Answer: The number of molecules present in given amount of glucose are [tex]31.28429\times 10^{23}[/tex]
Explanation:
To calculate the number of moles, we use the equation:
[tex]\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}[/tex]
We are given:
Mass of glucose = 936 g
Molar mass of glucose = 180.16 g/mol
Putting values in above equation, we get:
[tex]\text{Moles of glucose}=\frac{936g}{180.16g/mol}=5.195mol[/tex]
Now, according to the mole concept:
1 mole of a compound contains [tex]6.022\times 10^{23}[/tex] number of molecules.
So, 5.19 moles of a compound will contain [tex]5.195\times 6.022\times 10^{23}=31.28429\times 10^{23}[/tex] number of molecules.
Hence, the number of molecules present in given amount of glucose are [tex]31.28429\times 10^{23}[/tex]
