Write the cell notation based on the description of the following voltaic cell: Silver ions are reduced to silver metal, and copper metal is oxidized to Cu2+ under standard conditions. Show your work including the two half-reactions.

Calculate ∆Go for the following reaction at 298 K. CH3OH(g)  ⇌ CO(g) + 2H2(aq)    Kc = 7.1 x 10-6

Which substance in the given pairs has the higher entropy value ? a) HNO3(aq) or b) HNO3(l) a) C2H5OH(l) or b) C3H7OH(l) a) HCl(g) or b) HBr(g)

1. Select the strongest acid from the following: A) HClO or HClO2 B) HI or HBr 2. Select the strongest base from the following: C) NO2- or NO3- 3. Which will be more soluble in an acidic solution? D) CuCO3 or CuBr2

Which of the following acids is the weakest? The acid is followed by its Ka value.

For the titration of 15.0 mL of 0.400 M HCl with 0.200 M NaOH. HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l) a) What is the initial pH? pH =  b) What is the pH after the addition of 5.00 mL of NaOH ? pH =  c) What is the pH after the addition of 30.0 mL of NaOH? pH =  d) What is the pH after the addition of 35.0 mL of NaOH? pH = 

Calculate the pH of a solution that contains 3.9 × 10-5 M H3O+ at 25°C.

Calculate the hydroxide ion concentration in an aqueous solution with a pH of 3.00 at 25°C.

Are the following solutions acidic, basic, or neutral? a) Ba(NO3)2(aq) b) NaClO2(aq) c) NH4ClO4(aq)

The pH of a 1.75 M solution of weak acid HA is 3.25. Calculate the value of Ka for HA.