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Hardness of Water and Treatment

The formula f...

Question

The formula for sodium zeolite which is used in permutit process for softening water is :

A

N a_{2} O . A l_{2} O_{3} . y S i O_{2} . x H_{2} O

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B

N a_{2} . A l_{2} . S i_{2} O_{4} . x H_{2} O

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C

N a_{2} O . A l O_{3} . S i O_{4} . x H_{2} O

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D

K_{2} A l_{2} S i O_{8} . x H_{2} O

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Solution

The correct option is A $N a_{2} O . A l_{2} O_{3} . y S i O_{2} . x H_{2} O$
Sodium zeolite used in permutit process for softening water has the chemical formula of $N a_{2} O . A l_{2} O_{3} . y S i O_{2} . x H_{2} O$ , where the range of values of $x = 2 - 6$ and $y = 2 - 10$ .

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Similar questions

Q. What is the value of X in the given chemical formula of crystalline borax,

N a_{2} [B_{4} O_{5} (O H)_{4}] . X H_{2} O

?

Q. In the following sets of reactants which two sets exhibit the amphoteric character of

A l_{2} O_{3} . x H_{2} O

A l_{2} O_{3} . x H_{2} O

O H^{-} (a q)

A l_{2} O_{3} . x H_{2} O

H_{2} O (l)

A l_{2} O_{3} . x H_{2} O

H^{+} (a q)

A l_{2} O_{3} . x H_{2} O

N H_{3} (a q)

500 m L

2 M H C l . 100 m L

2 M H_{2} S O_{4}

and one g equivalent of a monoacidic alkali are mixed together.

30 m L

of this solution required

20 m L

N a_{2} C O_{3} . x H_{2} O

solution obtained by dissolving

143 g N a_{2} C O_{3} . x H_{2} O

in one litre solution. Calculate water of crystallisation of

N a_{2} C O_{3} . x H_{2} O .

0.7 g m

{N a}_{2} {C O}_{3} . x H_{2} O

is dissolved in

100 m l

20 m l

of which required

19.8 m l

0.1 N

H C l

x

N a_{2} S O_{4} . x H_{2} O

50 %

H_{2} O

x

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