Inorganic Chemistry Answers

1. Consider the following reaction: 3 Si + 2 N2 → Si3N4 
2. What is the limiting reactant when 21.44 moles of Si reacts with 17.62 moles of N?
3. How many moles of Si3N4 are formed?

1. Consider the following reaction: 2 Al + 6 HBr → 2 AlBr3 + 3 H2 

1. What is the limiting reactant when 3.22 moles of Al reacts with 4.96 moles of HBr? 
2. How many moles of H2 are formed?

If 4.70 grams of hydrogen sulfide react, how many grams of sulfur dioxide will be

produced?

What is the main product formed in the reaction alkali with potassium dichromate

Which of the following complex is diamagnetic? Select one: a. [Mn(H O) ] b. [NiCl ] c. [Ni(CN) ] d. [CoF ]

Write the balanced net ionic equation for sodium aluminate

Q 4. Electronic spin resonance spectrum shows broad line around 1500 Gauss magnetic field when using 9.40GHz micro wave frequency.

a)   What is effective value for ge in this case for a free electron ge approximately equal to 2.

b)  What would be resonant magnetic field value if 20.0 GHz microwave frequency was used instead?

 Q 3. The electronic states of S2 molecule are shown below:

a)   What is approximate value from table for equilibrium dissociation energy for electronic ground state?

b)  What would happen if molecule was excited to the repulsive 1 II mew state?

c)   Which transitions are optically allowed between ground and excited electronic states?

d)  Considering color of substance is determined by corresponding complement color that it is absorbing what electronic transition do you think is responsible for yellow color of Sulphur?

0.52 g of a metal, (M), (Ar= 65), reacts with 192 cm3 of chlorine under room conditions to form a compound. What is the formula of the compound?

In chromyl chloride test a yellowish gas formed during the reaction is due to