11. (4 points) For the acid/base reaction a. What is the acid? b. What is the ba

Question

11. (4 points) For the acid/base reaction a. What is the acid? b. What is the base? c. What is the conjugate base? d. What is the conjugate acid? 12. The pH of a solution is measured to be 12.582. a. (6 points) Find the [oH-l b. (2 points) Is this solution acidic, basic, or neutral? ACIDIC BASIC NEUTRA: L 13. (6 points) what volume of a 27.8% v/v solution of ethanol in water (both are liquids) would be required to make a total volume of 6.70L solution with a concentration of 5.00% vlv? 14. (3 points) Write the conjugate acid to the following chemicals Bro NH3 NO

Explanation / Answer

11. a. acid = H2CO3

b. base = H2O

c. conjugate base = HCO3-

d. conjugate acid = H3O+

12. a. pOH = 14 - pH = 14 - 12.582 = 14.180

pOH = -log[OH-]

[OH-] = 0.0382

b. Solution is basic

13. Volume of 27.8%(v/v) solution needed = 5% x 67 L/27.8% = 12.05 L

14. Conjugate acid of,

NO3- = HNO3

NH3 = NH4+

BrO- = HBrO

15. a. All of it dissolves

b. m/v% = 2.91/0.100 = 29.1 g/L

c. molarity of solution = 1.29/62 x 0.1 = 0.47 M

16. Conjugate base of,

H3PO3 = H2PO3-

HClO = ClO-

HSO4- = SO4^2-

17. [H+] = 4.9 x 10^-9 M

pH = -log[H+] = 8.31

[OH-] = 1 x 10^-14/4.9 x 10^-9 = 2.04 x 10^-6 M

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.