A buffer system contains 0.88 M cyanate and 0.93 M cyanic acid. What is its pH?
A buffer system contains 0.88 M cyanate and 0.93 M cyanic acid. What is its pH?
Calculate the pH of a buffer solution prepared by dissolving 19.50 g of sodium cyanate NaCNO (65.01g/mol) in 1.00 M cyanic acid (HCNO) to a final volume of 1.00 liter of solution. Ka(HCNO) = 3.50 x 10-4
What is the pH of a buffer system that contains 0.190 M hydrocyanic acid (HCN) and 0.280 M sodium cyanide (NaCN)? The pK_a of hydrocyanic acid is 9.31. Express your answer using two decimal places.
A buffer system contains 0.51 M ammonia and 0.39 M ammonium chloride. What is its pH?
A buffer that contains 0.550 M base, B, and 0.229 M of its conjugate acid, BH+, has a pH of 8.90. What is the pH after 0.0020 mol of HCl is added to 0.250 L of this solution?
A formic acid buffer solution contains 0.22 M HCOOH and 0.24 M HCOO. The pKa of formic acid is 3.75. What is the pH of the buffer? Answer:
A buffer that contains 0.470 M base, B, and 0.343 M of its conjugate acid, BH, has a pH of 9.13. What is the pH after 0.0020 mol of HCl is added to 0.250 L of this solution? pH =
A buffer that contains 1.05 M base, B, and 0.750 M of its conjugate acid, BH+, has a pH of 9.250. What is the pH after 0.0055 mol of HCl is added to 0.400 L of this solution?
A buffer that contains 1.00 M base, B, and 0.750 M of its conjugate acid, BH^+, has a pH of 9.200. What is the pH after 0.0050 mol of HCl is added to 0.450 L of this solution?
A buffer solution contains .267 m acetic acid and .295 m sodium acetate. Calculate the ph of this buffer. If .225 moles of HBr are added to 1 L of the buffer, what is the pH of the resulting solution, assuming volume does not change? please show work and post the right answer
A buffer solution contains 2.15 M hydrocyanic acid and 0.60 M cyanide ion. What is the pH of the buffer? (The Ka of hydrocyanic acid is 6.2x10-10.) 9.76