Chemistry

Armando Montes

16 June, 21:22

The molar mass of water (H2O) is 18.02 g/mol. Yun needs 0.025 mol H2O for a laboratory experiment. She calculates that she needs 72.0 g H2O for the experiment.

Yun's calculation was incorrect because she set up her unit conversion incorrectly. What is the correct way for Yun to set up her calculation?

A. N. S: (0.025 mol H2O) 18.02g H2O / 1 mol H2O

How much water does Yun need for the experiment?

A. N. S: 0.45 g

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