Question

» How many carbon atoms are present in 0.5 moles of oxalic acid ( c2 h2 o4)

Answer 1

Explanation:

Thus, if we have 6.022 × 10 23 O atoms, we say we have 1 mol of O atoms. If we have 2 mol of Na atoms, we have 2 × (6.022 × 10 23) Na atoms, or 1.2044 × 10 24 Na atoms. Similarly, if we have 0.5 mol of benzene (C 6H 6) molecules, we have 0.5 × (6.022 × 10 23) C 6H 6 molecules, or 3.011 × 10 23 C 6H 6 molecules.Aug

Answer 2

1 mole  contains 6.6 × 10²³  molecules of oxalic acid.

1 molecule has 2 carbon atoms.

Therefore , number of carbon atoms in 1 mole = 6.6 × 10²³ × 2

                                                                          = 13.2 × 10²³

so, number of carbon atoms  present in 0.5 moles  = 13.2 × 10²³/2

                                                                                      =6.6 × 10²³