5. What is the pH of 50 mL of a 1.0 mol/L methylamine (CH3NH2) solution 2...
What is the pH of 50 mL of a 1.0 mol/L methylamine (CH3NH2) solution after the addition of 50 mL of a 0.5 mol/L solution of HCl? 5. What is the pH of 50 mL of a 1.0 mol/L methylamine (CH3NH2) solution after the addition of 50 mL of a 0.5 mol/L solution of HCI?
5. What is the pH of 50 mL of a 1.0 mol/L methylamine (CH3NH2) solution after the addition of 50 mL of a 0.5 mol/L solution of HCI? Your angwer
4. What is the pH of 80 mL of a 0.4 mol/l NaOH solution after the addition 2 points of 20 mL of a 0.5 mol/L solution of HCI? Your answer
What is the pH of 80 mL of a 0.4 mol/L NaOH solution after the addition of 20 mL of a 0.5 mol/L solution of HCl? 4. What is the pH of 80 mL of a 0.4 mol/L NaOH solution after the addition of 20 mL of a 0.5 mol/L solution of HCI?
Maps 1. What is the pH of a 0.35 mol/L solution of acetylsalicylic acid (C9H804)? 2 points Your answer 2. What is the pH of a 1.50 mol/L solution of ammonium chloride (NH4Cl)? 2 points Your answer 4 points 3. What is the pH of the buffer resulting of the mixing of 34.4 g of sodium dihydrogen phosphate (NaH2PO4) and 48.5 g of sodium hydrogen phosphate (Na2HPO4) in 2.5 L of distilled water? Your answer 4. What is the pH...
What is the pH of the resulting solution if 95 mL of 0.514 M methylamine, CH3NH2, is added to 115 mL of 0.85 M HCI? Assume that the volumes of the solutions are additive. K = 2.70 x 10 for CH NH. CH:NH, (aq) + H(aq) = CH NH3(aq) | CHINH, H CHỌNH What is the pH of a solution prepared by mixing 75 ml of 0.38 M acetic acid and 50 mL of 0.58 M sodium acetate are mixed....
2.0 mol of methylamine, CH3NH2, are dissolved into 1.0 L of water. Given that its pKb is 3.38, compose a balanced chemical reaction (equation) for the dissociation, and calculate the fraction of CH3NH2 that dissociates in water (i.e., forms CH3NH3+) and the pH when the dissociation approaches equilibrium.
A buffer solution contains 0.359 M CH3NH2Cl and 0.331 M CH3NH2 (methylamine). Determine the pH change when 0.090 mol HCIO4 is added to 1.00 L of the buffer. pH after addition - pH before addition - pH change A buffer solution contains 0.305 M NaHCO3 and 0.205 M Na2CO3. Determine the pH change when 0.061 mol HNO3 is added to 1.00 L of the buffer. pH change
What is the Kb for methylamine, CH3NH2, if a solution prepared by dissolved 0.82 mol of methylamine in 425 mL of H2O has a pH of 12.46? (Ans: 4.4 x 10-4) A 0.100 M solution of formic acid, HCOOH, is 4.0% dissociated. Calculate Ka for formic acid. (Ans: 1.7 x 10-4)
10) The pH of a solution prepared by dissolving 0.550 mol of solid methylamine hydrochloride (CH3NH3Cl) in 1.00 L of 1.35 M methylamine (CH3NH2) is Kb for methylamine is 4.40 x 10-4. (Assume the final volume is 1.00 L.) The A) 11.03 B) 2.97 C) 3.75 D) 10.64 E) 10.25 11) A 25.0 mL sample of 0.723 M HCIO4 is titrated with a 0.27 M KOH solution. The H30+ concentration after the addition of 80.0 ml of KOH is M....