Question

You need a 50% w/v glucose (M.W. 180.2) solution. Describe how you would make 1 L of this solution.

Answer 1

Answer:

By adding 500 g or 0.5 kg of glucose to water until a volume of 1 L.

Explanation:

Hello,

In this case, since the mass-volume percent is computed taking into account the mass of solute and the volume of solution:

$\% m/v=\frac{m_{solute}}{V_{solution}}*100\%$

In order to make a 1-L solution, we must measure out the following mass of glucose:

$m_{solute}=\frac{V_{solution}*\% m/v}{100\%}\\\\m_{solute}=\frac{1L*50\%}{100\%}\\ \\m_{solute}=0.5 kg =500g$

By using a balance and subsequently mix it into a 1-L flask in order to prepare it.

Best regards.