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natta225 [31]
3 years ago
9

Choose the formula for calculating percent composition.

Chemistry
1 answer:
kondor19780726 [428]3 years ago
6 0

Answer:

The equation for percent composition is (mass of element/molecular mass) x 100.

please mark me as a brainlist

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Now the mass of the 10 mL of water is 10 g as density of water is 10 g/mL. Thus after addition the total mass of the solution is (39 + 10) = 49g and the volume is (30 + 10) = 40 mL. Thus the density of the mixture will be \frac{49}{40}=1.225 g/mL. Thus the specific gravity of the mixed sample will be 1.225 g/mL.

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