Posted by **sabrina:yes i couldn't post the cell diagram H+** on Friday, November 30, 2012 at 11:26pm.

Enter part(a), (c) with 2 siginificant digits and part(b) with 3 siginificant digits.

Enter scientific notation as 1.23E4.

(a) What is Ecell if the unknown solution in the half-cell on the left has pH = 4.94?

____________

(b) What is Ecell if the unknown solution in the half-cell on the left is 0.03890 M HCl?

____________

(c) What is Ecell if the unknown solution in the half-cell on the left is 0.194 M HA, where HA represents a weak acid with Ka = 1.8x10−5?

____________

## Answer this Question

## Related Questions

- CHEMISTRY - cell diagram:H2(g,1atm) Pt Enter part(a), (c) with 2 siginificant ...
- CHEMISTRY - A concentration cell is constructed of two hydrogen electrodes. The ...
- CHEMISTRY - Use the Nernst equation and calculate Ecell for each of the ...
- CHEMISTRY - Use the Nernst equation to calculate Ecell for each of the following...
- CHEMISTRY - Use the Nernst equation and data from Appendix D to calculate Ecell ...
- physics - Using Newton's Law of Universal Gravitation, compare the effect of the...
- Chemistry (Check) - Classify each of these statements as always true, sometimes ...
- math - Can u please help me with this..this is my sons 6th grade work and im ...
- math - x has 3 digits. the tens digits is half the hundreds digits. the number ...
- math - Posted by nicole on Monday, September 22, 2008 at 4:32pm in response to ...