Problem: The density of propane, an odorless hydrocarbon compound used in cooking, is 0.922 g/mL. When a sample of it is placed on an analytical balance a weight of 8.15 × 108 ng is obtained. Calculate the true mass of propane.

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The density of propane, an odorless hydrocarbon compound used in cooking, is 0.922 g/mL. When a sample of it is placed on an analytical balance a weight of 8.15 × 108 ng is obtained. Calculate the true mass of propane.

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