A 400 mg iron capsule contains 100 mg of ferrous fumarate, (CHCOO)2 Fe. The percentage of iron present in it is approximately.
A) 33%
B) 25%
C) 14%
D) 8%
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Answers
Answered by
68
Answer:
The percentage of iron in 400mg iron capsule is 8%.
Explanation:
Step 1 : Calculate the molar mass of ferrous fumarate.
(CHCOO)2 Fe
Molar = 12 × 2 + 1 × 2 + 12 × 2 + 16 × 2 + 16 × 2 + 56 = 170 g/mol
Step 2 : Calculate the mass of iron in Ferrous Fumarate.
56/170 × 100 = 32.94 grams.
Step 3 : Calculate the percentage of Iron in Ferrous fumarate.
32.94/400 × 100% = 8.235%
Step 4 : Give the approximate value by rounding off.
The rounded value is 8%
The correct answer is 8%.
Answered by
15
Explanation:
option D.) 8%
hope this helps you
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