MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Percentage Composition

Na2SO3. xH2O ...

Question

$N a_{2} S O_{3} . x H_{2} O$ has 50% $H_{2} O$ by mass. Hence, $x$ is:

A

4

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

45

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

6

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

7

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D $7$
$N a_{2} S O_{3} . x H_{2} O$ has 50% $H_{2} O$ .

$∴ \frac{18 x}{126 + 18 x} = \frac{50}{100}$

$∴ x = 7$

Suggest Corrections

thumbs-up

0

Similar questions

Q. Molar ratio of

N a_{2} S O_{3}

H_{2} O

1 : 7

N a_{2} S O_{3} \cdot x H_{2} O

. Hence, mass percentage is :

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

50 %

H_{2} O

x

N a_{2} S O_{3} \cdot y H_{2} O

50 %

H_{2} O

y

A l_{2} (S O_{4})_{3} . x H_{2} O

8.20

A l

by mass. The value of

x / 3

Q. A hydrate of

N a_{2} S O_{3}

50 %

water by mass. It is :

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Percentage Composition and Molecular Formula

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Percentage Composition

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon