Answer Happy

a. Calculate the concentration of hydronium ions
(H3O+) and hydroxide ions (OH-)
in
water at neutral pH and 50 °C (pKw = 13.23 for water at 50
°C).

b. Balance the following reactions:

i. HClO + NO2 → Cl2 +
NO3- (in aqueous acidic solution)

ii. F2 + ClO3-→
F- + ClO4- (in aqueous
acidic solution)

iii. MnO42- + Ca →
MnO2 + Ca2+ (in aqueous basic
solution)

iv. Ni(OH)3 + Ti → Ni(OH)2 + Ti2+ (in aqueous basic solution)

v. Cr2O72- + Pb +
SO42- → Cr3++
PbSO4 (in aqueous acidic solution)