Allied solutions

Allied solutions

Grade 6

Water | Exercise

Question 12

Q12) If ‘X’ g of potassium nitrate is added to 100g of water at 60°C and salt dissolves completely then -

  1. Is ‘X’ g the solubility of potassium nitrate at 60°C
  2. Is the solution formed - saturated or unsaturated?
  3. If on addition ‘X’ + ‘Y’ of potassium nitrate to the same amount of water at the same temperature and the solute now just remains behind after stirring then -
  4. Is the solution now - saturated or unsaturated?
  5. Is ‘X’ + ‘Y’ g the solubility of potassium nitrate at 60°C

Solution:

When ‘X’ g of potassium nitrate is added to 100 g of water, and stirred well at 60°C. ‘X’ g of solute dissolves completely in water, so more solute will be added and again stirred thoroughly. The solute continues to dissolve, hence the solution is unsaturated.

Now, ‘X’ + ‘Y’ g of solute is added to water and the solute remains behind even after stirring. The solution is now saturated.

Solubility of potassium nitrate is ‘X’ + ‘Y’ g

Still have questions? Our expert teachers can help you out

Book a free class now

Want to top your chemistry exam ?

Learn from an expert tutor.

Book a free class now
subject-cta

Question 12

Q12) If ‘X’ g of potassium nitrate is added to 100g of water at 60°C and salt dissolves completely then -

  1. Is ‘X’ g the solubility of potassium nitrate at 60°C
  2. Is the solution formed - saturated or unsaturated?
  3. If on addition ‘X’ + ‘Y’ of potassium nitrate to the same amount of water at the same temperature and the solute now just remains behind after stirring then -
  4. Is the solution now - saturated or unsaturated?
  5. Is ‘X’ + ‘Y’ g the solubility of potassium nitrate at 60°C

Solution:

When ‘X’ g of potassium nitrate is added to 100 g of water, and stirred well at 60°C. ‘X’ g of solute dissolves completely in water, so more solute will be added and again stirred thoroughly. The solute continues to dissolve, hence the solution is unsaturated.

Now, ‘X’ + ‘Y’ g of solute is added to water and the solute remains behind even after stirring. The solution is now saturated.

Solubility of potassium nitrate is ‘X’ + ‘Y’ g

Still have questions? Our expert teachers can help you out

Book a free class now

Want to top your chemistry exam ?

Learn from an expert tutor.

Book a free class now
subject-cta
linkedin instgram facebook youtube
2020 © Quality Tutorials Pvt Ltd All rights reserved
linkedin instgram facebook youtube