# Chemistry

what is the pH solution in which 15 mL of 0.10 M NaOH has been added to 25 mL of 0.10 M HCl

1. 👍 0
2. 👎 0
3. 👁 167
1. HCl + NaOH ==> NaCl + H2O
millimols NaOH = 15 x 0.1 = 1.5
mmols HCl = 25 x 0.1 = 2.5
Excess HCl = 2.5-1.5 = 1
(HCl) = (H^+) = 1 mmol/40 mL = ?
Convert to pH.

1. 👍 0
2. 👎 0
2. Did you get a definitive answer to the SO2/O2/SO3 question?

1. 👍 0
2. 👎 0

## Similar Questions

1. ### General Chemistry

Starting out with 50 mL of 0.20 M NaHCO3, calculate how many mL of 0.50 M NaOH solution to add to make 100 mL of approximately 0.10 M (total) buffer solution with a pH of 10.35. By adding NaOH, some of the NaHCO3 gets converted to

asked by Lucy on April 3, 2012
2. ### Chemistry

In the titration of a solution of a weak acid HA with NaOH the pH is 5.0 after 10ml of NaOH solution has been added and 5.6 after 20ml of the NaOH solution has been added. Find the PKa of HA? Pls give some hints to solve this

asked by Sandu on October 5, 2016
3. ### Chemistry

A student begins with 25 mL of a 0.434 M solution of HI and slowly adds a solution of 0.365 M NaOH. 1. What is the pH after 15.00 ml of NaOH solution has been added? 2. What is the pH after 40 ml of NaOH solution has been added?

asked by zac on June 3, 2013
4. ### chemistry

three student chemists measured 50.0 mL of 1.00 M NaOH in separate Styrofoam "coffee cup" calorimeters ( Part B). Brett added 50.0 mL of 1.10 M HCI to his solution of NaOH; Dale added 45.5 mL of 1.10 m HCL 9 eqaul moles) to his

asked by Daniel on January 17, 2011
5. ### chemistry Who clearly step by step

What per cent of free s03 can be obtained from 100g oleum, that is labeled with 113.5% h2s04? To 100 ml of 5M naoh solution density 1.2g/ml were added 200ml of another naoh solution with have a density 1.5g/ml and contains 20 mass

asked by ken on June 29, 2014
1. ### Chemistry

100g of water is added into 10.6m NaOH solution.What is the mol fraction of NaOH in the diluted NaOH solution. Density of NaOH is 1.08g/ml

asked by Que on June 30, 2016
2. ### chemistry

Consider a solution containing 0.47 M HOCl and 0.67 M NaOCl for the next two questions. The Ka for HOCl = 3.5E-8. What is the pH of this solution? Now calculate the pH of this solution after 0.15 mol of NaOH is added to 1.00 L of

asked by anonymous on February 18, 2015
3. ### Chemistry

100 g of water is added into 10.6 m NaOH solution. The diluted NaOH solution is then neutralized completely with H2SO4 solution. Density of NaOH is 1.08 g/ml. Calculate: i. the mol fraction of NaOH in the diluted NaOH solution.

asked by Ann on June 28, 2016
4. ### chemistry

1. 25.0mL of 0.20M Propanic acid (HC3H5O2, Ka = 1.3Ã—10-5) is titrated using 0.10M NaOH. Calculate the following pH. Show your work. a. When 0.0 mL NaOH is added. b. When 25.0 mL NaOH is added c. When 50.0 mL NaOH is added d.

asked by fun on March 7, 2017
5. ### chemistry

calculate the mass of NaOH neded to prepare 500mL of a 0.10 M solution. I'm pretty sure the answer is 2g, but how do I get to that? Another question: calculate the molar amount of KHP used to neutralize the NaOH solution. .51 g of

asked by Rebecca on October 14, 2007
6. ### Chemistr

To 10ml of a 0.10 acetic acid solution a 0.10M NaOH solution is added what is ph of the solution when 9.5ml of NaOH have been added

asked by Juma on January 8, 2018

More Similar Questions