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54) Ir the pk of HICHO, is 3.62 and the pH of an HICHO/NACHO, solution is...
That's all the info I have. I'm confused and need help.
4) If the pK, of HCHO, is 3.62 and the pH of an HCHO,/NaCHO, solution is 3.89, is the [HCHO2] 35, or> the [ NaCHO, 1?
Please help with 16 and 17
16. (10 pts) The pKb of NH, is 1.76×10-5. a) Determine the pH of a solution of 0.200 M NHs(aq) b) Calculate the pK, for NH.CI. c) Determine the pH of a solution of 0.200 M NH.C(aą). d) Determine the pH of a buffer solution made from 500.0 mL each of 0.200 M NH, and 0.200 M NH4CI 17. (pts) Determine the pH of a buffer made from 65.0 mL of 0.15 M HCHO,...
If pH = 3.62 for a 0.100M solution of a weak acid, what is the Ka value for that acid?
QUESTION 1 A solution will be basic if: O pH > 7 O pH = 7 O pH < 7
< Question 19 of 40 > What is the pH of a buffer that consists of 0.200 M HCOOH and 0.540 M HCOONa? The pK, of formic acid is 3.74. pH
Question 4 of 65 > What is the pH of an aqueous solution with a hydroxide ion concentration of 3.20 x 10-4 M? O 14.5 O 3.49 10.5 0 -0.505
Find the pH of a 0.035 M solution of HF. HF has a pK, of 3.17. (Solve the quadratic here).
Question 14 of 25 > Determine the pH of a solution that is 0.00261 M HCl and 0.0348 M HCIO,. The K, of HCIO, is 1.1 x 10-2. pH =
Calculate the pH of a 0.292 M solution of ethylenediamine (H2NCH2CH, NH,). The pK values for the acidic form of ethylenediamine (H NCH,CH2NH) are 6.848 (pKal) and 9.928 (pKa2). pH 10.16 Calculate the concentration of each form of ethylenediamine in this solution at equilibrium 0.294 H2NCH2CH2NH, ] = М 1.44 x10-4 [H2NCH2CH2NH = -5 [HNCH2CH2NH 3.51 x10 MA M
Calculate the pH of a 0.214 M solution of ethylenediamine (H2NCH2CH2NH2). The pK, values for the acidic form of ethylenediamine (H3NCH-CH2NHs') are 6.848 (pKa) and 9.928 (pka). Number Calculate the concentration of each form of ethylenediamine in this solution at equilibrium. Number H,NCH,CH,NH, Number H,NCH,CH,NH, l- MI Number