Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Chemistry
Chemistry
Problem
What is the molar mass of
Na
2
B
4
O
7
⋅
10
H
2
O
\text{Na}_2\text{B}_4\text{O}_7 \cdot 10\text{H}_2\text{O}
Na
2
B
4
O
7
⋅
10
H
2
O
? a.
278
g mol
−
1
278 \text{ g mol}^{-1}
278
g mol
−
1
b.
381
g mol
−
1
381 \text{ g mol}^{-1}
381
g mol
−
1
c.
146
g mol
−
1
146 \text{ g mol}^{-1}
146
g mol
−
1
d.
238
g mol
−
1
238 \text{ g mol}^{-1}
238
g mol
−
1
Browse the problem library