Question

calculate the molecure weight of the following h2so4,feso4,h2o,km4o4,p2o5 ​

Answer 1

Explanation:

The balanced equation can be written as:

2KMnO

4

+8H

2

SO

4

+10FeSO

4

→K

2

SO

4

+2MnSO

4

+5Fe

2

(SO

4

)

3

+8H

2

O

Therefore (D) is the correct answer.

Answer 2

Answer:

h2so4= 2×1+32+4×16=98

feso4= 56+32+4+×16=152

kmno4= 39+55+64= 158

p2o5= 62+80 = 142