Ammonia rapidly reacts with hydrogen chloride, making ammonium chloride. calculate the number of grams of excess reactant when 6.91 g of nh3 reacts with 4.61 g of hcl.

Given:

Ammonia

Hydrochloric acid

To find:

The amount excess of reactant left over in ammonia.

Solution:

Ammonia reacts rapidly with hydrochloric acid to form Ammonium Chloride

Equation for the above statement is derived as:

One gram per mole of ammonia

Similarly for 6.91g of

One gram per mole of hydrochloric acid

Similarly for 4.61g of

From the above information we can say that h c l is a limiting reactant.

Limiting reactant is an element that consumes lesser product in a chemical reaction.

Thus the amount of excess reactant is calculated by using the following formula

Amount of excess reactant left over in

Result:

Amount of excess reactant left over ammonia

o conteúdo de calor de um sistema é igual à entalpia apenas para um sistema que é constante