How many grams of calcium bromide are in 50.0 mL of a 0.25 M calcium bromide solution?

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13-01-2016
Chemistry

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How many grams of calcium bromide are in 50.0 mL of a 0.25 M calcium bromide solution?

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Willchemistry Willchemistry · Answer 1 · 2016-01-13T00:52:34+01:00

Willchemistry Willchemistry

13-01-2016

Molar mass calcium bromide :

CaBr2 = 40 + 80 * 2 = 200 g / mol

Volume = 50.0 mL : 0.05 L

Molarity = 0.25 M

Mass of solute = ?

M = m / mm * V

0.25 = m / 200 * 0.05

m = 0.25 * 200 * 0.05

m = 2.5 g of CaBr2

hope this helps!.

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