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Citrus2011 [14]
2 years ago
15

What is the mass of solute in 200.0 L of a 1.556-M solution of KBr

Chemistry
1 answer:
sergejj [24]2 years ago
4 0
The molarity of KBr solution is 1.556 M
molarity is defined as the number of moles of solute in volume of 1 L solution.
the number of KBr moles in 1 L - 1.556 mol
Therefore in 200.0 L - 1.556 mol/L x 200.0 L = 311.2 mol
Molar mass of KBr - 119 g/mol 
mass of Kbr - 311.2 mol x 119 g/mol = 37 033 g
mass of solute therefore is 37.033 kg
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Z = \frac{1800*10^3 *0.1249}{729.77*523.15}

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