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Vedmedyk [2.9K]
2 years ago
7

How many grams of solute are present in 615 ml of 0.630 m kbr?

Chemistry
1 answer:
Tom [10]2 years ago
7 0
Molarity is the number of moles of solute in 1 L of solution
molarity of KBr solution is 0.630 M
this means that there there are 0.630 moles of KBr in 1 L solution 
then in 615 mL number of KBr moles are - 0.630 mol/L x 0.615 L = 0.387 mol
mass of KBr is - molar mass x number of moles 
KBr molar mass is 119 g/mol x 0.387 mol = 46.1 g
mass of KBr is 46.1 g
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