No products in the cart.

calculate the mass of sodium sulphate …

CBSE, JEE, NEET, CUET

CBSE, JEE, NEET, CUET

Question Bank, Mock Tests, Exam Papers

NCERT Solutions, Sample Papers, Notes, Videos

calculate the mass of sodium sulphate required to prepare its 20% ( mass percent ) solution in 100 g of water ?

Posted by Praveen Bhargav 3 years, 10 months ago

CBSE > Class 09 > Science

2 answers

Sia ? 3 years, 10 months ago

Let the mass of sodium sulphate required be 'x' g
The mass of water = 100 g
The mass of solution =(mass of sodium sulphate + mass of water) = (x + 100)g
Percentage of sodium sulphate in solution $=\;\frac{Mass\;of\;sodium\;sulphate}{Mass\;of\;solution}\times100$
$20=\frac{x}{x+100} \times 100$
20x + 2000 = 100x
80x = 2000
x = $\frac{2000}{80}$
= 25 g
Therefore, the mass of sodium sulphate required is 25 g.

Praveen Bhargav 3 years, 6 months ago

Thanks

ANSWER

http://mycbseguide.com/examin8/

Related Questions

A boxer moves his head backward when his opponent blows a punch.

Posted by Prasanna Mendon 1 month ago

CBSE > Class 09 > Science

1 answers

What is ER??

Posted by Maitri Patel 1 year, 1 month ago

CBSE > Class 09 > Science

1 answers

If one mole of carbon atoms weighs 12 grams, what is the mass (in grams) of 1 atom of carbon?

Posted by Anmol Kumar 1 year ago

CBSE > Class 09 > Science

0 answers

Oil tankers containing oil ar not filled up to the brim Give reason

Posted by Moksh Bhatia 1 year, 1 month ago

CBSE > Class 09 > Science

0 answers

What are the parts of a flower

Posted by Op Garg 1 year, 1 month ago

CBSE > Class 09 > Science

2 answers

Why is it advised to tie any luggage kept on the roof of a bus with a rope ?

Posted by Huda Fatima 1 year, 1 month ago

CBSE > Class 09 > Science

2 answers

Solid can't change its shape! What about a rubber band, can it's change its shape or stretching?Is it a solid?

Posted by Devi Manoj 1 year, 1 month ago

CBSE > Class 09 > Science

1 answers

Define speed and velocity provide one similarity and one difference between them

Posted by Himanshi Sharma 1 year, 1 month ago

CBSE > Class 09 > Science

0 answers

Assertion:Sun appears to rise in the east and set in the west Reason:The earth revolves around the sun in uniform circular motion

Posted by Tejal Sawant 1 year, 1 month ago

CBSE > Class 09 > Science

3 answers

WHAT IS UNIT OF LIFE

Posted by Yash Dwivedi 1 year, 1 month ago

CBSE > Class 09 > Science

3 answers

myCBSEguide App

myCBSEguide

Trusted by 1 Crore+ Students

Test Generator

Test Generator

Create papers online. It's FREE.

CUET Mock Tests

CUET Mock Tests

75,000+ questions to practice only on myCBSEguide app

Google Play

Download myCBSEguide App