Concept explainers
Write a balanced equation for the neutralization of each of the following:
a.
b.
c.
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EP BASIC CHEMISTRY-STANDALONE ACCESS
- Hydrazine, N2H4, can interact with water in two steps. N2H4(aq) + H2O() N2H5+(aq) + OH(aq) Kb1 = 8.5 107 N2H5+(aq) + H2O() N2H62+(aq) + OH(aq) Kb2 = 8.9 1016 (a) What is the concentration of OH, N2H5+ and N2H62+ in a 0.010M aqueous solution of hydrazine? (b) What is the pH of the 0.010M solution hydrazine?arrow_forwardWhich of the following salts produces a neutral solution when dissolved in water? a. NaClO 4 b. KF c. All of these salts produce a neutral solution when dissolved in water. d. Mg(NO 2 ) 2 e. CaCO 3arrow_forwardQ 4 pleasearrow_forward
- Q 12 pleasearrow_forwardThe pOH of the solution of NaOH is 11.3. What is the [H3O+] for this solution? a.5.01 x 10-12 b.4.0 x 10-12 c.6.23 x 10-8 d.2.00 x 10-3arrow_forwardFor each of the following cases, decide whether the pH is less than 7, equal to 7, or greater than 7. a. 10. mL of 0.25 M propanoic acid, CH3 CH2 CO,H is mixed with 10. mL of 0.25 M NAOH. The pH of the solution is less than 7. The pH of the solution is equal to 7. O The pH of the solution is greater than 7. b. 90. mL of 0.45 M HCIO is mixed with 90. mL of 0.45 M NaOH. The pH of the solution is less than 7. The pH of the solution is equal to 7. O The pH of the solution is greater than 7. c. 55 mL of 0.35 M HNO3 is mixed with 55 mL of 0.35 M NaOH. O The pH of the solution is less than 7. O The pH of the solution is equal to 7. O The pH of the solution is greater than 7.arrow_forward
- Mg(OH)2 + 2 HCI -> MgCl2 + 2 H20 Use the balanced chemical equation to calculate the mass and volume of 0.99 M hydrochloric acid required to neutralize 750.0 mg of magnesium hydroxide.arrow_forwarda. What is the pOH of an aqueous solution of 0.483 M hydrochloric acid?pOH =______ b. What is the hydronium ion concentration in an aqueous nitric acid solution that has a pOH of 9.200?[H3O+] = _______Marrow_forwardQ 2 pleasearrow_forward
- A. What is the pH of an aqueous solution with a hydrogen ion concentration of [H+]=7.2×10−5[H+]=7.2×10−5 M? B. What is the hydroxide ion concentration, [OH−][OH−], in an aqueous solution with a hydrogen ion concentration of [H+]=7.2×10−5[H+]=7.2×10−5 M? C. A monoprotic weak acid, HAHA, dissociates in water according to the reaction HA(aq)↽−−⇀H+(aq)+A−(aq)HA(aq)↽−−⇀H+(aq)+A−(aq) The equilibrium concentrations of the reactants and products are [HA]=0.120 M[HA]=0.120 M, [H+]=3.00×10−4 M[H+]=3.00×10−4 M, and [A−]=3.00 ×10−4 M[A−]=3.00 ×10−4 M. Calculate the ?aKa value for the acid HA.arrow_forwardA solution with a pOH of 11.70 has an [H+] of a. 5.0 × 10−3 M.b. 3.2 × 10−4 M.c. 2.0 × 10−12 M. d. 2.30 M.arrow_forwardA solution with a pOH of 10.70 has an [H +] of a.2.0 × 10−12 M. b.5.0 × 10−4 M. c.3.2 × 10−4 M. d.0.36 M. e.5.0 × 10−3 M.arrow_forward
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