Can you please answer and explain question 10? Thank you! :) Questions 6-8refer
ID: 1090258 • Letter: C
Question
Can you please answer and explain question 10?Thank you! :) Questions 6-8refer to the following 6. Which species are considered to be Bronsted-Lowry acids? HF is a Bronsted Lowry acid because it donates a proton. (B) HF and HiO are both Bronsted-Lowry acids because they both donate protons. and F are both Bronsted Lowry acids because HF gains a proton while F donates a proton. HE and HiO are both Bronsted-Lowry acids because HF donates a proton while H,O gains a praton. 7. If the concentration of the HF in the reaction above is 0.1 M, what is an approximate pH of the solution? (A) 1 B) 2 8. Which is the strongest base in this reaction? B) H:O (C) HF 9. A 0.010-mole sample of KiSO, is added to 1.0 L of each two different solutions. One solution contains 20 x 10-3 M Ba(NOs)a, and the other contains 2.0 x 10* M AgNO>. Which statement best describes what is d? K, for Baso. = 1.5x 10; K. for AgaSO. = 1.2 x 10-5. A) BaSO4 would precipitate, but Ag:S04 would not. ) Ag:SO4 would precipitate, but BasOs would not. (C) Both would precipitate (D) Neither would precipitate. 10. For which of the following can we directly compare their Ksp values to determine their relative solubilities? (A) Ag:CrOs and AgBr (B) Ag SOs and Caso (C) PbCl2 and PbSO (D) ZnS and Agl--> 11. The salt MXz has a solubility of 1.0 x 10* M. Determine the Kup for MXz. (A) 1.0x 104 (B) 1.0 x 10-8 (C) 1.0 x 10-12 D) 4.0 x 10-12 2. Three ionic salts, AX, BXi, and CX, each have a solubility of 2 x 10"s M. Which of the following correct nks the Ksp of the three salts from least to greatest? (C) BX2
Explanation / Answer
Option D
This is because only this couple has not any common ions but other three have minimum one common ion(Ag+ in first, SO4- in second, Pb2+ in third) so common ions effect will come into play.so we can not determine their solubility directly.As no common ions present in fourth, so we can determine solubility directly by Kw.