阿摩線上測驗
18. What is the volume, in cm3
, of the final solution if 100 cm3
of a solution containing 1.42 g of sodium sulfate,
Na2SO4, is diluted to the concentration of 0.020 mol dm–3? Mr(Na2SO4) = 142
(A) 50
(B) 400
(C) 500
(D) 600
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統計： A(0), B(1), C(2), D(0), E(0) #3217463
統計： A(0), B(1), C(2), D(0), E(0) #3217463
