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Calculate the pH of (a) 0.10 M NH4CI(aq), (b) 0.25 M NaCH3CO2(aq), (c) 0.200 M CH3COOH(aq).
(a)
0.10 M NH4Cl(aq)
The reaction is as follows,
The pH value is calculated as shown below,
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Solved in 4 steps with 8 images
- What is the concentration of hydronium ions in (a) a solution that is 0.12 M HBRO(aq) and 0.160 M NaBrO(aq); (b) a solution that is 0.250 M CH 3 NH 2 ( aq ) and 0.150 M CH 3 NH 3 CI ( aq ); (c) a solution that is 0.160 M HBRO(aq) and 0.320 M NaBrO(aq); (d) a solution that is 0.250 M CH 3 NH 2 ( aq) and 0.250 M NaBr(aq)?Calculate the pH of (a) 0.050 M HCI(aq) and (b) 0.100 M KOH(aq).Calculate the molar concentration of H3O+ ions and the pH of the following solutions: (a) 25.0 cm3 of 0.144 M HCI(aq) was added to 25.0 cm3 of 0.125 M NaOH(aq), (b) 25.0 cm3 of 0.15 M HCI(aq) was added to 35.0 cm3 of 0.15 M KOH(aq), (c) 21.2 cm3 of 0.22 M HNO3(aq) was added to 10.0 cm3 of 0.30M NaOH(aq).
- (b) Calculate the pH of 0.1 mol dm-3 potassium hydroxide (KOH(aq)) pH =Calculate the pH, pOH, and fraction of solute protonated or deprotonated in the following aqueous solutions: (a) 0.120 M CH;CH(OH)COOH(aq) (lactic acid), (b) 1.4× 10“M CH;CH(OH) COOH(aq), (c) 0.15 M NH,CI(aq), (d) 0.15 m NaCH;CO,(aq), and (e) 0.112 m (CH;),N(aq) (trimethylamine).Calculate the molar solubility of Mg(OH)2 in 1.00 M NH4Cl (aq).
- Estimate the pH of 0.010 M NaCH3CO2(aq).Consider the titration of a 50.00 mL sample of 0.500 M hydrazoic acid, HN3, with 0.500 M NaOH (aq., 25 oC). The Ka HN3 = 4.50 x 10–4. What is the pH of the solution after 15.00 mL of NaOH has been added?Calculate the pH of a buffer containing 0.1 M HC2H3O2 (aq) mixed with 0.1 M NaC2H3O2 (aq)?
- Calculate the ph of a solution prepared by dissolving 1.00g of sodium acetate,CH^3COONa, in 50.0ml of 0.15 M acetate acid, CH^3COOH(aq)A buffer solution of volume 100 cm3 consists of 0.10 M CH3COOH(aq) and 0.10 MNaCH3CO2(aq). (a) What is its pH? (b) What is the pH after the addition of 3.3 mmol NaOH to the buffer solution? (c) What is the pH after the addition of 6.0 mmol HNO3 to the initial buffer solution?Estimate the pH and percentage of dissociation of 0.010 M CH3CH(OH)COOH(aq) (lactic acid). pKa of lactic acid is 3.86.