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Answer to Question #7116 in Physical Chemistry for sara

Question #7116
'A(aq) 2 B(aq)-----> AB 2 (aq) suppose that 40ml of .0116 M A(aq) is mixed with 50ml of .0202 M B(aq) and after the reaction .000375 moles of AB2 were obtained calculate the moles of A and B before the reaction

Expert's answer
Moles of A:

n(A) = 40*10-3 dm3 * 0.0116 M = 0.000464 mol

Moles of
B:

n(B) = 50*10-3 dm3 * 0.0202 M = 0.00101 mol

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