCl)?
206
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How many iron atoms are present in a 354 g sample of iron (Fe)?
170
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What is the molar mass of N_2?
167
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How many chlorine atoms are present in 29 molecules of chloroform (CHCl_3)?
186
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Which of the following represents the largest amount of Ag?
1244
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What is the mass in grams of 5.32 \(\times\) 10^{22} molecules of CO_2?
135
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