Question

Chalk contain 3%of carbon 10%of calcium and 12%oxygen find the amount in gram of each of these substance in 1 kg of chalk

Answer 1

Answer:

Given, Chalk is 1 kg = 1000 g

Amount of chalk in carbon =3/100×1000

=30g

                                             

Amount of Calcium in chalk =10/100×1000

=100g

Amount of Oxygen in chalk =12/100×1000

=120 g

Hope this helps!