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4. To how much water should 50 mL of 12 M hydrochloric acid be added to

produce o 40 M solution?

1 Answer

4 votes

Answer : The volume of water added are, 15 mL

Explanation :

Formula used :


M_1V_1=M_2V_2

where,


M_1\text{ and }V_1 are the initial molarity and volume of HCl.


M_2\text{ and }V_2 are the final molarity and volume of water.

We are given:


M_1=12M\\V_1=50mL\\M_2=40M\\V_2=?

Putting values in above equation, we get:


12M* 50mL=40M* V_2\\\\V_2=15mL

Hence, the volume of water added are, 15 mL

User Daniel Pinheiro
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