Question

calculate molarity of solution prep by dilluting 250ml of 17m H2SO4 to 1000ml​

Answer 1

Answer:

0.25

Explanation:

I understand that you want to prepare 250 mL of 1 M H2SO4. You have available an adequate volume of 5 M H2SO4.

Use the formula

M1 x V1 = M2 x V2

1 M x 250 mL = 5 M x V2

V2 = 1 x 250 / 5 = 50 mL

Carefully mix 200 mL of water and 50 mL of 5 M H2SO4.

To check: Ask how many moles of acid are required to prepare the 1 M solution? Answer 0.25 moles.

And how many moles did we obtain from the 5 M solution? Answer 0.25 moles

QED

0.050 L of 5 M acid → 0.25 moles

0.250 L of 1 M acid → 0.25 moles

Answer 2

Answer:

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