Answer to Question #137974 in General Chemistry for Lillian Franz

General Chemistry

Question #137974

Calculate the mass percent of 2.57 g KCl

2.57 g KCl dissolved in 40.6 g H2O.

Expert's answer

W(KCl)=m(KCl)/(m(KCl)+m(H₂O))=2.57/(2.57+40.6)=2.57/43.17=0,0595=5,95%

Answer: W(KCl)=5.95%

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