Mass in grams of solute needed to prepare 0.250 L of 0.167 M should be determined. Concept introduction: The concentration of any solution means the amount of solute present in the specific volume of the solvent. Now the amount of solute present in the solution is expressed by different units like gram, gram-equivalent, gram-mole or mole etc. The amount of solvent to prepare the solution can be expressed in terms of weight or volume. The different unit of expression the concentration of a solution are- percentage strength, normality, molarity, molality, formality, gram per litter, mole fraction, parts per million etc. Molarity: In per litter (1000 mL or 1000 cc) volume of any solution the amount of solute present in gram-mole is called the molarity of the solution. It is expressed by ‘M’. Like- If in 1 L of solution 2 gm-mole of the pure is present then the strength of the solution will be 2 M. It can be expressed as-

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Chapter 5, Problem 42P

a.

Interpretation Introduction

Interpretation:

Mass in grams of solute needed to prepare 0.250 L of 0.167 M should be determined.

Concept introduction:

The concentration of any solution means the amount of solute present in the specific volume of the solvent. Now the amount of solute present in the solution is expressed by different units like gram, gram-equivalent, gram-mole or mole etc. The amount of solvent to prepare the solution can be expressed in terms of weight or volume. The different unit of expression the concentration of a solution are- percentage strength, normality, molarity, molality, formality, gram per litter, mole fraction, parts per million etc.

Molarity: In per litter (1000 mL or 1000 cc) volume of any solution the amount of solute present in gram-mole is called the molarity of the solution. It is expressed by ‘M’. Like- If in 1 L of solution 2 gm-mole of the pure is present then the strength of the solution will be 2 M. It can be expressed as-

b.

Interpretation Introduction

Interpretation:

Mass in grams of solute needed to prepare 625 mL of 0.0200 M should be determined

Concept introduction:

The concentration of any solution means the amount of solute present in the specific volume of the solvent. Now the amount of solute present in the solution is expressed by different units like gram, gram-equivalent, gram-mole or mole etc. The amount of solvent to prepare the solution can be expressed in terms of weight or volume. The different unit of expression the concentration of a solution are- percentage strength, normality, molarity, molality, formality, gram per litter, mole fraction, parts per million etc.

Molarity: In per litter (1000 mL or 1000 cc) volume of any solution the amount of solute present in gram-mole is called the molarity of the solution. It is expressed by ‘M’. Like- If in 1 L of solution 2 gm-mole of the pure is present then the strength of the solution will be 2 M. It can be expressed as-

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