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Exercício de para preparar nh3 aq 6 0 m pode-se medir 120 ML de nh3 (aq) 15 mol/L
Exercício:
para preparar nh3 aq 6 0 m pode-se medir 120 ML de nh3 (aq) 15 mol/L
A) acrescentar 100 mL de água
b)acrescentar 250mL de água
c) acrescentar 400mL de água
d) diluir a 200mL com água
e)diluir a 300 mL com água
M1V1=M2V2
150.120=6,0V2
1800=6V2
V2=1800/6
V2=300ml
Resposta: e) diluir a 300ml com água
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