For which type of titration will the pH be basic at the equivalence point? a. St

Question

For which type of titration will the pH be basic at the equivalence point? a. Strong acid vs, Strong base. b. Strong acid vs, weak base. c. Weak acid vs, strong base. d. All of the above e. None of the above. The naturally occurring form of a metal that is concentrated enough to allow economical recovery of the metal is known as a. an element. b. a mineral. c. gangue. d. an ore. e. an amalgam. On analysis, an equilibrium mixture for the reaction 2H_2S(g) 2H_2(g) + S_2(g) was found to contain 1.0 mol H_2 S, 4.0 mol H_2, and 0.80 mol S_2 in a 4.0 L vessel. Calculate the equilibrium constant, K for this reaction. a. 1.6 b. 3.2 c. 12.8 d. 0.64 e. 0.8 Complete and balance the following redox equation. When properly balanced using the smallest whole-number coefficients, the coefficient of S is H_2S + HNO_3 rightarrow S + NO (acidic solution) a. 1 b. 2 c. 3 d. 5 e. 6 The electron configuration of a Cr^3+ ion is a. [Ar]3d^5 b. [Ar]4S^1 3d^2. c. [Ar]3d^3. d. [Ar]4S^13d^5. e. [Ar]4S^23d^4. A 23.0% by mass LiCI solution is prepared in water. What is the mole fraction of the water? a. 0.113 b. 0.127 c. 0.873 d. 0.887 e. 0.911 The best name for K_4[FeCI_2(CN)_4] is a. tetrapotassium dichlorodicyanoiron(II). b. potassium dichlorodicyanoiron(II). c. potassium dichlorodicyanoferrate

Explanation / Answer

15. Answer: option c

At equivalence point equivalent of acid and base are equal.A strong base would dissociate more then weak acid so number of hydroxide ions would be more then hydronium ion hence solution would be basic

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