English

What is the Concentration of a Solution Which Contains 16 G of Urea in 120 G of Solution ?

Advertisements
Advertisements

Question

What is the concentration of a solution which contains 16 g of urea in 120 g of solution ?

Short/Brief Note
Sum
Advertisements

Solution

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%.

shaalaa.com
  Is there an error in this question or solution?
Chapter 2: Is Matter Around Us Pure - Very Short Answers [Page 79]

APPEARS IN

Lakhmir Singh Chemistry [English] Class 9
Chapter 2 Is Matter Around Us Pure
Very Short Answers | Q 11 | Page 79

RELATED QUESTIONS

The smallest unit of matter that exists freely in nature is called ...........


Liquids have definite volume but do not have definite shape.


Define the following term  of Matter .


When a gas jar containing air is inverted over a gas jar containing bromine vapour, the red-brown bromine vapour diffuse into air. Explain how bromine vapour diffuse into air.


Name the property which enables metals to be drawn into wires.


Fill in the following blanks with suitable words :

Brass is an alloy which is considered a ..............


What elements do the following compounds contain ?

Sugar, Common salt


State any two properties for believing that aluminium is a metal.


What happens when the temperature of a saturated sugar solution is increased ?


Fill in the following blank :

A colloid is a ..............mixture and its components can be separated by the technique known as ...............


Classify the following into true solutions and colloidal solutions:

Ink, Salt solution, Starch solution, Blood, Sugar solution


Explain what happens when a beam of light is passed through a colloidal solution.


Describe a method to separate a mixture of camphor and sand.


Which of the following cannot be separated from air by the process of fractional distillation ?


There are three liquids A, B and C, all having different densities and different boiling points. Liquids A and C are organic in nature whereas liquid B is considered to be inorganic. When liquids A and B are put together in a container, they form a single layer. On the other hand, when, liquids B and C are mixed, they form two separate layers :

(a) Which process will you use to separate a mixture of A and B ?

(b) Which method will you use to separate a mixture of B and C ?

(c) Name the liquids which would behave like (i) A (ii) B and (iii) C.


Explain the meaning of the term matter with special reference to the term ‘substance’.


Wipe the board with a duster and then tap the duster against the table. What do you see?


Rusting of an article made up of iron is called


Liquids have ______.


Write a scientific reason.

Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×