Question

Whatisthenumberof moles of glucose(C₆H₁₂O₆)in 0.500L of a 0.40 Msolution?

Answer 1

`0.2\text{ mole}`

Step-by-step explanation:

Here, we want to get the number of moles of glucose in 0.5L of 0.4 M solution

Firstly, we need to recall that concentration or molarity is of the unit mol/dm^3

Mathematically, 1L is 1 dm^3 , thus, we have it that 0.4M is the same as 0.4 mol/dm^3

Now, to get the number of moles from molarity, we have to multiply the molarity by the volume

We have that as:

`\begin{gathered} \text{Number of moles = molarity }*\text{ volume} \\ \text{Number of moles = 0.4 }*0.5\text{ = 0.2 mole} \end{gathered}`