Mole calculations

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Mole calculations

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What is the molar mass of magnesium nitrate?

54.32 g/mol

86.32 g/mol

134.32 g/mol

148.33 g/mol

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What is the mass of 2 moles of aluminum hydroxide?

44 g

78 g

88 g

156 g

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How many moles are in 12.25 mg of phosphorus trichlroide gas?

137.32 moles

0.089 moles

1.7 moles

8.9 x 10E(-5) moles

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What is the mass of 7.55 micromoles of carbon dioxide?

3.32 x 10E(-4) grams

332 grams

0.332 grams

44.0 x 10E(-6) grams

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How many molecules are in 0.235 moles of potassium oxide?

3.90 x 10E(-25) molecules

1.41 x 10E23 molecules

22.1 molecules

1.33 x 10E25 molecules

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How many molecules are in 0.0115 grams of iron (III) sulfate?

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What is the mass of 4.50 x 10E26 molecules of silver chloride?

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