.95 points 14 attempts left Check my work Enter your answer in the provided box. How...
Check my work Enter your answer in the provided box. How many milliliters of 1.17 M NaOH must be added to 175 mL of 0.14 M NaH, PO4 to make a buffer solution with a pH of 6.70? mL
Question 11 of 15) value 1.00 points 3 attempts left Check my work Enter your answer in the provided box. solution of NaOH. Calculate the pH of a 1.0 x 10M pH= Question 14 (of 15) value: 1.00 points 3 attempts left Check my work Enter your answer in the provided box. Calculate the pH of a solution with a H2O concentration of: 1.8 x 10-6 M
Enter your answer in the provided box. How many milliliters of 1.98 M NaOH must be added to 2.00 x 102mL of 0.20 M NaH,PO, to make a buffer solution with a pH of 6.90? mL 12 and available
3 attempts left Check my work Enter your answer in the provided box. ints The pH of a bicarbonate-carbonic acid buffer is 7.06. Calculate the ratio of the concentration of carbonic acid (H2CO3) to that of the bicarbonate ion (HCO3-). (Kg, of carbonic acid is 4.2 x 10-7.) eBook [H,C03] [HCO3-] 00 3 attempts left Check my work Enter your answer in the provided box. 01 ints Calculate the pH at the equivalence point in the titration of 50.0 mL...
value 1.00 points 1 attempts left Check my work Enter your answer in the provided box. A buffer solution is prepared in such a way that the concentration of propanoic acid is 1.92 x 10 Mand the concentration of sodium propanoate is 1.51 x 10° M. If the buffer equilibrium is described by CH3COOH(aq) + H20(1) = H2O*(aq) + CH3C00 (aq) Gul propanoic acid propanoate ion with K = 1.34 x 105 calculate the pH of the solution. pH =...
2 attempts left Check my work Enter your answer in the provided box. If 30.0 mL of 0.150 M CaCl, is added to 36.0 mL of 0.100 M AgNO,, what is the mass of the AgCI precipitate? 0.22
help plz need explanation too, thank you:) 1 attempts left Check my work Enter your answer in the provided box. A buffer that contains 0.416 M base, B, and 0.319 M of its conjugate acid, BH, has a pH of 8.98. What is the pH after 0.0020 mol of HCl is added to 0.250 L of this solution? pH- 9.19
3 attempts left Check my work Enter your answer in the provided box. Calculate the pOH of an aqueous solution of 0.062 M NaOH at 25°C. РОН
10 attempts left Check my work Enter your answer in the provided box. Calculate the pH at the equivalence point in the titration of 30.0 mL of 0.200 M methylamine (къ — 4.4 х 10-4) with 0.320 M HCI. pH
10 attempts left Check my work Enter your answer in the provided box. Calculate the pH at the equivalence point in the titration of 40.0 mL of 0.175 M methylamine (K) = 4.4 x 10-4) with 0.315 M HCI. pH =