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10. Which of these species is probably the weakest acid? (a) HCI (b) H3PO4 (c) H2SO3...
10. Which one of the following is a strong acid? A. H2CO3 B. H2SO3 C. H2SO4 D. H3PO4 E. CHCOOH
10). The K for KPO, at 25°C is... Kas Acid Name oitens Formula Phosphoric Acid H3PO4 Arsenic Acid HASO4 Carbonic Acid H2CO3 Sulfuric Acid H2SO4 Sulfurous Acid H2SO3 to bottom Kai k a, 7.5 x 10 6.2 x 10* 5x 10° 8x 10 4.3 x 10 5.6 x 1011 Large 1.2 x 102 1.5 x 102 1.0 x 10 4.8 x 101 6.0 x 10 10 A. 6.2 x 10 B. 4.8 x 10-13 C. 2.1 x 102 qat boston...
7) Which one of the following is the weakest acid? A) HF (Ka = 6.8 × 10-4) B) HClO (Ka = 3.0 × 10-8) C) HNO2 (Ka = 4.5 × 10-4) D) HCN (Ka = 4.9 × 10-10) B) 5.7 x 10–2 M D) 2.9 x 10–3 M 22) Calculate the hydrogen ion concentration in a solution of iced tea with lemon having a pH of 2.87. A) 2.9x10–2M D) 2.9x10–3M B) 5.7 x 10–2 M E) 5.7 x 10–4...
Q(17) Which species is amphiprotic? A) H3PO4 C) PO43- D) None of these B) H2PO4 Q(18) Ni(CO)4(g)Nis)+ 4 CO(g)Adding nickel (solid) to this reaction will cause the equilibrium to C) remain unchanged E) it depends on the amount added B) Shift toward the reactants A) Shift toward the products D) increase the temperature Q(19) CO2 H2 CO + H20 Adding a catalyst to this reaction will cause the [CO] at equilibrium to A) Shift toward the products C) remain unchanged...
f) (6 pts) Which of the following mixtures will make a buffer? (Circle only one!) r? Circle onlyone f)(6 1000 mL fh following mix oc m will make a b S a) 100 mL of 1.0 M HCI +100 mL of 1.0 M NaOH +100 mL of 0.50 M HF 100 mL of 1.0 M HCI c)100 mL of 1.0 M HF +100 mL of 0.50 M NaOH 100 mL of 1.0 M HF +100 mL of 1.0 M NaOH...
A solution is prepared by dissolving 0.23 mol of formic acid and 0.27 mol of sodium formate in water sufficient to yield 1.00 L of solution. The addition of 0.05 mol of NaOH to this buffer solution causes the pH to increase slightly. The pH does not increase drastically because the NaOH reacts with the present in the buffer solution. The K, of formic acid is 1.8 x 10+ A formic acid B. sodium formate C water D. sodium E....