Inorganic Chemistry Answers

What mass of KNO3 will dissolve in water to produce 0.005g

the importance of the 3 Principal Classes of Compounds in our everyday life.

finding PH

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:

1. Calculate how many grams of the excess reactant will remain after the

reaction is complete.

2. 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 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.

(a) 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.

(b) 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

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?

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.

If n=3,find the

1. angular Momentum Quantum Number, l
2. subshell designation.
3. magnetic Quantum number, ml
4. number of orbitals in subshells.

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).