Chlorophyll, the green colouring matter of plants, contains 2.68% of magnesium by mass. Calculate the number of magnesium atoms in 3.00 g of chlorophyll. [Atomic mass of magnesium = 24.3 g]

Open in App

Solution

Mass of magnesium in 3.00 g of chlorophyll
$= \frac{2.68 \times 3}{100} = 0.080 g$
24.3 g of Mg contain $= 6.02 \times 10^{23}$ atoms
0.080 g of Mg contain $= \frac{6.02 \times 10^{23}}{24.3} \times 0.080$
$= 1.98 \times 10^{21}$ atoms

Suggest Corrections

Similar questions

Q. Chlorophyll, the green colouring matter of plants contains

2.68 %

of magnesium by weight. Calculate the number of magnesium atoms in

2.00 g

of chlorophyll?

(Atomic mass of

M g = 24

)

Q. Chlorophyll contains 2.68% of magnesium by mass. Calculate the number of magnesium atoms in 3.00 gms of chlorophyll.

Chlorophyll the green colouring matter of plant contains 2.68% of magnesium. Calculate the number of atoms of

M g

in 2g of Chlorophyll.

Chlorophyll the green pigment a complex of magnesium contains 2.68 % of magnesium by weight. Calculate the number of magnesium atoms in 5 gram of the chlorophyll.

Please explain in detail.

State true or false with calculations

Chlorophyll contains 2.68% of magnesium by mass.The number of Mg atoms in 3g of chlorophyll is 2.01 × 10²¹atoms.

Join BYJU'S Learning Program

Chlorophyll, the green colouring matter of plants, contains 2.68% of magnesium by mass. Calculate the number of magnesium atoms in 3.00 g of chlorophyll. [Atomic mass of magnesium = 24.3 g]

Mass of magnesium in 3.00 g of chlorophyll =2.68×3100=0.080g24.3 g of Mg contain =6.02×1023 atoms 0.080 g of Mg contain =6.02×102324.3×0.080=1.98×1021 atoms

Mass of magnesium in 3.00 g of chlorophyll
$= \frac{2.68 \times 3}{100} = 0.080 g$
24.3 g of Mg contain $= 6.02 \times 10^{23}$ atoms
0.080 g of Mg contain $= \frac{6.02 \times 10^{23}}{24.3} \times 0.080$
$= 1.98 \times 10^{21}$ atoms