7. Use the systematic approach to equilibrium problems to calculate the pH of the following solutions. Be sure to state and justify any assumptions you make in solving the problems.
a. 0.050 M HClO4
b. 1.00 × 10–7 M HCl
c. 0.025 M HClO
d. 0.010 M HCOOH
e. 0.050 M Ba(OH)2
f. 0.010 M C5H5N
7. Use the systematic approach to equilibrium problems to calculate the pH of the following solutions....
Use the systematic approach to solving equilibrium problems to calculate the pH of 0.1 M solutions of (a) malonic acid, H2A; (b) sodium hydrogenmalonate, NaHA; and (c) sodium malonate, Na2A. Be sure to state and justify any assumptions you make in solving the problems.
Calculate the pH of the following acid–base buffers. Be sure to state and justify any assumptions you make in solving the problems. a. 100.0 mL of 0.025 M formic acid and 0.015 M sodium formate b. 50.00 mL of 0.12 M NH3 and 3.50 mL of 1.0 M HCl c. 5.00 g of Na2CO3 and 5.00 g of NaHCO3 diluted to 0.100 L 4. (10 Points) Calculate the pH of the buffers in problem 3 after adding 5.0 mL of...
Calculate the pH of the following acid–base buffers. Be sure to state and justify any assumptions you make in solving the problems. a. 100.0 mL of 0.025 M formic acid and 0.015 M sodium formate b. 50.00 mL of 0.12 M NH3 and 3.50 mL of 1.0 M HCl c. 5.00 g of Na2CO3 and 5.00 g of NaHCO3 diluted to 0.100 L
Estimate pH value of the following solutions in pure water: 1. 0.02 M HCl 2. 0.005 M Ba(OH)2 3. 0.00005 M H2SO4 4. 10-9 M HClO4 5. 0.030 M NaCl 6. 0.01 M NaOH 7. 0.01% ethanol 8. 10^-10 M KOH
1. Calculate the pH of the following solutions: (pH = -log (H*]) (a) 0.050 M formic acid, HCOOH, K=1.78x10-4 (b) 0.050 M hydrocyanic acid, K.-4.8x10-10 2. How would you make a 0.00025 M solution of HCI starting with 12 M solution of HCI? 3. Does the Ka for acetic acid change (within experimental tolerance) with changes in concentration? 4. What is Le Chatelier's principle? 5. What effect does the addition of acetate ions to a solution of acetic acid have...
Calculate the pH of the following solutions: Part A: 0.075 M HClO4 Express your answer using two decimal places. Part B: 4.4 M HCl Express your answer using two decimal places. Part C: 1.4 M KOH Express your answer using two decimal places. Part D: 0.015 M Ba(OH)2 Express your answer using two decimal places.
QUESTIONS 1. Calculate the pH of the following solutions: (pH = -log[H]) (a) 0.050 M formic acid, HCOOH. K=1.78x104 (b) 0.050 M hydrocyanic acid, K.-4.8x10-10 2. How would you make a 0.00025 M solution of HCI starting with 12 M solution of HCI? 3. Does the K, for acetic acid change (within experimental tolerance) with changes in concentration? 4. What is Le Chatelier's principle? 5. What effect does the addition of acetate ions to a solution of acetic acid have...
Calculate the pH of the following solutions: a) Calculate the pH of the solution obtained by mixing 20.00 mL of 1.00 M HCl with water until a volume of 2000 mL. b) Calculate the pH by mixing 5.00 mmol of HNO3 with 5.00 mmol of KOH, in a total volume of 1000 mL of solution c) Calculate the pH by mixing 5.00 mmol of C6H5COOH with 3.00 mmol NaOH, and bring up to volume 300 mL. d) Calculate the pH...
calculate the ph of the following solutions there is 3 different problems so make sure to click on the picture! thank you f) 0.35 M CH3CH2NH2 g) 0.35 M NaHSO4 h) 0.35 M CH3CH2NH3B
Be sure to answer all parts. Calculate the pOH and pH of the following aqueous solutions at 25 ° C: (a) 0.0775 M LiOH pH = pOH = (b) 0.0441 M Ba(OH)2 pH = pOH = (c) 0.25 M NaOH pH = pOH