Question

Which has more particles? 10.0 g of Carbon or 10.0 g Calcium? How many atoms does each have?

Answer 1

Answer:

10g Carbon has more particles.

Explanation:

To Find

Which has more particles 10g of C or 10g of Ca

The molar mass of carbon is 12g and Calcium is 40g.

1 mole of  atom , molecule or ions contain Avagadro number (6.022×10∧23) of particles and also have a mass equal to it's molar mass.

For C,

12g C  will have 6.022×10∧23 atoms

10g C will have  $\frac{10}{12}$ ×6.022×10∧23 atoms

=0.833 × 10∧23 atoms

For Ca,

1 mole Ca =40g

40g Ca will have 6.022×10∧23 atoms

10g Ca will have $\frac{10}{40}$ ×6.022×10∧23 atoms

=0.25 × 6.022×10∧23 atoms