What is the [CH3COO–]/[CH3COOH] ratio necessary to make a buffer solution with a pH of 4.34? Ka = 1.8 × 10-5 for CH3COOH.
What is the [CH3COO–]/[CH3COOH] ratio necessary to make a buffer solution with a pH of 4.34?...
What must be the concentration of CH3COO- ion in 0.40 M CH3COOH to produce a buffer solution with pH = 4.80? (Ka CH3COOH = 1.8 × 10-5)
6. If the pH of a CH3COOH/CH3COO- buffer system is 4.5, what is the acetate concentration if the acetic acid concentration is 0.44 and the dissociation constant, Ka, of CH3COOH is 1.6 x 10-8 ?
You need to make 1.0 L of a buffer solution having pH = 4.30 from CH3COOH and NaCH3COO. What concentrations of CH3COOH and NaCH3COO will you have to prepare? Given: Ka for CH3COOH = 1.8 x 10-5. (Please explain step-by-step - thank you.)
what concentrations of CH3COO- and CH3COOH of those
below would give a buffer with a pH of 4.11 (pKa=
CH3COOH=4.84)
Br What concentrations of [CH3COO 1 and [CH1COOH1 of those below would give a buffer with a pH of 4.11? (pKa CH3COOH = 4.84). 10 a) (CH3COO]-0.15 M, [CH3COOH] = 0.10 M b) [CH3COO]-0.10 M, [CH3COOH] = 0.53 M c) [CH3COO]-0.46 M, [CH3COOH]= 0.10 M d) [CH3COO]- 0.23 M, [CH3COOH] = 0.10 M 14
22) What is the [CH3CO2-1/[CH3CO2H] ratio necessary to make a buffer solution with a pH of 4.79? Ka = 1.78 x 10-5 for CH3CO2H. A) 0.94:1 B) 2.0:1 C) 1.1:1 D) 0.50:1 23) Which is the best acid to use in the preparation of a buffer with pH = 3.3? A) HNO3 B) HOI (Ka = 2.0 x 10-11) C) HNO2 (Ka = 4.5 x 104) D) HIO3 ((Ka = 1.7 x 10-1) 24) What is the percent dissociation of...
14) 14) Calculate the mole ratio of CH3COONa to CH3COOH required to make a buffer with pH of 4.83. Ka of CH3COOH is 1.8 x 10-5. A) 3.00 B) 0.122 C) 10.0 D) 1.22 E) 0.75
What is the [CH3CO2-]/[CH3CO2H] ratio necessary to make a buffer solution with a pH of 4.44? The Ka for acetic acid is 1.76 x 10^-5. The answer choices are A) .39:1 B) .49:1 C) 1.07:1 D) 1.33:1 E) 4.44:1 It is NOT A according to my professor counting that wrong on the exam, I just want the answer and how it works please!
Calculate the pH of a buffer solution containing 0.100 M CH3COOH and 0.100 M CH3COONa ; Ka of CH3COOH = 1.8 x 10-5
What is the pH, amount of CH3COO- and CH3COOH in mol of a buffer synthesized from 10mL of 0.1M CH3COONa and 2.0mL of 0.1M HCl?
5. Calculate the grams of NaCH3COO required for 100.0 mL of 0.20 M CH3COOH solution to achieve a pH of 4.40. (Assume no volume change.) K = 1.8 x 10-5 6. What is the pH of 100.0 mL of buffer consisting of 0.20 M CH3COOH/0.20 M NaCH3COO after 10.0 mL of 0.20 M HC1 was added into the solution ? Kg = 1.8 x 10-5 7. The pH of a sodium acetate-acetic acid buffer is 4.80. Calculate the ratio of...