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Laws of Definite Proportions, Multiple Proportions

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Question

A solution contains 40 g of common salt dissolved in 320 mL of water. Calculate the mass concentration of the solution.

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Solution

$M a s s o f s a l t (m_{i}) = 40 g V o u m e o f s o l u t i o n (V) = 320 m l M a s s c o n c e n t r a t i o n (ρ_{i}) = \frac{m_{i}}{V} M a s s C o n c e n t r a t i o n (ρ_{i}) = \frac{40 g}{320 m l} = 0.125 g / m l = 12.5 g / 100 m l$

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Laws of Definite Proportions, Multiple Proportions

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