Posted by **Anonymous** on Thursday, April 19, 2007 at 8:29pm.

7.0 ml of 6.0 M NaOH are diluted with water to a volume of 400 ml. You are asked to find the molarity of the resulting solution. The total number of moles of NaOH is not changed on dilution. Calulate the molarity.

Work: (6)(.007)=(x)(.4)

x=.105M

Thanks for showing your work. I wish more students would do that.

Since the new volume would be 407 ml, I would say

(6)(.007)=(x)(.407)

x=.103M

The problem states that 7.0 mL is diluted with water

**to a volume of 400 mL.** So the 7.0 mL is included in the 400 and 400 mL is the final total volume. Therefore, the molarity is as first calculated of 0.105 M.

## Answer This Question

## Related Questions

- Chemistry help - I am confused as to how to solve the below problem. I am not ...
- Chemistry 12 - Hi, I did the acid-base titration lab with HCl and 0.5M NaOH. I ...
- Chemistry - determine the approximate molarity of a solution of NaOH prepared by...
- chemistry - What is the molarity of a solution 12.5 naoh dissolved in total ...
- chemistry - So I did a titration lab at school with NaOH and HCl. i have to find...
- chemistry - 1. if 15.0mL of 4.5 M NaOH are diluted with water to a volume of ...
- chemistry - A 2.5 g sample of NaOH (Mw = 40.00) was dissolved in water to give a...
- Chemistry (molarity) (sorta an emergency) - I'm doing a titration lab and ...
- AP Chemistry - An unknown amount of water is mixed with 350 mL of a 6 M ...
- Chemistry - Can someone please tell me if I did this correctly? Calculate the ...

More Related Questions