A sample of aluminium has a mass of 6.3g, calculate 1.the number of mole of aluminium present.2.the number of atoms of aluminium take(AL=27)

Answer 1

1. moles = mass / atomic mass = 6.3 / 27

2. atoms = moles * Avogadro's number = moles * 6.02E23

Answer 2

The correct answer

Answer 3

Mole =mass/molar mass=6.3/13

Answer 4

Mass/molar mass =6.3/13

Answer 5

answer

Answer 6

1.0.233
2.1.40266-10^23

Answer 7

Mole of Al present=0.233

Answer 8

GLAIIE

Answer 9

mole present = 0.23

Answer 10

0.23mole