Question

Can someone please help me solve these, please show work/explanation and answer!

The directions say that they are predominant species and that I must explain my answer.

11. Which of the following best describes the composition of a solution labeled "0.10 M NaOH"? a. (NaOH) = 0.10 M b. [Na] < 0.10 M, [OH-] <0.10 M C. (Na+) = 0.10 M, [OH-] = 0.10 M d. [Na+] = 0.10 M, [H] = 0.10 M, [02] = 0.10 M e. [Na] < 0.10 M, [H"] < 0.10 M, [02] < 0.10 M 12. Which of the following best describes the composition of a solution labeled "0.10 M HCIO"? a. (HCIO) = 0.10 M b. [H*] = 0.10 M, (ClO ) = 0.10 M C. [H*] < 0.10 M, CO] < 0.10 M d. [H*] = 0.10 M, [CI'] = 0.10 M, [0²] = 0.10 M 13. Which of the following best describes the composition of a solution labeled "0.10 M Naf"? a. [Na+] = 0.10 M, [F] = 0.10 M. b. [Na] < 0.10 M, [F] <0.10 M C. (Na+) = 0.10 M, [F] < 0.10 M, [HF] >OM d. [Na*) = 0.10 M, (HF) = 0.10 M e. [Na] < 0.10 M, (HF) < 0.10 M + 152%

Answer 1

→ since, being Nach a strong base, it will felly ionize to give Nat & otion, so that, the best composition is, © Lat] = 0 (0 M, Low-3 = 0 (o 1 - 2 since, Hclo is a weak acid with ka value of 4X108 at 25°C. so, it will approximately hon. ionized at all. So, its best composition in @ [Hclo] = 0.lom: - (13) Again ionic compound NQF fully tissociate to give Nat & that NaF not remain in solh. sotium fluorite! Frion, so co @ [Na+] = o'lom, [F] = 0.109