Question

Calculate the number of atoms of each type in 3.42g of sucrose

Answer 1

Answer:

Molar mass of C12H22O11 = 342 g/mol

1 mole of C12H22O11 = 342 g

3.42 g of C12H22O11 = 0.01 mole of C12H22O11.

Mass of C in 342 g C12H22O11 = 12 x 12 = 144 g

Mass of C in 3.42 g of C12H22O11 = 1.44 g

Mass of H in 342 g C12H22O11 = 22 x 1 = 22 g

Mass of H in 3.42 g of C12H22O11 = 0.22 g

Mass of O in 342 g C12H22O11 = 11 x 16 = 176 g

Mass of O in 3.42 g of C12H22O11 = 1.76 g

Number of atoms = number of moles x 6.023 x 1023 atoms

now u can find the following .......

Number of C atoms=

Number of H atoms=

Number of O atom

May be it's helpful for you