What is the pH of B+H if:
B is 50mL of .3M HC2H3O2
H is 100mL of .2 NH3
How would you prepare a 50mL buffer at pH = 8.90 given the following materials: 100mL volumetric flask, 100mL beaker, an unlimited supply of deionized water, 1.0M NH3, 0.50M NH4Cl, 0.15M CH3COOH, 0.10M NaOH, 0.10M HCl, a stir bar, a calibrated pH probe, a burette and a lab quest. include relevant volumes/masses, type of glassware used, significant figures and units.
If 100ml of a 0.134 M solution of HNO2 and 0.056 LiNO2 is reacted with 50ml of a 0.100 M of KOH what is the resulting pH of the solution? Ka=4.6 x 10^-4
For the following reaction: HC2H3O2 ⇔ H+ + C2H3O2– , if [HC2H3O2] = 1.0 × 10^–8 M and the pH = 3.0, what is K? A) 1.0 × 10^–2 B) 10.0 C) 1.00 × 10^–6 D) 100
Q6.1 2 Points What is the pH of the following solution? [H'] = 1.25x10-3M pH = Enter your answer here Q6.2 2 Points What is the pH of the following solution? [H'] = 5.67x10-8 M pH = Enter your answer here Q6.3 6 Points You have a solution with pH 4.17. What is the TH3O+ =
In the following reaction: HC2H3O2 ⇔ H+ + C2H3O2–, if [HC2H3O2] = 0.28 M and the pH = 5.0, what is K?
What is the pH of NH4C2H3O2 given information below? HC2H3O2⇌H+ + C2H3O2- Ka=1.76*10^-5 pKa=4.75 NH3+H2O⇌NH4+ + OH- Kb=1.79*10^-5 pKb=4.75 Assume initial concentration of NH4C2H3O2 is 0.100 M Use quadratic formula if necessary
Calculate the [H+] and the pH of a buffer solution that is 0.20 M in HC2H3O2 and contains sufficient sodium acetate to make the [C2H3O2-] equal to 0.20 M (Ka for HC2H3O2 = 1.8 x 10-5). (For scientific notation, enter your answer as follows: 1.0e-2 for 0.010)
50 ml of 0.3M HNO3 is added to 50ml of 0.3M NH3 calculate ph
please show all work and write neatly. when solving
the 50ml and 100ml please explain how to find the ph.
5. Consider the titration of 100.0 mL of 0.100 M H2NNH>/hydrazine (Ky = 3.0 x 10-6) by 0.200 M HNO3. Assume that hydrazine is monoprotic. Determine the following: a. pH before any HNO3 is added b. volume of base to reach the equivalence point c. pH when 20.0 mL of HNO, has been added d. pH when 25.0 mL of...
4. What is the pH of a 0.50 M solution of HC2H3O2?