Posted by **Ana** on Tuesday, May 4, 2010 at 5:00pm.

Dilution calculation: use the formula M1V1=M2V2

How many milliliters of 12 M HCl would be needed to make 200 mL of a 1.0 M HCl solution?

I got 16.67 mL HCl for this part but there's a secondary question.

It says: How much water would be used to make this solution?

I have no clue what to do for that. Help, please and thank you.

- Chemistry -
**DrBob222**, Tuesday, May 4, 2010 at 5:50pm
200*1 = x*12

x = 16.67 mL.

The problem states that you are making 200 mL; therefore, 16.67 comes from the 12 M stuff and 200-16.67 comes from added water. Technically, this isn't correct because the two solutions may not be additive but for dilution problems of dilute solutions these problems usually mean that we assume they are (exactly additive). The way we get around that, in real life, is we would add 16.67 mL of the 12 M stuff to a volumetric flask of exactly 200 mL, then add water to the mark to make the final solution exactly 200 mL. So how much water would we add. The answer is ABOUT 200-16.67. I think this problem wants that answer without the word about.:-)

## Answer this Question

## Related Questions

- chemistry - What is the pH of the solution created by combining 2.80 mL of the 0...
- Chemistry - a solution of HCL is approximately 0.1M and has to be standardized...
- chemistry - My problem is calculate the molarity of HCl and NaOH. (molarity of ...
- chemistry - 10). What is the molarity of an HCl solution if 42.5 mL of a 0.110 M...
- Chemistry - Prepare a 0.0200 mM dye solution at low pH by dilution 0.40 ml of ...
- Brad - My problem is calculate the molarity of HCl and NaOH (molarity of acid)x(...
- Chemistry - what volume, in L, of a 10.0M HCL solution is needed to make 2.00L ...
- chemistry - Hello, Please help me with this question! Which dilution would turn ...
- chemistry - Concentrated hydrochloric acid is a 38% solution of hcl in water and...
- chemistry solution preparations - how can we prepare 0.5 n solution of hcl as we...