21) The concentration of C5H NHis 1.8 x 10 Min a 0.25 M C3H3N solution at...
20) Equal volumes of 0.2 M acetic acid, CH3COOH (K4 = 1.8 x 10 ) and 0.2 M aniline, C6H5NH2 (K) = 3.8 x 10") are mixed at 25°C. a. Which aqueous compound will have the highest concentration when equilibrium is established in the final solution? Justify your answer. b. Is the final solution acidic or basic? Justify your answer.
alculate the pH of a 0.543 M NH, solution. NH, has a Ky = 1.8 x 10 pH = Each value represents a different aqueous solution at 25 °C. Classify each solution as acidic, basic, or neutral. Acidic Basic Neutral 0 pH = 4.59 pH=9.54 (H+) = 10x 10-7 pOH = 11.67 pOH = 4.94 (H+) - 3.7x 10-2 [H*) = 6.8 x 10- pOH = 7.00 [OH-] = 2.2 x 10- [OH-] = 5,5 x 10" Answer Bank Vhat...
please answer both questions QUESTION 20 The concentration of H30 in a solution is 7 x 10 Mat 25 °C. What is its hydroxide ion concentration? а. 1 x 10-10 M b. 3x 10-10 м 2* 10 10 M d. 1 x 10-1 M X 7x 104 M QUESTION 21 A solution is 0.012 Min Pb(NO3)2 and 0.20 Min Sr(NO3)2. Solid Na2SO4 is added until a precipitate just begins to form. The and the concentration of sulfate ion at this...
If a solution of acetic acid (K = 1.8 x 10-5) has a pH of 2.90, calculate the original (initial) concentration of acetic acid (HC,H,O) (Report your answer in 1 sig. fig. Example: .03942 would be reported as 0.04) Be sure to include a zero in front of the decimal point. QUESTION 37 5 points Save Answer The K, for benzoic acid C.H.COOH is 6.3 x 106. Calculate the equilibrium concentrations of H,0* in the solution if the initial concentration...
REterencES Calculate the OH concentration and pH of a 1.8 x 10 M aqueous solution of sodium cyanide, NaCN. Finally, calculate the CN concentration. (Ka(HCN)= 4.9 x 10-10) M [Hol pH [CN )-
What is the pH of a 0.25 M solution of NaCH3COO (Ka (CH3COOH) = 1.8 * 10-5)? Instruction: Please have two decimal places for your answer
Calculate the concentration of H3O⁺ in a solution that contains 5.5 × 10^-5 M OH⁻ at 25°C. Identify the solution as acidic, basic, or neutral. Answer choice are a- 1.8 × 10^-10 M, acidic b- 1.8 × 10^-10 M, basic c- 9.2 × 10^-1 M, basic d- 9.2 × 10^-1 M, acidic e- 5.5 × 10^-10 M, neutral
NHz is a weak base (K) = 1.8 x 10 %) and so the salt NHCl acts as a weak acid. What is the pH of a solution that is 0.043 M in NH CI at 25°C? pH =
12. Given that Ka = 1.8 x 10- for acetic acid. in order for an acetic acid solution to have a pH of 3.50, its molar concentration must be a. 5.7 x 10-3 M b. 5.6 x 10-3M c. 3.2 x 10-4M d. 2.3 x 10-M 13. If enough base is added to a solution to cause the pH to increase from 7.50 to 8.50, this means that А a. [OH-] increases by a factor of 10 b. [H'] increases...
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