# Chemistry

What is the pH of the solution created by combining 1.30 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)?

This is how I would go about solving the problem, but could you tell me where I went wrong?

First I would find the number of mols of OH from NaOH and then use
HCl+OH -> HOH + Cl- to find the mols of HCl and Cl- after neutralization...and then use an ICE chart to find H and henceforth pH. I don't think this is correct because my answer came out negative.

1. 👍 0
2. 👎 0
3. 👁 257
1. The method looks ok.
NaOH + HCl ==> NaCl + HOH

mols NaOH = L x M = (1.30 mL/1000) x0.10 = 0.00013
mols HCl = L x M = (8/1000) x 0.10 = 0.0008

Reagent in excess is HCl. Therefore, all of the NaOH will be used, 0.00013 mols NaCl and HOH formed. Mols HCl remaining unreacted is 0.0008-0.00013 = 0.00067
Molarity HCl remaining is mols/L (combined volume is 1.13 + 8.9 = 9.13 mL)

Then find pH of the HCl solution. Should be about 1 or so.

1. 👍 0
2. 👎 0

## Similar Questions

1. ### AP CHEMISTRY

What would be the pH of a solution prepared by combining equal quantities of NaH2PO4 and Na2HPO4? Explain with an equation.

In this section, we talked about combining a solar cell with a photoelectrode to form a photoelectrochemical device. Why do we add a solar cell in the system? a)Because the photoelectrode is not able to produce any voltage

3. ### chemistry

A buffer system is created by neutralizing the supernatant solution containing Pb^2+, Fe^3+, Al^3+, Ca^2+, Cu^2+, and K^+ ions with 6M NH3 solution and then adding an equal volume of 6M NH3 solution. Explain what forms of 6M NH3

4. ### Chemistry

A solution is created by dissolving 13.0 grams of ammonium chloride in enough water to make 265 mL of solution. How many moles of ammonium chloride are present in the resulting solution? When thinking about the amount of solute

1. ### Science

Ms. Lewis is a chemist mixing two solutions together. A chemical reaction takes place, and the solution becomes warm. Which statement best describes what has happened? A. Energy has been created in the form of thermal energy B.

2. ### math

2x+4(1-x)=11+5x 2x+4-4x=11+5x 6x+4=11+5x 6x=7+5x x=7 i think this is it x = 7 is not correct. Here's how the problem should work out: Use the distributive property to get rid of the parentheses and you will end up with this: 2x +

3. ### chemistry

What is the pH of the solution created by combining 0.80 mL of the 0.10 M NaOH(aq)with 8.00 mL of the 0.10 M HC2H3O2(aq)?

4. ### chemistry

What is the pH of the solution created by combining 2.80 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HC2H3O2(aq)? I got 1.3. is that correct?

1. ### Chem

I don't get how to do this: What is the pH of the solution created by combining 11.30 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)? What are the pH values if you take into

2. ### chemistry

REVISION TO PREVIOUS POST: What is the pH of the solution created by combining 1.90 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 ml of the 0.10 M HC2H3O2(aq)? I understood how to do the HC2H3O2, but I

3. ### medicine

What is final concentration of a mixed solution combining 50ml of 20% solution, 150 ml of a 15% solution and 200 ml of a 35% solution?

4. ### Chem

There are three questions in particular that I am having problems with. Here they are 1. A standard solution of FeSCN2+ is prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN. The equilibrium concentration