Question

What is meant by concentration of a solution? How will you prepare a $10\%$ of glucose by mass in water?

Answer 1

The concentration of a solution is a proportion of the measure of solute broken up in a dissolvable solvent. To set up a $10\%$ glucose solution, mass out $10g$ glucose (solute), and add enough water (dissolvable) to make a $100{\text{ }}mL$ solution.

Complete step by step answer:
Concentration is characterized as the number of moles (a measure of substance) per unit volume (frequently $litres/dm^3$) as per the condition:
$c = nv$
Where $c$ is the concentration in $mold{m^{ - 3}}$, $n$ is the number of moles of a substance disintegrated in the volume of fluid, $v$.
With regards to setting up a solution of $10\%$ glucose solution by mass, it is done somewhat another way.
I as of late needed to make a $2\%$ starch solution so I'm accepting making a $10\%$ glucose solution works by a similar rule:
Measure up $90ml$of water in an estimating cylinder (which can be accepted to weigh $90g$), and furthermore gauge $10g$ of glucose on a scale.
(So, the complete mass will be $100g$ and $10g$ of it will be glucose, consequently a $10\%$solution)
(I think this is discretionary however it likely assists with dissolving the glucose) Heat the water somewhat and afterwards add the glucose and mix the solution. Glucose disintegrates in water promptly so it ought not to be an issue.
Now you have your solution-in spite of the fact that it is likely best to allow it to cool to room temperature so it doesn't influence different boundaries of a test.

Note: Solution concentration changes when solution volume changes if there should arise an occurrence of molarity just as in the event of concentration by mass in light of the fact that the mass of a substance will change its volume, thus the concentration changes.