# Chem

posted by .

Calculate the pH of a solution made by combining 40.0 ml of a 0.14 molar HBrO and 5.0 ml of 0.56 molar NaOH

• Chem -

40.0 mL x 0.14 M HBrO = 5.60 millimols
5.0 mL x 0.56 M NaOH = 2.8 mmols.

.........HBrO + NaOH ==> NaBrO + H2O
I........5.60
C.......-2.80..-2.80.....+2.80
E........2.80....0........2.80

Use the Henderson-Hasselbalch equation with the E line above to solve for pH

## Similar Questions

1. ### Chemistry

Hi, I posted yesterday with this lab question. "Calculate the molar amounts of NaOH used in the reaction with the HCl solution and with the HC2H3O2. I think I got the answer to that with the help that I received. I had 5 mL of HCl, …
2. ### chemistry

KHP is a monoprotic acid with a molar mass of 204.22 g/mol. The titration data are as following. The average concentration of NaOH solution is M. 1 2 3 mass of KHP (g) 2.789 2.543 2.612 vol NaOH used (mL) 27.77 23.22 27.12 You didn't …
3. ### chem

1 molar solution of Pb(NO3)2 you want 3mL of 0.5 Molar Pb(NO3)2 how much of the one molar solution do you mix with H2O to reach your goal
4. ### chemistry

a titration is done with with 25.00 mL of a .1500 M HBrO solution is titrated with .1025 M NaOH. Ka for HBrO= 2.0 x10^-9. The pH of HBrO before the titration begins is approx. closest to which of the following a. 0.82 b. 4.76 c. 8.70 …
5. ### chem

How many liters of 12.3 molar NaOH stock solution will be needed to make 12.4 liters of a 1.2 molar NaOH solution?
6. ### chemistry

1. if 15.0mL of 4.5 M NaOH are diluted with water to a volume of 500mL, what is the molarity of the resulting solution?