with ice table 4. Calculate the pH of the buffer that results from mixing 60.0 mL...

Question

Question

4. Calculate the pH of the buffer that results from mixing 60.0 mL of 0.250 M HCHO, and 15.0 mL of 0.500 M NACHO, ((K= 1.8 x

with ice table

science chemistry

Add a comment Improve this question Transcribed image text

Answer 1

Answer #1

- Anster - Buffer (HHO+ Nacho) . salt weak acid (boml, 0.25m HCHO & 15m1, 0.50m Nacho find the moles for Now we have to each given that ka for Hero is 1.8x104 we know that - pka = -logio ka ka = 1.8 x 104 pla = 3.744 so PH = 3.744 + log (0.9075) 0.01

Add a comment

Answer 2

Similar Homework Help Questions

calculate the pH of the buffer that results from mixing 51.5 mL of a 0.398 M...

calculate the pH of the buffer that results from mixing 51.5 mL of a 0.398 M solution of HCHO2 and 11.5 mL of a 0.605 M solution of NaCHO2. the Ka value for HCHO2 is 1.8 x 10^-4
Calculate the pH of the buffer that results from mixing 50.3 mL of a 0.346 M...

Calculate the pH of the buffer that results from mixing 50.3 mL of a 0.346 M solution of HCHO2 and 17.6 mL of a 0.654 M solution of NaCHO2. The Ka value for HCHO2 is 1.8×10−4.
Calculate the pH of the buffer that results from mixing 51.9 mL of a 0.298 M...

Calculate the pH of the buffer that results from mixing 51.9 mL of a 0.298 M solution of HCHO2 and 16.2 mL of a 0.509 M solution of NaCHO2. The Ka value for HCHO2 is 1.8×10−4. Express your answer to two decimal places.

Calculate the pH of the buffer that results from mixing 90.0 mL of 0.350 M HNO2...

Calculate the pH of the buffer that results from mixing 90.0 mL of 0.350 M HNO2 and 75.0 mL of 0.500 M NaNO2. (Ka = 4.60 x 10-4) a. Using the above initial buffer, calculate the new pH of the buffer when 15.0 mL of a 1.0 M solution of HCl is added. b. Using the above initial buffer, calculate the new pH of the buffer when 0.500 g of NaOH is added.
Question 2: A) Calculate the pH of the buffer that results from mixing 56.1 mL of...

Question 2: A) Calculate the pH of the buffer that results from mixing 56.1 mL of a 0.406 M solution of HCHO2 and 11.9 mL of a 0.606 M solution of NaCHO2. The Ka value for HCHO2 is 1.8×10−4 B) Calculate the initial pH and the final pH after adding 0.010 mol of NaOH. 300.0 mL of a buffer solution that is 0.225 M in HCHO2 and 0.280 M in KCHO2 C) Calculate the initial pH and the final pH...
1. What is the pH of a buffer consisting of 0.30 M CH3COOH & 0.20 M...

1. What is the pH of a buffer consisting of 0.30 M CH3COOH & 0.20 M NACH:COO? Ka= 1.8 x 10-5 2. What is the pH of the buffer with 0.10 M NH3 and 0.20 M NH4NO3? Kl = 1.8 x 10-5 3. What is the pH of a buffer formed from combining 10 mL of 0.250 M HCl with 90 mL of 0.150 M NH3? (K = 1.8 x 10-) 4. Calculate the pH of the solution that results...

Calculate the pH of a buffer made from mixing 7.6 mL of 0.259 M NaC2H3O2 and...

Calculate the pH of a buffer made from mixing 7.6 mL of 0.259 M NaC2H3O2 and 12.1 mL of 0.338 M HC2H3O2. The Ka of HC2H3O2 is 1.8 x 10-5.
Calculate the pH of a buffer made from mixing 7.3 mL of 0.229 M NaC2H3O2 and...

Calculate the pH of a buffer made from mixing 7.3 mL of 0.229 M NaC2H3O2 and 12.2 mL of 0.458 M HC2H3O2. The Ka of HC2H3O2 is 1.8 x 10^-5.
(4) 6 pts. A buffer contains 0.500 M of Formic acid (HCHO,) and 0.500 M of...

(4) 6 pts. A buffer contains 0.500 M of Formic acid (HCHO,) and 0.500 M of sodium formate (NaCHO2). Formic acid is a weak acid that dissociates in water as following: HCHO2 (aq) + H20 (1) =H30+ (aq) + CHO2 (ag) The equilibrium constant: Ks = ([H30+1X[CH02:])/[HCH02] =1.8 x 10-4 Calculate the pH of the buffer solution.

You prepared a phosphate buffer solution by mixing 40.0 mL of 0.250 M KH_2PO_4 and 60.0...

You prepared a phosphate buffer solution by mixing 40.0 mL of 0.250 M KH_2PO_4 and 60.0 mL ol 0.450 M K_2HPO_4 solution. (a) What are the molar concentrations of H_2PO_4 and HPO_4^2-, respectively, in the final buffer solution? (b) Calculate the pH of the solution. (c) Write a net ionic equation when a strong acid, such as HCl(aq) is added to the phosphate buffer solution. (d) Calculate the final pH when 0.0060 mol of HCl is added to the buffer...

with ice table 4. Calculate the pH of the buffer that results from mixing 60.0 mL...

Homework Answers

Add Answer to:
with ice table 4. Calculate the pH of the buffer that results from mixing 60.0 mL...

Post as a guest

Earn Coins

calculate the pH of the buffer that results from mixing 51.5 mL of a 0.398 M...

Calculate the pH of the buffer that results from mixing 50.3 mL of a 0.346 M...

Calculate the pH of the buffer that results from mixing 51.9 mL of a 0.298 M...

Calculate the pH of the buffer that results from mixing 90.0 mL of 0.350 M HNO2...

Question 2: A) Calculate the pH of the buffer that results from mixing 56.1 mL of...

1. What is the pH of a buffer consisting of 0.30 M CH3COOH & 0.20 M...

Calculate the pH of a buffer made from mixing 7.6 mL of 0.259 M NaC2H3O2 and...

Calculate the pH of a buffer made from mixing 7.3 mL of 0.229 M NaC2H3O2 and...

(4) 6 pts. A buffer contains 0.500 M of Formic acid (HCHO,) and 0.500 M of...

You prepared a phosphate buffer solution by mixing 40.0 mL of 0.250 M KH_2PO_4 and 60.0...

with ice table 4. Calculate the pH of the buffer that results from mixing 60.0 mL...

Homework Answers

Add Answer to: with ice table 4. Calculate the pH of the buffer that results from mixing 60.0 mL...

Post as a guest

Earn Coins

Add Answer to:
with ice table 4. Calculate the pH of the buffer that results from mixing 60.0 mL...