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If you use 19 mL of 0.100 M KMnO4, how many moles have you used? The answer has to be in four decimal places (do not forget the leading zero). No scientific notation.

How much 5.0 M H2SO4 needs to be used to make 152 mL of 1.0 M? Round answer to nearest whole number and omit units.

Verified Answer :

Willchemistry

1)

Volume = 19 / 1000 = 0.019 L

n = M V

n = 0.100 0.019

n = 0.0019 moles
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2)

 M₁ V₁ = M₂ V₂

5.0 V₁ = 1.0 152

5.0 V₁ = 152

V₁ = 152 / 5.0

V₁ = 30.4 mL
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hope this helps!

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