What is the H O concentration in 7.1 x 10 7.2x 10-17 M b. 1.4 x 10-12 M c. 2.9 x 103M 10. M NaOH(aq) at 25 °C? (Kw...
46. What is the H30' concentration in 0.0013 M LiOH(aq) at 25 °C? (Kw = 1.01 x 10-4) a. 7.7 x 10-12 M b. 1.3 x 10-3 M c. 1.0 × 10-14 M. d. 1.0 x 10-7M e. 1.3 * 10-17 M
What is the H3O+concentration in 2.5 x 10^-3 M NaOH(aq) at 25 degrees celcius (kw = 1.0 x 10^-14)
19. What is the H,O* concentration in 0.50 M HOCH(aq)? (K. of HOCI = 3.5 x 10) a. 1.8 x 10 M b. 3.5 x 10 M c. 2.9 x 10-'M d. 1.3 x 10M e. 5.0 x 10-'M --5610-10)
The [H+] concentration in an aqueous solution at room temperature is 1.4 x 10-6M. What is the [OH-] concentration? Group of answer choices S5.6 x 10-8 M 7.1 x 10-9 M 5.2 x 10-11 M 5.6 x 10-6 M
88. What volume of 0.921 M Na2CO3 solution contains 74.0 g of NazCO3? a. 0.642 L b . 8.52 * 10 L c.0.757 L d. 7.22 x 10'L e. 1.31 L 89. An aqueous nitric acid solution has a pH of 2.15. What mass of HNO is present in 20.0 L of this solution? a. 0.11g b. 0.022 g c. 3.7 g d. 6.8 g e. 8.9 g 90. The pH of purified water (or of a neutral solution) is...
17. At 30 °C Kw = 1.471 x 10 -14. What is the [ H] and [OH-] at a neutral pH? ( 12 pt)
11. What is the pH of 6.5 x 10' M KOH(aq) at 25 °C?(K - 1.01 X 10-) a. 4.19 b. 1.54 c. 4.19 d. 9.81 e. 12.46
d) 1.7 x 10-4M ) 1.4 x 10' M 8. Find the pH of a 3.02 M HCL solution. a) 7.1 x 10M b ) 1.6 x 10-2M c)-0.48 M
17. At 30 °C Kw = 1.471 x 10 -14. What is the [ H] and [OH-] at a neutral pH? ( 12 pt)
a) b) c) d) If the Kb of a weak acid is 2.9 10*, the K, of its conjugate acid must be which of the following? 2.9.10 6.46 7.54 3.4 10- The hydronium ion concentration of a 0.50 mol/L solution of hydrocyanic acid, HCN(aq), is 1.4 x 10-5 mol/L. Use Weak Acid Info 16.1 to answer the following question. The Ka for hydrocyanic acid is: 3.9 x 10-10 1.4 x 10-5 5.0 x 10-2 6.2 x 10-10 An acetic acid-sodium...