grade 12 Chemistry review

. Calculate E°cell for the following reaction: 2Fe2+ (aq) + Cd2+ (aq) à 2Fe3+ (aq) + Cd(s)

What is the correct electronic configuration of Copper?

name an isomer of 2-methylpropane

The air pollutant NO is produced in automobile engines from the high temperature reaction: N2 (g) + O2 (g) D 2NO(g) Keq = 1.7 x 10-3 at 2300K. If the initial concentration of N2 (g) and O2 (g) at 2300K are both 1.40M, what is the concent

Identify the following atom or ion from the electron configurations. Y - : 1s22s22p63s23p64s23d104p65s24d105p6

Which of the following is NOT a strong base? 1. Be(OH)2 c. NaOH 2. Li2O d. CaO

Identify the reducing agent in the following chemical reaction. Cd + NiO2 + 2H2O → Cd(OH)2 + Ni(OH)2

How many carbons are there in 3-ethylpentane?

If you have a negative entropy and a positive enthalpy, what can the Gibb's free energy be?

Which one of the following is a redox reaction?

How can you convert but-2-yne to (2Z)-but-2-ene

When an electron falls to a lower energy level it:

Calculate the [H+] in a solution that has a pH of 9.48.

What is the name of this compound?

Identify the following atom from the electron configurations. Y : 1s22s22p63s23p64s23d104p65s24d105p1

What is the major product when 2-methylprop-1-ene is treated with HBr at room temperature?

Using the following thermochemical data: 2Y(s) + 6HF(g) → 2YF3(s) + 3H2(g) ΔH° = –1811.0 kJ/mol 2Y(s) + 6HCl(g) → 2YCl3(s) + 3H2(g) ΔH° = –1446.2 kJ/mol calculate ΔH° for the following reaction: YF3(s) + 3HCl(g) → YCl3(s) + 3HF(g)

What is the specific heat capacity of zinc if it requires 146 J to raise the temperature of 15 grams of zinc by 25°C?

What is the pH of a solution made of 0.50 M acetic acid and 0.200 sodium acetate given the Ka of acetic acid is 1.8 x 10-5?

The oxidation number of Fe in K3Fe(CN)6 is:

What VSEPR molecular shape do you expect for IF4 +?

Calculate the [H+] in a solution that is 0.18 M in NaF and 0.25 M in HF. (Ka = 7.2 × 10–4)

How many carbons are there in methyl butanoate

For the reaction: 2HI (g) <--> H2 (g) + I2 (g). If the Ksp is 0.020 and the Qsp is 0.34, the reaction will proceed which direction?:

Given the equilibrium: AgBr(s) <--> Ag+ (aq) + Br-(aq) Ksp = 3.3 x 10-13 If [Br-(aq)] = 0.50 mol/L, what is [Ag+ (aq)]?

The pH at the equivalence point of a titration of a weak acid with a strong base will approximately be

Is cyclopentanol a primary secondary or tertiary alcohol?

What is the hybridization of a carbon in ethene?

For the reaction: Ag+ (aq) + Cl-(aq) <--> AgCl(s) ΔH = -127kJ/mol In which direction does the equilibrium shift as a result of adding NaCl?

Cyclopropane undergoes rearrangement to form propene, C3H6. If cyclopropane disappears at a rate of 0.50 mol/ Ls, at what rate is propene being pduced?ro

The oxidation number of N in (NH4)3PO4 (ammonium phosphate) is:

For nitrous acid, HNO2, Ka = 4.0 × 10–4. Calculate the pH of 0.54 M HNO2.

State the condensed electron configuration of b. S^2- (sulfur anion)

In the following chemical reaction the oxidizing agent is 1. 5H2O2 + 2MnO4 – + 6H+ → 2Mn2+ + 8H2O + 5O2

What is the VSEPR shape of AsH3

Which of the following would you expect to have the highest boiling point? ethanol, ethyl ethanoate, ethanoic acid, ethane, ethene, ethyne, ethanal or chloroethane?

If n=2, what is l and ml respectively?