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3 years ago

What is the molarity of a stock solution if 60 mL were used to make 150 mL of a .5M solution

Chemistry

1 answer:

kirza4 [7]3 years ago

6 0

Answer:

The answer to your question is 1.25 M

Explanation:

Data

Molarity 1 = ?

Volume 1 = 60 ml

Molarity 2 = 0.5 M

Volume 2 = 150 ml

Process

1.- Write the dilution formula

Molarity 1 x Volume 1 = Molarity 2 x Volume 2

-Solve for Molarity 1

Molarity 1 = Molarity 2 x Volume 2 / Volume 1

-Substitution

Molarity 1 = (0.5)(150) / 60

-Simplification

Molarity = 75 / 60

-Result

Molarity = 1.25 M

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Answer: The correct answer is Option 5.

Explanation:

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We are given:

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Putting values in above equation, we get:

$1\times M_1\times 250=1\times 0.15\times 100\\\\M_1=0.06M$

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