Chlorophyll contains 4.8% Mg by mass. Calculate number of Mg atom in 2000 g chlorophyll (atomic weight Mg = 24) :-

Question

Chlorophyll contains 4.8% Mg by mass. Calculate number of Mg atom in 2000 g chlorophyll (atomic weight Mg = 24) :-

Chlorophyll contains 4.8% Mg by mass. Calculate number of Mg atom in 2000 g chlorophyll (atomic weight Mg = 24) :-
A. `N_A`
B. `2N_A`
C. `4 N_A`
D. `6 N_A`

Monjur Alahi

7 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - C
100 g chlorophyll `to` 4.8 g Mg
2000 g Chlorophyll `to 4.8/100xx2000` = 96 g Mg
Number of Mg atoms = Moles x `N_A`
`="Mass"/"Molar mass" xx N_A`
`=96/24xxN_A`
`=4N_A`

7 views Answered 2023-02-05 15:29