Respuesta :
Answer:
1.04 moles of vitamin A2 contain the same number of atoms as 1.000 mol vitamin A
Explanation:
Step 1: Data given
Vitamin A = C20H30O
Vitamin A2 = C20H28O
Step 2: Determine the atoms in vitamin A
Vitamin A has 20 C atoms and 30 H atoms and 1 O-atom
In total we have 51 atoms in vitamin A
Step 3: Calculate numbers of atom in 1 mol
1 mol contains 6.022 * 10^23
For 51 atoms = 51 * 6.022*10^23 = 306 *10^23
Step 4: Determine atoms in vitamin A2
Vitamin A2 has 20 C atoms and 28 H atoms and 1 O-atom
In total we have 49 atoms in vitamin A2
Step 5: Calculate molecules A2
Molecules A2 = 306 *10^23 / 49
molecules A2 = 6.24*10^23
Step 6: Calculate how many moles of vitamin A2 contain the same number of atoms as 1.000 mol vitamin A.
n = 6.24*10^23 / 6.022*10^23 = 1.04 mol
1.04 moles of vitamin A2 contain the same number of atoms as 1.000 mol vitamin A
