Class 11 Exam > Class 11 Questions > Number of atoms is 560 g of Fe (atomic mass =...
Start Learning for Free
Number of atoms is 560 g of Fe (atomic mass = 56 g mol-1)
- a)Is twice that of 70 g N (Nitrogen)
- b)Is half that of 20 g H(Hydrogen)
- c)Both are correct
- d)none is correct
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Number of atoms is 560 g of Fe (atomic mass = 56 g mol-1)a)Is twice th...
Fe atom= 560/56 =10 mole
= 10 x NA atom
option(A) = 5 mol
5 x NA
option (B) = 20/1 = 20
20 x NA
= 10 x NA atom
option(A) = 5 mol
5 x NA
option (B) = 20/1 = 20
20 x NA
Most Upvoted Answer
Number of atoms is 560 g of Fe (atomic mass = 56 g mol-1)a)Is twice th...
Given:
Mass of Fe = 560 g
Atomic mass of Fe = 56 g/mol
a) Number of atoms in 560 g of Fe is twice that of 70 g N (Nitrogen)
Atomic mass of N = 14 g/mol
Number of atoms in 70 g of N = (70 g / 14 g/mol) x (6.02 x 10^23) = 3.01 x 10^24 atoms
Number of atoms in 560 g of Fe = (560 g / 56 g/mol) x (6.02 x 10^23) = 6.02 x 10^24 atoms
Therefore, the number of atoms in 560 g of Fe is twice that of 70 g N.
b) Number of atoms in 560 g of Fe is half that of 20 g H (Hydrogen)
Atomic mass of H = 1 g/mol
Number of atoms in 20 g of H = (20 g / 1 g/mol) x (6.02 x 10^23) = 1.20 x 10^25 atoms
Number of atoms in 560 g of Fe = (560 g / 56 g/mol) x (6.02 x 10^23) = 6.02 x 10^24 atoms
Therefore, the number of atoms in 560 g of Fe is not half that of 20 g H.
c) Both statements are correct
From the above calculations, we can see that the first statement is correct and the second statement is incorrect. Therefore, option C is the correct answer.
Mass of Fe = 560 g
Atomic mass of Fe = 56 g/mol
a) Number of atoms in 560 g of Fe is twice that of 70 g N (Nitrogen)
Atomic mass of N = 14 g/mol
Number of atoms in 70 g of N = (70 g / 14 g/mol) x (6.02 x 10^23) = 3.01 x 10^24 atoms
Number of atoms in 560 g of Fe = (560 g / 56 g/mol) x (6.02 x 10^23) = 6.02 x 10^24 atoms
Therefore, the number of atoms in 560 g of Fe is twice that of 70 g N.
b) Number of atoms in 560 g of Fe is half that of 20 g H (Hydrogen)
Atomic mass of H = 1 g/mol
Number of atoms in 20 g of H = (20 g / 1 g/mol) x (6.02 x 10^23) = 1.20 x 10^25 atoms
Number of atoms in 560 g of Fe = (560 g / 56 g/mol) x (6.02 x 10^23) = 6.02 x 10^24 atoms
Therefore, the number of atoms in 560 g of Fe is not half that of 20 g H.
c) Both statements are correct
From the above calculations, we can see that the first statement is correct and the second statement is incorrect. Therefore, option C is the correct answer.
Free Test
FREE
| Start Free Test |
Community Answer
Number of atoms is 560 g of Fe (atomic mass = 56 g mol-1)a)Is twice th...
Let N be Avogadro's number.
The atomic/molar masses of Fe,N2 and H2 are 56 g/mol, 28 g/mol and 2 g/mol respectively.
560 g Fe=56g/mol560g=10 mol Fe=10N atoms.
70 g N2=28g/mol70g=2.5 moles N2=2×2.5N=5N atoms.
Twice of this corresponds to 2×5N=10N.
20 g of H2=2g/mol20g=10 mole H2=2×10N=20N atoms.
Half of this =0.5×20N=10N atoms.
The atomic/molar masses of Fe,N2 and H2 are 56 g/mol, 28 g/mol and 2 g/mol respectively.
560 g Fe=56g/mol560g=10 mol Fe=10N atoms.
70 g N2=28g/mol70g=2.5 moles N2=2×2.5N=5N atoms.
Twice of this corresponds to 2×5N=10N.
20 g of H2=2g/mol20g=10 mole H2=2×10N=20N atoms.
Half of this =0.5×20N=10N atoms.
|
Explore Courses for Class 11 exam
|
|
Top Courses for Class 11View all
Question Description
Number of atoms is 560 g of Fe (atomic mass = 56 g mol-1)a)Is twice that of 70 g N (Nitrogen)b)Is half that of 20 g H(Hydrogen)c)Both are correctd)none is correctCorrect answer is option 'C'. Can you explain this answer? for Class 11 2025 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Number of atoms is 560 g of Fe (atomic mass = 56 g mol-1)a)Is twice that of 70 g N (Nitrogen)b)Is half that of 20 g H(Hydrogen)c)Both are correctd)none is correctCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 11 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Number of atoms is 560 g of Fe (atomic mass = 56 g mol-1)a)Is twice that of 70 g N (Nitrogen)b)Is half that of 20 g H(Hydrogen)c)Both are correctd)none is correctCorrect answer is option 'C'. Can you explain this answer?.
Number of atoms is 560 g of Fe (atomic mass = 56 g mol-1)a)Is twice that of 70 g N (Nitrogen)b)Is half that of 20 g H(Hydrogen)c)Both are correctd)none is correctCorrect answer is option 'C'. Can you explain this answer? for Class 11 2025 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Number of atoms is 560 g of Fe (atomic mass = 56 g mol-1)a)Is twice that of 70 g N (Nitrogen)b)Is half that of 20 g H(Hydrogen)c)Both are correctd)none is correctCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 11 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Number of atoms is 560 g of Fe (atomic mass = 56 g mol-1)a)Is twice that of 70 g N (Nitrogen)b)Is half that of 20 g H(Hydrogen)c)Both are correctd)none is correctCorrect answer is option 'C'. Can you explain this answer?.
Solutions for Number of atoms is 560 g of Fe (atomic mass = 56 g mol-1)a)Is twice that of 70 g N (Nitrogen)b)Is half that of 20 g H(Hydrogen)c)Both are correctd)none is correctCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 11.
Download more important topics, notes, lectures and mock test series for Class 11 Exam by signing up for free.
Here you can find the meaning of Number of atoms is 560 g of Fe (atomic mass = 56 g mol-1)a)Is twice that of 70 g N (Nitrogen)b)Is half that of 20 g H(Hydrogen)c)Both are correctd)none is correctCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Number of atoms is 560 g of Fe (atomic mass = 56 g mol-1)a)Is twice that of 70 g N (Nitrogen)b)Is half that of 20 g H(Hydrogen)c)Both are correctd)none is correctCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for Number of atoms is 560 g of Fe (atomic mass = 56 g mol-1)a)Is twice that of 70 g N (Nitrogen)b)Is half that of 20 g H(Hydrogen)c)Both are correctd)none is correctCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of Number of atoms is 560 g of Fe (atomic mass = 56 g mol-1)a)Is twice that of 70 g N (Nitrogen)b)Is half that of 20 g H(Hydrogen)c)Both are correctd)none is correctCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Number of atoms is 560 g of Fe (atomic mass = 56 g mol-1)a)Is twice that of 70 g N (Nitrogen)b)Is half that of 20 g H(Hydrogen)c)Both are correctd)none is correctCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice Class 11 tests.
|
|
Explore Courses for Class 11 exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup