Homework Answers
Correct Answer :- 3.55
Feel free to ask any doubt
.
Add Answer to:
27. What is the pH of an aqueous solution that contains 0.35 M of lactic acid,...
a) calculate the ph of a .20 M aqueous solution of lactic acid CH3CH(OH)COOH, the value...
a) calculate the ph of a .20 M aqueous solution of lactic acid CH3CH(OH)COOH, the value of ka is 1.4 x 10^-4 M and it is at 25c b) what is the molarity of unreacted lactic acid in the solution?
What are the concentrations of all the solute species in 1.05 M lactic acid, HC3H5O2? What...
What are the concentrations of all the solute species in 1.05 M lactic acid, HC3H5O2? What is the pH of the solution? This acid has a Ka = 1.4 × 10-4.
QUESTION 11 Calculate the pH for an aqueous solution of acid that contains 2.15 x 10-3...
QUESTION 11 Calculate the pH for an aqueous solution of acid that contains 2.15 x 10-3 M H30 at equilibrium. A. 4.65x 10-12 B. 2.15 x 10-3 11.33 Oc OD. 2.67 QUESTION 12 Calculate the pH for an aqueous solution that contains 2.15 x 10-3 M OH at 25 °C A. 4.65 x 10-11 B.2.15x 10-4 O c.3.67 OD. 11.33
2. (a) Determine the pH of 0.10 M lactic acid (HC3HSO3) (b) What is the pH of a buffer that is 0.12 M. lactic acid and...
2. (a) Determine the pH of 0.10 M lactic acid (HC3HSO3) (b) What is the pH of a buffer that is 0.12 M. lactic acid and 0.10 M sodium lactate (NaC3H5O3)? For lactic acid. Ka = 1.4 x 10-4. (10)
The pH of a 0.60 M aqueous solution of an unknown acid is 2.98. What is...
The pH of a 0.60 M aqueous solution of an unknown acid is 2.98. What is the value of Ka for the acid? A. 0.22 B. 1.8 x 10-5 C. 6.0 x 10-5 D. none of the above O E. 1.8 x 10-4
8. Lactic acid has a pKa of 3.08. What is the approximate degree of dissociation of a 0.35 M solution of lactic acid? A...
8. Lactic acid has a pKa of 3.08. What is the approximate degree of dissociation of a 0.35 M solution of lactic acid? A. 1.1% B. 2.2% C. 4.8% D. 14% E. None of these choices are correct.
Lactic acid has one acidic proton . What is the pH of a 0.10 M solution...
Lactic acid has one acidic proton . What is the pH of a 0.10 M solution of this acid? Ka =1.4 x10-4 for lactic acid ????/
8. (4 pts) What is the pH of a 0.35 M solution of aqueous ammonia, NH?...
8. (4 pts) What is the pH of a 0.35 M solution of aqueous ammonia, NH? (Ko for ammonia is 1.8 x 10). L 9. (5 pts) The pH of a 0.18 M solution of a weak acid, HA, is 2.85. What would be the percent ionization in a 1.80 M solution of this acid?
Please show work 6. Determine the pH of a 0.35 M aqueous solution of (methylamine). The...
Please show work
6. Determine the pH of a 0.35 M aqueous solution of (methylamine). The kb of methylamine is 4.4 x 10-4 1. 10 2. 3.8 3. 12 4. 1.9 _-7. The solubility of manganese(l) hydroxide (Mn(OH)2) is 2.2 x 10-5 M. What is the Ksp of Mn(OH)27 1. 1.1 x 10-14 2, 4.3×10-14 3. 2.1 x 10-14 4, 4.8×10-10 8. For which salt should the aqueous solubility be most sensitive to pH? 1. CaF2 2. Ca(NO3)2 3. CaCI12...
3. What is the pH of a buffer solution that is 0.266 M in lactic acid...
3. What is the pH of a buffer solution that is 0.266 M in lactic acid and 0.14 M in sodium lactate? The K, of lactic acid is 1.68 x 10-4.
QUESTION 11 Calculate the pH for an aqueous solution of acid that contains 2.15 x 10-3 M H30 at equilibrium. A. 4.65x 10-12 B. 2.15 x 10-3 11.33 Oc OD. 2.67 QUESTION 12 Calculate the pH for an aqueous solution that contains 2.15 x 10-3 M OH at 25 °C A. 4.65 x 10-11 B.2.15x 10-4 O c.3.67 OD. 11.33
2. (a) Determine the pH of 0.10 M lactic acid (HC3HSO3) (b) What is the pH of a buffer that is 0.12 M. lactic acid and 0.10 M sodium lactate (NaC3H5O3)? For lactic acid. Ka = 1.4 x 10-4. (10)
The pH of a 0.60 M aqueous solution of an unknown acid is 2.98. What is the value of Ka for the acid? A. 0.22 B. 1.8 x 10-5 C. 6.0 x 10-5 D. none of the above O E. 1.8 x 10-4
8. Lactic acid has a pKa of 3.08. What is the approximate degree of dissociation of a 0.35 M solution of lactic acid? A. 1.1% B. 2.2% C. 4.8% D. 14% E. None of these choices are correct.
8. (4 pts) What is the pH of a 0.35 M solution of aqueous ammonia, NH? (Ko for ammonia is 1.8 x 10). L 9. (5 pts) The pH of a 0.18 M solution of a weak acid, HA, is 2.85. What would be the percent ionization in a 1.80 M solution of this acid?
Please show work
6. Determine the pH of a 0.35 M aqueous solution of (methylamine). The kb of methylamine is 4.4 x 10-4 1. 10 2. 3.8 3. 12 4. 1.9 _-7. The solubility of manganese(l) hydroxide (Mn(OH)2) is 2.2 x 10-5 M. What is the Ksp of Mn(OH)27 1. 1.1 x 10-14 2, 4.3×10-14 3. 2.1 x 10-14 4, 4.8×10-10 8. For which salt should the aqueous solubility be most sensitive to pH? 1. CaF2 2. Ca(NO3)2 3. CaCI12...
3. What is the pH of a buffer solution that is 0.266 M in lactic acid and 0.14 M in sodium lactate? The K, of lactic acid is 1.68 x 10-4.
Most questions answered within 3 hours.
-
Mr. and Mrs. Brown report taxable income of $130,000 in 2018. In
addition, they report the...
asked 46 minutes ago -
You capture data by having 8 people fill in 30 small dots on a
piece of...
asked 4 hours ago -
What are the z-values such that 70% of the area lies in the
middle of the...
asked 6 hours ago -
You borrow $29,500 to purchase a brand new car. The interest
rate is 6%, and the...
asked 6 hours ago -
The amount of time it takes an asteroid, whose average distance
from the Sun is 4.70...
asked 6 hours ago -
A 0.289 kg mass slides on a frictionless floor with a speed of
1.34 m/s. The...
asked 6 hours ago -
15.A box contains five red balls, three green balls, and two
yellow balls. Suppose you select...
asked 9 hours ago -
Assume you are given the following for Stackelberg industries:
Return on Assets (ROA) = 8%
Debt...
asked 7 hours ago -
an engineer proposes to use mmWave in 5G network to
increase data rate.
What are the...
asked 7 hours ago -
Explain the idea behind using SEMIJOIN in distributed
query processing.
asked 7 hours ago -
why
is context important in selecting and applying guidelines and
principles for interface design?
illustrate your...
asked 7 hours ago -
In a certain board game, a player rolls two fair six-sided dice
until the player rolls...
asked 9 hours ago