Question

calculate the mass of 0.5 moles of sugar

Answer 1

heya it's Aastha....

◆sugar = C12H22O11

◆mass of C = 12u mass of H = 1u mass of O = 16u

amu of sugar =( 12*12) + (1*22)+ (16*11)

=144 + 22 + 176 = 342u

◆molar mass = 342 gram

◆mass = no. of moles * molar mass = 0.5 * 342 = 171 gram

I hope it help you

Answer 2

Chemical formula of Sugar is C12H22O11 .



One mole of sugar weighs = Gram molecular mass of sugar.

Now, Gram molecular mass = 12(12) + 22 + 11( 16) = 144 + 22 + 176 = 342 .

Let the Weight of 0.5 moles be x


We have,

1 mole => 342 g.

0.5 mole => xg.

x = 0.5 * 342 = 171 .

Therefore, Mass of 0.5 moles is 171 g.