What concentration (in M) of NaNO2 is required to make [H3O+ ] = 3.9 ✕ 10−4 M in a 0.296 M solution of HNO2? (Assume Kw = 1.01 ✕ 10−14.)
What concentration (in M) of NaNO2 is required to make [H3O+ ] = 3.9 ✕ 10−4...
What concentration (in M) of NaF is required to make [H3O+ ] = 3.2 ✕ 10−4M in a 0.306 M solution of HF? (Assume Kw = 1.01 ✕ 10−14.) NOTE: 0.625 was the incorrect answer
What is [H3O+] in a solution of 0.075 M HNO2 and 0.030 M NaNO2? The pK, of HNO2 is 4.35. 1.8 x 105M 6.0 x 10-M 1.1 x 10-4M 2.0 x 10-4M
Min a 0.299 M solution of HNO,? (Assume - 1.01 x 10-4.) What concentration (in M) of NaNO, is required to make [HO] - 3.1x10 9.70-12 X M
Calculate the concentration of OH- in a solution that contains 3.9 × 10-4 mol L-1 H3O+ at 25 °C. Also identify the solution as acidic, basic, or neutral. Group of answer choices 2.7 × 10-2 mol L-1, acidic 2.7 × 10-2 mol L-1, basic 2.6 × 10-11 mol L-1, basic 2.6 × 10-11 mol L-1, acidic 3.9 × 10-4 mol L-1, neutral
16. Determine the [H3O+] concentration in a 0.169 M NaOH solution. A) 0.338 M B ) 0.169 M C) 5.92 x 10-14 M. D) 2.96 x 10-14 M. E) 0.298 M B. p 17. A solution is prepared by adding 100 mL of 0.4M HNO2 to 100 mL of 0.5 M KNO2. What is the best answer to the solution pH? A. pH >pka B. pH <pka C. It is a buffer, pH = pka D. pH = pKb E....
The concentration of H3O+ in a solution is 6 × 10–4 M at 25°C. What is its hydroxide-ion concentration? 1 x 10-10M 3 x 10-10M 2 x 10-11M 6 x 10-4M 2 x 10-10M
What is the pH of a solution prepared to 0.040 M NaNO2. Ka HNO2 = 7.1 x 10-4
A 0.14 M HNO2 solution is 5.7% ionized. Calculate the H3O+ ion concentration.
what is the concentration of H3O+ in a solution with a concentration of OH- = (1.7x10^-4) M?
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