3 years ago

PLZ HELP 20 POINTS

Chemistry

2 answers:

olga55 [171]3 years ago

8 0

I agree with B all of them are two

N76 [4]3 years ago

4 0

I think is the letter B but i dont know if its right

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Determine the volume of distilled water that should be added to 20.0 mL of 12.0 M HCl(aq) in order to prepare a 0.500 M HCl(aq)

BARSIC [14]

Answer:

$V_{H_2O}=460 mL$

Explanation:

Hello!

In this case, in a dilution process, water is added to a solute in order to decrease its concentration but increase the volume of the solution. It means that if we have 20.0 mL of a 12.0-M solution of HCl and we want a 0.500-M solution, we need to apply the following formula considering that the moles remain unchanged:

$M_1V_1=M_2V_2$