4. Acetic acid is a weak electrolyte. Determine the fraction ionized for a 10,3 molal aqueous...
. Calculate the ionization constant for a weak acid, acetic acid (CH3COOH), that is 1.60% ionized in 0.0950 M solution. (Use the ICE table for the dissociation equation) (K. = 1.8 x 10-5 for the acetic acid)
When a weak acid solution is diluted by half, the fraction of ionized weak acid increases. Using the reaction quotient, demonstrate this effect and explain why the increase in ionization occurs.
When a weak acid solution is diluted by half, the fraction of ionized weak acid increases. Using the reaction quotient, demonstrate this effect and explain why the increase in ionization occurs.
QUESTION 34 Which aqueous solution will freeze at the lowest temperature? a. 0.10m acetic acid (weak electrolyte) b. 0.020m Li2SO4 (strong electrolyte) c. 0.05m NaNO3 (strong electrolyte) d. pure water O .0.20m glucose (non-ionizing sugar)
An aqueous solution is made with the salt obtained from combining the weak acid acetic acid, CH3CO2H, and the weak base methylamine, CH2NH2. Is the solution acidic, basic, or neutral? Ka=1.8×10−5 and Kb=4.4×10−4
colligative properties: freezing point depression. Gen chem 2
HINKI Acetic acid is known as a weak acid (electrolyte) when it is dissolved in water. A solution was prepared by dissolving acetic acid in cyclohexane to yield a concentration of 1.0 molukg. The freezing point depression of the solution was determined to be 13.2 °C. What is the van't Hoff factor for acetic acid dissolved in cyclohexane? Is acetic acid an electrolyte when it is dissolved in cyclohexane? Explain. Kre20 °C/m...
30 QUESTIONS FOR WEAK ACIDS & BASES EXP. 1. Examine the data for acetic acid and discuss the effects of dilution on the percent dissociation of this weak acid. a. What immediate effect did dilution have on Q? b. Did K change? Should it have changed? Why or why not? c. Which way did any changes cause the equilibrium to shift? Why? d. How did the shift affect the percent dissociation? Should the effects of dilution on % dissociation for...
6. A0.68 M solution of a weak acid HA is 0.35 % ionized. What are the H, A, and HA concentrations at equilibrium? What is K? 7. The K, for glyoxylic acid, HC HO, is 6.6 x 104. What is the pH of a 0.45 M solution of the acid? What is the % ionization of the acid at this concentration?
Which of the following compounds is a weak electrolyte? CH3COOH (acetic acid) NaCl HCl C6H1206 (glucose)
Which of these compounds is a weak electrolyte? НС! CH3COOH (acetic acid) O CaH1206 (glucose) O O2 NaCl