Answer to Question #118974 in General Chemistry for sara

General Chemistry

Question #118974

Calculate the mass of X required to prepare 250 mL standard solution of molarity 0.017 moles/dm3

Expert's answer

C(x) = m(x)/(M(x)*V(x)

С(x) = n(x)*V(x)

n(x) = C(x)/V(x)=0.017 moles/dm³/ 0.25 dm^{3 =}0.068 moles

What is molar mass of X?

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