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Answer to Question #43441 in Physical Chemistry for ashley

Question #43441
What volume of 0.1 M NaOH is needed to titrate 100 mL of 0.2 M H2SO4?

a) 50 mL

b) 100 mL

c) 200 mL

d) 400 mL
Expert's answer
2NaOH + H2SO4 --> Na2SO4 + 2H2O
n(NaOH) = 2n(H2SO4),   =>   c(NaOH)V(NaOH) = 2c(H2SO4)V(H2SO4)
V(NaOH) = 2c(H2SO4)V(H2SO4)/c(NaOH) = (2 * 0.2 M * 100 mL) / 0.1 M = 400 mL
So, the correct option is (d): 400 mL

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