19-05-2021
Chemistry

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How many mL of a 4.0M NaBr solution are needed to make 200.0 mL of 0.50 M NaBr?
A)150mL
B)25mL
C)100mL
D)50mL

Respuesta :

math3683 math3683

19-05-2021

Your planning a 1:8 dilution (4.0M:0.5M). Therefore 200ml/8dilution = 25ml. Choice B

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