Question

the following table
.
the complete the
element
e
ma
P р
4
"Be
_
12.
12
ng
-
12
si
R
15
3)​

Answer 1

Explanation:

Answer

10

5

gms of a sample of water contain 60 gms of MgSO

4

10

6

gms of sample of water contain

10

5

60

×10

6

= 600 gms of MgSO

4

120 gms of MgSO

4

has hardness = 100 ppm

600 gms of MgSO

4

has hardness =

120

100

×600 = 500 ppm