Making a Solution

Part of the Food Chemistry and the Lab section of Coddy's Chemistry journey. Lesson 19 of 27.

A volumetric flask is marked for one exact volume.

Mass needed: $n = c \times V$ , then $m = n \times M$ .

Dissolve in a little water, pour into the flask with the rinsings, fill to the mark, mix.

Diluting keeps the moles: c₁V₁ = c₂V₂.

Challenge

A student makes $250\ \mathrm{mL}$ of $0.2\ \mathrm{M}$ glucose solution for a sports drink test. Glucose has a molar mass of $180\ \mathrm{g/mol}$ . What mass m of glucose must be weighed?

Try it yourself

Solve for $m$

Test yourself

This lesson includes a short quiz. Start the lesson to answer it and track your progress.

All lessons in Food Chemistry and the Lab

1Carbohydrates

Sugars Glucose and Fructose Starch and Cellulose Recap - Sugar Detective

4Food Energy and Additives

Energy in Food Vitamins Preservatives and pH Recap - Food Label

7Practice Problems

Recap - Fat in Chips Recap - Vitamin C Titration

2Fats and Oils

Fatty Acids Saturated and Unsaturated Triglycerides and Esters Recap - Oil or Fat

5Laboratory Skills

Lab Safety Measuring Mass and VolumeMaking a SolutionSeparating Mixtures Recap - Lab Notebook

3Proteins

Amino Acids Peptide Bonds Denaturing Proteins Recap - Protein Builder

6Experiments

Titration in the Lab Tests for Ions Rates in the Lab Recap - Mystery Powder