Calculate the pH of a 1.0-L aqueous solution containing 0.40 mol of HF and 0.10 mol of HCl. (Ka for HF = 6.8 x 10?4) 0.40 1.0 0.016 2.6 1.4 x 10?3
Calculate the pH of a 1.0-L aqueous solution containing 0.40 mol of HF and 0.10 mol...
What is the pH of a 1.0 L buffer made with 0.300 mol of HF (Ka = 6.8 × 10⁻⁴) and 0.200 mol of NaF to which 0.030 mol of HCl were added?
a) Determine the pH of an aqueous solution containing 0.750 mol/L thiophenol (C6H5SH), which is a weak acid. (Ka(thiophenol) = 3.2 x 10-7 ) b)Determine the pH of an aqueous solution containing 0.750 mol/L thiophenol and 0.500 mol/L hydrochloric acid, HCl(aq).
What is the pH of a 1.0 L buffer made with 0.300 mol of HF (Ka = 6.8 × 10⁻⁴) and 0.200 mol of NaF to which 0.100 mol of NaOH were added?
A buffer is prepared by mixing 75.0 mL of 0.40 M aqueous HF and 25.0 mL of 0.80 M aqueous NaF. At 25oC, Ka = 3.5 x 10-4 for HF. SHOW WORK (a). (4 points) Calculate the pH of the buffer. (b). (4 points) Your instructor accidentally dropped the bottle containing the buffer in part (a) in a bucket of water, that initially contained 4.00 L of water. What is the pH of the resulting solution?
An aqueous solution of volume 2.30 L is prepared from 0.15 mol of KF and 0.25 mol of HF. The pH of the solution is (Ka HF = 6.8 x 10-4) A. 11.06 B. 1.97 C. 3.38 D. 12.03 E. 2.95
Consider 1.0 L of a solution which is 0.45 M HF and 0.2 M NaF (Ka for HF = 7.2 x 10-4). Assume 2 significant figures in all of the given concentrations so that you should calculate all of the following pH values to two decimal places. Calculate the pH after 0.10 mol of HCl has been added to the original solution. Assume no volume change on addition of HCl. Why do we need to convert to Kb? I know...
28. A 0.50 L buffer solution is 0.20 M in HF and 0.40 M in NaF. The Ka for HF is 1.5 x 10* Show all work for full credit. (a) Calculate the pH of the solution after the addition of 0.025 moles of solid KOH. (3 pts) (b) Calculate the pH of the solution after the addition of 0.050 moles of HCl. (3 pts)
1. Consider a 1.0 L buffer containing 0.102 mol L-1 HOCl and 0.103 mol L-1 OCl-. What is the pH of the solution after adding 2.8 x 10-3 mol of HCl? Express your answer to 2 decimal places. 2. What is the pH of a solution containing 0.179 mol L-1 HF and 0.329 mol L-1 F- ? Round your answer to 2 decimal places. 3. 15.4 mL solution of 0.100 mol L-1 NaOH is titrated using 0.150 mol L-1 HCl....
calculate the pH in a solution prepared by dissolving 0.10 mol of NH4CH3COO in 0.500Lof 0.40 M HC2H3O2. Ka=1.8*10^-5 please show work
determine the pH of an aqueous solution containing 0.650 mol/L thiophenol (C6H5SH), which is a weak acid (Ka(thiophenol)=3.2*10^-7) b. determine the pH of an aqueous solution containing 0.650 mol/L thiophenol and 0.500 mol/L hydrochloric acid, HCI(aq)