Concept explainers
When hydrochloric acid solution reacts with lead (ll) nitrate solution, lead (Il) chloride precipitates and a solution Of nitric acid is produced.
a. Write the balanced chemical equation for the reaction.
b. Interpret the equation in terms of molecules and formula units, moles, and mass.
(a)
Interpretation:
The balanced chemical equation for the reaction of hydrochloric acid with lead (II) nitrate solution that results the formation of lead(II) chloride as solid and solution of nitric acid needs to be determined.
Concept introduction:
The mole concept provides the relation between moles, mass and molar mass. The mathematical expression of mole concept can be written as:
1 mole of any substance contains
Answer to Problem 47A
Explanation of Solution
Whenthe reaction of hydrochloric acid with lead (II) nitrate solution it results the formation of lead(II) chloride as solid and solution of nitric acid. The chemical formula of reactant and products are:
Hydrochloric acid = HCl
Lead (II) nitrate =
Lead (II) chloride =
Nitric acid =
Thus the balance chemical equation must be:
(b)
Interpretation:
The given reaction in terms of molecules, formula units, moles and mass needs to be determined.
Concept introduction:
The mole concept provides the relation between moles, mass and molar mass. The mathematical expression of mole concept can written as:
1 mole of any substance contains
Answer to Problem 47A
Explanation of Solution
According to the given balance chemical reaction:
Thus the reaction in terms of molecules and formula units:
Thus the reaction in terms of moles:
The reaction in terms of mass:
Molar mass of
Molar mass
Molar mass
Molar mass of
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Chemistry: Matter and Change
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