Homework Help: chemistry-confirm please

Posted by Tom on Sunday, May 25, 2008 at 2:51pm.

Only a chemist can be trusted with the combination to the safe containing a ton of money. The combination is the pH of solution A, followed by the pH of solution C. (for example: is the pH of solution A is 3.47 and the pH of solution C is 8.15 the combination to the safe is 3-47-8-15) The chemist must determine the combination using only the information below (all solutions are at 25 degrees C)

Solution A is 50.00 mL of a 0.100 M solution of the weak monoprotic acid HX.

Solution B is a 0.0500 M solution of a salt NaX. It has a pH of 10.02.

Solution C is made by adding 15.00 mL of .250 M KOH to solution A.

What is the combination to the safe?

Based on how the yquestion said to state the answer i got 4-17-7-82

is that answer correct?

chemistry-confirm please - DrBob222, Sunday, May 25, 2008 at 7:52pm
That looks good to me. I obtained 4-17-7-81 but the difference probably is rounding.

Answer this Question

Related Questions

Chemistry - Captain Kirk, of the Starship Enterprise, has been told by his ...
chemistry - Captain Kirk, of the Starship Enterprise, has been told by his ...
Chemistry - Only a chemist can be trusted with the combination to the safe ...
Chemistry - Only a chemist can be trusted with the combination to the safe ...
math ,correction - consider determining how many possible phone numbers are in ...
chemistry - what type of reaction is this Li + H2O --> LiOH A. ...
math - Which should be used a permutation or combination? Determine the number ...
Math - a company makes combination locks with 50 numbers printed on the dial. ...
Science - What combination of precision and accuracy is the most desirable for ...
mathss - a combination lock has three dials, each numbered from 1-9. each ...

For Further Reading

First Name:
School Subject:
Answer: