Question

chlorophyll, the green coloring matter in plants involved in photosynthesis contains 2.7% magnesium by mass . calculate the number of magnesium atoms in 1.0g of chlorophyll.........




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Answer 1

Answer:

Chlorophyll,the green colouring matters of plants responsible for photosynthesis contains 2.68%of magnesium by mass.Calculate the number of magnesium atoms in 2.00 gram of chlorophyll.

Mass of Mg present in 2g of Chlorophyll = (2.68/100) x 2 g = 0.054 g

Also that, 24 g of Mg contain 6.023 x 1023 atoms of Mg

-------------- 1g of Mg = (6.023 x 1023)/24 atoms of Mg

Hence, 0.054 g of Mg will contain (6.023 x 1023/24 ) x 0.054 atoms of Mg = 1.34 x 1023 atoms of Mg present in 2.00 gram of chlorophyll

I hope it helps you

Answer 2

Answer:

Chlorophyll, the green colouring matter of plants, contains 2.68% of magnesium by mass.