Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Chemistry
Chemistry
Problem
When x molecules are removed from 200 mg of
N
2
O
N_2O
N
2
O
,
2.89
×
10
−
3
2.89 \times 10^{-3}
2.89
×
1
0
−
3
moles of
N
2
O
N_2O
N
2
O
are left. X will be (1)
10
20
10^{20}
1
0
20
molecules (2)
10
10
10^{10}
1
0
10
molecules (3) 21 molecules (4)
10
21
10^{21}
1
0
21
molecules
Browse the problem library