Answer to Question #116315 in General Chemistry for Nashrah Ahsan

General Chemistry

Question #116315

Calculate how many grams of KO2LAiD are needed to make 43.0 ml of 0.25 M solution

Expert's answer

0.25M means 0.25moles per 1000ml.

Then (43/1000)* 0.25 = 0.01075 moles are in 43ml of solution."Mass = moles*rfm"

Mass =0.01075 *71.1 = 0.76g

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