Question

Chlorophyll, the
green colouring
mattes of plants contains
2.64% of Magnesium by mass.
Calculate the no. of magnesium atoms
in 3.00g of chlorophyll.​

Answer 1

Explanation:

Mass of magnesium in 3.00 g of chlorophyll

=

100

2.68×3

=0.080g

24.3 g of Mg contain =6.02×10

23

atoms

0.080 g of Mg contain =

24.3

6.02×10

23

×0.080

=1.98×10

21

atoms

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