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3 years ago

What volume of a 0.100MHCl0.100MHCl stock solution should be used to prepare 250.00mL250.00mL of 0.0250MHCl0.0250MHCl?

Chemistry

1 answer:

vladimir2022 [97]3 years ago

6 0

<h3>Answer:</h3>

62.5 mL

<h3>Explanation:</h3>

<u>We are given;</u>

Molarity of the stock solution as 0.100 M
Volume of the dilute solution as 250 mL
Molarity of dilute solution as 0.0250 M

We are required to calculate the Volume of the stalk solution.

Taking the volume and molarity of the stock solution to be V₁ and M₁ respectively, and volume and molarity of the dilute solution to be V₂ and M₂ respectively.

We are going to use the dilution formula;

According to the dilution formula, M₁V₁ = M₂V₂
Rearranging the formula;

V₁ = M₂V₂ ÷ M₁

= (0.025 M × 0.25 L) ÷ 0.100 M

= 0.0625 L

But, 1 L = 1000 mL

V₁ = 62.5 mL

Therefore, the volume of the stock solution is 62.5 mL

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<h3>Computation for the energy absorbed</h3><h3 />

The given reaction has been:

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The bond energy of the reactant has been:

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The energy absorbed by the system before the reaction start has been 752 kJ/mol.

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2 years ago

What volume of a 0.100MHCl0.100MHCl stock solution should be used to prepare 250.00mL250.00mL of 0.0250MHCl0.0250MHCl?​

What volume of a 0.100MHCl0.100MHCl stock solution should be used to prepare 250.00mL250.00mL of 0.0250MHCl0.0250MHCl?