# Molar Measurement: Question Preview (ID: 28743)

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What is the formula mass (molecular mass) of Al(C2H3O2)3? |
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a) 204 g/mol | b) 306 g/mol | c) 122 g/mol | d) 158 g/mol | |

How many atoms of oxygen are in one formula unit of Al(C2H3O2)3? |
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a) 6 | b) 3 | c) 2 | d) 5 | |

How many grams is 3.0 x 10^23 atoms of gold? |
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a) 106 grams | b) 95 grams | c) 197 grams | d) 25 grams | |

How many mols is 3.0 x 10^23 atoms of silver? |
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a) 0.48 mol | b) 2.0 mol | c) .75 mol | d) .33 mol | |

626 grams of calcium carbonate is how many mols? |
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a) 6.26 mol | b) 5.73 mol | c) 7.38 mol | d) 3.27 mol | |

How many mols are 35 grams of potassium? |
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a) 1.1 mol | b) 35 mol | c) 0.75 mol | d) 0.90 mol | |

What is the molecular mass of sugar, C12H22O11 |
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a) 180 g/mol | b) 342 g/mol | c) 167 g/mol | d) 426 g/mol | |

What is the atomic mass of lithium? |
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a) 6.94 g/mol | b) 3 g/mol | c) 14.7 g/mol | d) 75 g/mol | |

What is the molecular mass of CO2? |
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a) 12 g/mol | b) 22 g/mol | c) 44 g/mol | d) 400 g/mol | |

What is the mass of 1 formula unit (molecule) of Pb(NO3)2? |
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a) 331 g/mol | b) 5.5 x 10^-23 grams | c) 5.5 x 10^-22 grams | d) 1.2 x 10^-21 grams | |

What is the formula mass (molecular mass) of barium chloride? |
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a) 137 g/mol | b) 172 g/mol | c) 70 g/mol | d) 207 g/mol | |

308 grams of carbon dioxide would equal how many mols? |
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a) 44 mols | b) 6.0 mols | c) 7.0 mols | d) 8.0 mols | |

How many atoms are in 4.2 grams of zinc? |
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a) 3.9 x 10^22 atoms | b) 6.3 x 10^22 atoms | c) 6.02 x 10^23 atoms | d) 4.2 atoms | |

What mass would 7.1 x 10^24 molecules of CO2 weigh? |
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a) 12 grams | b) 520 grams | c) 630 grams | d) 44 grams | |

44.8 Liters of CO2, measured at STP, would have what mass? |
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a) 63.7 grams | b) 22.4 grams | c) 44 grams | d) 88 grams | |

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