MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
Menu
Grade: 12

                        

haemoglobin contains 0.334% of iron by weight. the molecular weight of haemoglobin in approximately 67200. the number of iron atoms present in one molecule of haemoglobin is ? (atomic weight of iron is 56)

4 years ago

Answers : (4)

sohini paul
11 Points
							
100 g haemoglobin contains 0.334 g iron
then, 67200 g haemoglobin contains =224.44 g iron.
 
Now , 56 g iron contains=6.023 * pow(10,23) atoms of iron
then 244.44g contains =26.3*pow(10,23) atoms of iron.
 
now , 6.022*pow(10,23) molecules of haemoglobin=26.3*pow(10,23) atoms of iron
(since 67200g 0f haemoglobin =6.022*pow(10,23)moleculesof haemoglobin)
then, 1 molecule of haemoglobin contains= 4atoms of iron .
4 years ago
Dheeraj jareda
20 Points
							Percentage of Fe = 0.33% molecular weight of haemoglobinWeight of Fe present = (0.33/100) × 67200 = 221.8one Fe weighs 55.8 gTherefore, 221.8/55.8 = 4Hence, 4 atoms of iron are present in one molecule of haemoglobin.
						
3 years ago
Shubham
12 Points
							%by mass of Fe = mass of Fe atoms/molmass×1000.334=x×56/67200×100X=0.334×67200/56×100X=4No. Of Fe atoms are 4
						
2 years ago
ankit singh
480 Points
							
then, 1 molecule of haemoglobin contains= 4atoms of iron ." then, 67200 g haemoglobin contains =224.44 g iron. then 244.44g contains =26.3*pow(10,23) atoms of iron.
2 months ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies


Course Features

  • 731 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution


Course Features

  • 141 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details