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Chemistry
- What is the pOH of a solution of 0.125 M CH3NH2 and 0.130 M CH3NH3Cl? How would you find a Ka value? Calculate [OH-], [H+], and pH for practicearrow_forwardWhat is the hydroxide ion concentration of a Ca(OH)2 solution that has a pH of 10.40? Please help with this chemistry question.arrow_forwardWhich of the following is the acid ionization constant expression for HC_6H_7O_6 (ascorbic acid)? Select the correct ionization constant expression from the following two possibilities: I. Ka = [HC_6O_7O_6]/[H^+][C_6O_7O_6^-] II. Ka = [H^+][C_6O_7O_6^-]/[HC_6O_7O_6] answer option I. is the correct ionization constant expression II. is the correct ionization constant expressionarrow_forward
- Baseline Question: Calculate the pH of a 5.6x10-9M HCl aqueous solution. ANS: pH=6.99 Commentary: Since I know HCl is a strong acid and ionization is 100%, I thought I could find pH as -log(5.6x10-9), however my teacher said that was incorrect . She did a Kw=[OH-][H3O+] to find x. Use image below to see my work. The answer to the question is pH= 6.99. Actual Question:I want to know why we had to do an ICE table and find "x" (another H3O concentration) instead of -log(5.6x10-9).arrow_forwardWhat is the pH of a 0.420 M solution of C₅H₅NHBr (Kb of C₅H₅N is 1.7 × 10⁻⁹)? (Answer is not 11.16)arrow_forwardWhat is the pH of a 0.123M solution of chloroacetic acid (CH2ClCOOH). Ka = 1.4 x 10-3 (ICE problem) (Your answer should have 2 digits after the decimal)arrow_forward
- Try to solve the screen question. What is the pH of a .25M solution of ammonia? The Kb of NH_3 is 1.8×10-5arrow_forwardThe ionization constant, Ka, for weak acid, HA, is 6.59 x 10^-8. What is the pH of a 0.6182 M solution of this acid? The equation for the ionization of weak aicd HA as follows: HA (aq) + H2O(I) → H3O+(aq) + A- (aq) Report answer with two places past the decimal pointarrow_forwardProblem 8-8 The [OH-] of a solution is M. What are the pOH and pH of this solution?arrow_forward
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning