Inorganic Chemistry Answers

Write the electron configuration for the following elements in the ground state.

1. P and P3- (atomic number =15).
2. Ca and Ca2+ (atomic number =20).

A closed gas cylinder contains 0.500 mol H2, 0.300 mol O2, 1.200 mol CO2 at a temperature of 25 °C and a pressure of 2.00 atm.

1. Explain Dalton’s Law of partial pressure.
2. Calculate the volume of the cylinder.
3. Calculate the partial pressure of O2 in the container.

a. Explain what is the valence electron is and why the lewis symbol for an atom only accounts for electrons in the valence shell of the atom

b. sketch the lewis dot structure for each of the following compounds and state the molecular geometry.

i. BeF₂

ii. BCI₃

iii. CCI₄

iv. PBr₅

c. what is the octet rule and how it is achieved?

1. A creation to convert ammonia into nitric acid involved following chemical equation:

4 NH₃ (g) + 5 O₂ (g)a 4 NO(g) + 6 H₂O(g)

Assume that 1.50 g of NH₃ react with 2.75 g O₂, then;

a. determine the limiting reactant

b. calculate how many grams of NO and H₂O will form in the reaction above

c. calculate how many grams of the excess reactant will remain after the reaction is complete.

d. if the yield obtained for NO is 1.80 grams and yield obtained for H₂O is 1.50 grams, calculate the percent yield of NO and H₂O in this reaction

(atomic mass of N=14; O=16; H=1)

1. The ideal gas law equation is derived from the three gas laws. Explain the three gas laws by providing mathematical equations showing the relationship between the relevant quantities.

2. A closed gas cylinder contains 0.500 mol H_2, 0.300 mol O_2,1.200 mol CO₂ at a temperature of 25 degree and a pressure of 2.00 atm.

i. Explain dalton law of partial pressure

ii. Calculate the volume of the cylinder

iii. Calculate the partial pressure of 0₂ in the container

3. Sketch the S orbital and the 3 types of P Orbitals.

4. Which of the quantum numbers govern,

i. The shape of an orbital?

ii. The energy of an orbital

iii. The spin properties of the electron?

iv. The spatial orientation of the orbital?

5. Write the electron configuration for the following element in the ground state.

i. P and P^-3 (atomic number = 15)

ii. Ca and Ca²⁺ (atomic number =20)

6. If n=3, find

i. Angular momentum quantum number, I

ii. Subshell designation

iii. Magnetic quantum number, m_I

iv. Number of orbital in subshells

2. (a) Explain what is the valence electron is and why the Lewis symbol for an atom

only accounts for electrons in the valence shell of the atom.

(b) Sketch the Lewis Dot Structure for each of the following compounds and

state the molecular geometry.

i. BeF2

ii. BCl3

iii. CCl4

iv. PBr5

(c) What is the octet rule and how it is achieved?

1. A reaction to convert ammonia into nitric acid involves following chemical

equation:

4 NH3 (g) + 5 O2 (g)à 4 NO(g) + 6 H2O(g)

Assume that 1.50 g of NH3 reacts with 2.75 g O2, then:

(a) Determine the limiting reactant.

(b) Calculate how many grams of NO and H2O will form in the reaction above.

(c) Calculate how many grams of the excess reactant will remain after the

reaction is complete.

(d) If the yield obtained for NO is 1.80 grams and yield obtained for H2O is 1.50

grams, calculate the percent yield of NO and H2O in this reaction.

(Atomic mass of N = 14 ; O = 16 ; H = 1)

(a) Sketch the s orbital and the 3 types of p orbitals.

(b) Which of the quantum numbers govern,

i. the shape of an orbital?

ii. the energy of an orbital?

iii. the spin properties of the electron?

iv. the spatial orientation of the orbital?

(c) Write the electron configuration for the following elements in the ground

state.

i. P and P3- (atomic number =15).

ii. Ca and Ca2+ (atomic number =20).

(d) If n = 3, find the

i. angular Momentum Quantum Number, l

ii. subshell designation.

iii. magnetic Quantum number, ml

iv. number of orbitals in subshells.

A closed gas cylinder contains 0.500 mol H2, 0.300 mol O2, 1.200 mol CO2 at a

temperature of 25 °C and a pressure of 2.00 atm.

i. Explain Dalton’s Law of partial pressure.

ii. Calculate the volume of the cylinder.

iii. Calculate the partial pressure of O2 in the container.

The Ideal Gas Law equation is derived from the three gas laws. Explain the

THREE gas laws by providing mathematical equations showing the

relationship between the relevant quantities.