EasyChemistryHigh School (9–10)GeneralMixtures and Solutions › Mixtures, Solutions and ColloidsNumericalBoard Exam
A sports drink is made by dissolving 35 g of glucose in 215 g of water…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
A sports drink is made by dissolving of glucose in of water. Find its concentration as a mass by mass percentage.
Need a reminder? The key ideaShow
Mass by mass , where the solution is solute plus solvent. Volume by volume .
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. The solution. .
Step 2. The percentage. .
Answer: glucose by mass.
Common mistake. Dividing by the water alone gives : the percentage is out of the whole solution.
Discussion (0)
Log in to join the discussion.
Loading…