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2 years ago

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0.0200 moles of a compound is found to have a mass of 1.64 g. Find the formula mass of the compound

1 answer:

KatRina [158]2 years ago

3 0

Answer: 82.0 g/mole

Explanation:

Use the units to see that if we divide 1.64 grams by 0.0200 moles, we'll get a number that is grams/mole, the definition of formula mass.

1.64/0.0200 = 82.0 g/mole (3 sig figs)

We can't tell from this alone what the molecular formula might be, but C6H10 (cyclohexene) comes close (82.1 grams/mole).

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2 years ago

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