Advertisements
Advertisements
प्रश्न
What is the concentration of a solution which contains 16 g of urea in 120 g of solution ?
उत्तर
Given, Mass of urea = 16 gm
Mass of solution = 120 gm
`"concentration" = "mass of solute"/"mass of solute + mass of solvent"xx100`
`=16/20xx100`
= 13.333%
Therefore, the concentration is 13.333%.
APPEARS IN
संबंधित प्रश्न
The molecules can move freely anywhere in
What do you mean by the inter-molecular spaces? How do they vary in different states of matter?
What are the conditions for 'something' to be called 'matter'?
When a crystal of potassium permanganate is placed in a beaker, its purple colour spreads throughout the water. What does this observation tell us about the nature of potassium permanganate and water?
What are the characteristics of matter?
The three important metalloids are.............................. and ..........................
Fill in the following blanks with suitable words :
The elements which are sonorous are called ..........................
Name a metal which can be easily cut with a knife.
Out of a colloid, solution and a suspension :
which one has the largest particles ?
What happens when the temperature of a saturated sugar solution is increased ?
Define solvent.
Explain what happens when a beam of light is passed through a colloidal solution.
9.72 g of potassium chloride dissolves in 30 g of water at 70°C. Calculate the solubility of potassium chloride at that temperature.
What is meant by a solution ? Give two examples of solutions.
Fill in the following blanks with suitable words :
If a mixture contains iron filings as one of the constituents, it can be separated by using a .......................
How is the impurity of iron present in several substances removed in industries ?
How is cream separated from milk ?
Define the term matter.
Which among the following is not a matter?
The fluidity of solids: ______.
