If the Ka for acetic acid is 1.8x10^-5, what is the Kb for acetate ion? a) 5.6x10^-4 b) 5.6x10^-10 c) 5.6x10^+18 d) 1.8x10^-19

Ka for nitrouse acid ,HNO2 is 4.5 x10^-4.what is the value of Kb for the nitrite ion NO2^-

At 55°C aniline, CH NH₂, has a Kb = 8.2 *10-1⁰ What is the pH of a 0.035M solution in water? (Please type answer)

Using the data table write th formula of the conjugate base that has the weakest base?    Acid    1)HOAc   Ka=1.8x10-5            2) HCHO2  Ka=1.8x10-4          3) HCIO       Ka=3.0x10-8           4) HF           Ka= 6.8x10-4

The pH of a chemical solution is given by the formula pH = - log 10 H*], where H is the concentration of hydrogen ions in moles per liter. Values of pH range from 0 (acidic) to 14 (alkaline). Answer parts (a) through (f). (a) What is the pH of a solution for which H* is 0.001? pH = (Type an integer or a decimal.) %3D (b) What is the pH of a solution for which H is 0.0001? pH = (Type an integer or a decimal.) (c) What is the pH of a solution for which H is 0.00001? pH = (Type an integer or a decimal.) (d) What happens to pH as the hydrogen ion concentration decreases? O pH decreases O pH increases (e) Determine the hvdrogen ion concentration of a solution with pH = 3.4.

Which acid is the weakest? acetic acid CH3COOH (K₂ = 1.8 x 10-5) hydrogen sulfate ion HSO4 (K₂ = 1.2 × 10-2) carbonic acid H₂CO3 (K₂ = 4.3 x 10-7) ammonium ion NH4+ (K₂ = 5.6 × 10-10) hydrocyanic acid HCN (K₂ = 4.9 × 10-10)

A 0.013 M solution of a weak acid (HA) has a pH of 4.79. What is the Ka of the acid? Answer in scientific notation.

The Ka of a weak acid is shown below. The Kb of its conjugate base partner must be which of the following? Ka=1.6x 10-8 1- 6.20 2- 7.80 3- 6.3x 10-7 4- 6.8x 10-7 5- 1.0x 1014

After calculating the PH of a .66M solution of NH3 Ki for NH3 = 1.9x10-5 and PH is 11.5 Question: Calculate the PH of a solution that is .66 moles I. NH3 and .5 moles in NH4Cl Ki for NH3= 1.9x10-5

What is the K for a base if a (2.0x10^-1) M solution has a pH of (1.18x10^1)? Report your answer to 2 sig figs. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: x10 don't give Handwritten answer Answer