Question

just the letter answers are fine thanks!

1. When solid aluminum phosphate is in equilibrium with its ions, the ratio of aluminum ions to phosphate ions is: a) 1:1 d) 2:1 b) 1:2 e) 2:3 c) 1:3 f) 3:1 2. Which of the following can act as both a Bronsted-Lowry acid and base in water? a) HCO3 c) HO b) PO d) HBO 3. In a saturated solution of silver sulfite, the concentration of the silver ion is 3.6 x 10+ mol/L. The Ksp of silver sulfite is: a) 7.6 x 10-19 c) 23 x 10" b) 1.2 x 10-11 d) 6.5 x 108 4. The Kb of NH3 is 1.8 x 10-5. The Ka of the conjugate acid (NH4+) is: a) 3.24 x 10-10 c) 1.8 x 10-19 b) 1.8 x 10 d) 5.56 x 10-10 5. In the following reaction, what acts as the two Bronsted-Lowry acids? H2CO3 + H2O + HCO3 + H:0* a) H.CO; and H.O c) H.CO; and H2O b) HCO and H0 d) H20 and HCO, 6. For the following equilibrium, which of the following would result in an increase in the quantity of PCI? PC13@+Cha+→ PC150) +45kJ a) Increasing temperature c) Increasing volume b) Increasing pressure d) Adding a catalyst

Answer 1

1. Aluminium phosphate AlPO4 Alt PO3- 3- Al 3 : POA 1:1 Ang a 1:1 2. Bronsted acid Proton (H+) acceptor donar Brensted base : Proton (H+) accepter Нc0, +и+ но 누 cortet Ans. @ hoz 3, Agas - 2 Agt +5² [Agt ] = 3.6x10e ; (52] = { cagt )= 118X164 Cagti(5-2) = 3.6 X16* x119x104 I .. kspi Solubility product = 6.48X76-8 ñ 6.5810-8 Ans d) 6.5X10-8 Scanned with CS. Cam seamer

pels (g) + 45 kJ 4, For conjugate aced-base kair; kq. Kb = Rw = = Rw = 10-14 Ka -14 10 lore Kb 118 X10-5 -10 Ka = 5.56810 Ans (d) 5.56x1010 -Ht I 5. h W 3 +tho HO₂ + thot - Ht Pronsted Aed: Proton donar Cht) Ans (C) h coz & tho tot ра, с9) + Cl (9) 6, Reaction : Exothermic if wel increase temperature : Buckward reaction : Forward reaction if we decrease temperature [PU5) increases Pressure is forward reaction CS Scannel 6) Increasing pressure CamScanner