(a)
Interpretation:
The mass of sodium sulfide required to react completely with 27.8 mL of 0.163 M silver nitrate needs to be determined.
Concept introduction:
The ratio of moles in which reactant reacts and products are formed in a reaction is called stoichiometric ratio.
The molarity of solution is defined as number of moles of solute in 1 L of the solution. It is mathematically represented as follows:
Here, n is number of moles of solute in 1 L of the solution.
For given mass of a solute, the number of moles can be calculated as follows:
Here, m is mass and M is molar mass of the solute.
(b)
Interpretation:
The mass of silver sulfide obtained when silver nitrate reacts with sodium sulfide in part need to be determined.
Concept introduction:
The ratio of moles in which reactant reacts and products are formed in a reaction is called stoichiometric ratio.
The molarity of solution is defined as number of moles of solute in 1 L of the solution. It is mathematically represented as follows:
Here, n is number of moles of solute in 1 L of the solution.
For given mass of a solute, the number of moles can be calculated as follows:
Here, m is mass and M is molar mass of the solute.
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GENERAL CHEMISTRY-MOD.MASTERINGCHEM.
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