5.00 mL of a 0.5M HCl is added to 150.0 mL of water. What is the...

Question

Question

5.00 mL of a 0.5M HCl is added to 150.0 mL of water. What is the pH after the acid is added?

science chemistry

Answer 1

Answer #1

Final Volume of solution(inL) = 0.150+ 0.005 = 0.155L

Moles of HCl added = Molarity * Volume of HCl added(inL)

= 0.5*0.005 = 0.0025 moles HCl

So, concentration of H+ ions = moles/Total volume = 0.0025/0.155 = 0.01613 = [H+]

pH = -log[H+]

= -log(0.01613) = 1.79 (Answer)

Answer 2

Similar Homework Help Questions

If the same 5.00 mL of a 0.5M HCl is added to 150.0 mL of MOPS...

If the same 5.00 mL of a 0.5M HCl is added to 150.0 mL of MOPS buffer. The buffer contains 0.500M MOPS-H and 0.500M MOPS. Calculate the new pH after the acid was added. MOPS pKa =7.2
100.0 mL of 3.00 M HCl (in water) is added to 50.0 mL of 5.00 M...

100.0 mL of 3.00 M HCl (in water) is added to 50.0 mL of 5.00 M NaOH in a beaker. What is present in the beaker?
5.00 mL of 0.250 M ammonia (NH3) is titrated with 0.100 M hydrochloric acid (HCl). The...

5.00 mL of 0.250 M ammonia (NH3) is titrated with 0.100 M hydrochloric acid (HCl). The Kb for ammonia is 1.75 x 10-5 What is the pH of the ammonia solution prior to the addition of any HCl? What is the pH of the solution after 5.00 mL of HCl has been added?

10 mL of 1M NaOH solution is titrated with 0.5M HCl to a pH of 2....

10 mL of 1M NaOH solution is titrated with 0.5M HCl to a pH of 2. What volume of HCl was added? (in unit of mL) Please show all work and explain!
24 mL of 0.25M HCl is added to 8 mL of water, and then titrated with...

24 mL of 0.25M HCl is added to 8 mL of water, and then titrated with 5 mL of 0.30 M NaOH. What is the initial pH of the HCl and water solution?
2.613 g of NaCl (s) is added to 150.0 mL of water, H2O (l). What is...

2.613 g of NaCl (s) is added to 150.0 mL of water, H2O (l). What is the molarity of this solution?

3. (a) Calculate the change in pH when 5.00 mL of 0.100 M HCl(aq) is added...

3. (a) Calculate the change in pH when 5.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq). (b) Calculate the change in pH when 5.00 mL of 0.100 M NaOH(aq) is added to the original buffer solution.
Calculate the change in pH when 5.00 mL of 0.100 M HCl(aq) is added to 100.0...

Calculate the change in pH when 5.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq). Consult the table of ionization constants as needed. Calculate the change in pH when 5.00 mL of 0.100 M NaOH is added to the original buffer solution.
A 100 ml of 0.5M HCl was transferred into a 250 ml flask. In order to...

A 100 ml of 0.5M HCl was transferred into a 250 ml flask. In order to generate hydrogen gas, a 10.0 g sample of Zn was added to the acid, and the flask was immediately capped with balloon as shown in figure. Calculate the number of hydrogen gas molecules formed inside the balloon at 20°C.

heading Harding 2 A Student added 49.6 mL of 0.73 M solution of HCl to a...

heading Harding 2 A Student added 49.6 mL of 0.73 M solution of HCl to a beaker. The student then added 50 mL of DI water to the beaker. The HCl was titrated with 1248 ml of 0.73 M N O solution without reaching the equivalence point. Answer questions 21 - 25 with this information 21. How many moles of HCl are in the initial solution? (3 pts) 22. What is the molarity of the initial HCl solution after adding...