A mixture of kerosene and petrol which are miscible with each other can be separated by distillation. Method Take a mixture in a distillation flask. Β Fit it with a thermometer. Arrange the apparatus as shown in the figure. Heat the mixture slowly. Petrol vaporises first as it has lower boiling pointRead more
A mixture of kerosene and petrol which are miscible with each other can be separated by distillation. Method
Take a mixture in a distillation flask.
Β Fit it with a thermometer.
Arrange the apparatus as shown in the figure.
Heat the mixture slowly.
Petrol vaporises first as it has lower boiling point. It condenses in the condenser and is collected from the condenser outlet.
Β Kerosene is left behind in the distillation flask.
Mass of solute (sodium chloride) = 36 g Mass of solvent (water) = 100 g Mass of solution = Mass of solute + Mass of solvent = 36 g + 100 g = 136 g Concentration (mass by mass percentage) of the solution =πππ π ππ π πππ’π‘π / πππ π ππ π πππ£πππ‘Γ100 % =36/136Γ100 % =26.4 %
Mass of solute (sodium chloride) = 36 g
Mass of solvent (water) = 100 g
Mass of solution = Mass of solute + Mass of solvent
= 36 g + 100 g = 136 g
Concentration (mass by mass percentage) of the solution
=πππ π ππ π πππ’π‘π / πππ π ππ π πππ£πππ‘Γ100 %
=36/136Γ100 %
=26.4 %
Sol They are heterogeneous in nature. They scatter a beam of light and hence show Tyndall effect. They are quite stable. Solution They are homogeneous in nature. They do not scatter a beam of light and hence do not show Tyndall effect. Examples of solution are: salt in water, sugar in water. SuspensRead more
Sol
They are heterogeneous in nature. They scatter a beam of light and hence show Tyndall effect. They are quite stable.
Solution
They are homogeneous in nature. They do not scatter a beam of light and hence do not show Tyndall effect. Examples of solution are: salt in water, sugar in water.
Suspension
They are heterogeneous in nature. They scatter a beam of light and hence show Tyndall effect. Examples of suspension are: sand in water, dusty air.
A homogeneous mixture is a mixture having a uniform composition throughout the mixture. It has no visible boundaries of separation between its constituents. For example, mixtures of salt in water, sugar in water, copper sulphate in water, iodine in alcohol, alloy, and air have uniform compositions tRead more
A homogeneous mixture is a mixture having a uniform composition throughout the mixture. It has no visible boundaries of separation between its constituents. For example, mixtures of salt in water, sugar in water, copper sulphate in water, iodine in alcohol, alloy, and air have uniform compositions throughout the mixtures.
On the other hand, a heterogeneous mixture is a mixture having a non-uniform composition throughout the mixture. It has visible boundaries of separation between its constituents. For example, composition of mixtures of sodium chloride and iron fillings, salt and sulphur, oil and water, chalk powder in water, wheat flour in water, milk and water are not uniform throughout the mixtures.
Homogeneous mixtures Homogeneous mixtures have uniform composition. It has no visible boundaries of separation between its constituents. Heterogeneous mixtures Heterogeneous mixtures have non uniform composition. It has visible boundaries of separation between its constituents.
Homogeneous mixtures
Homogeneous mixtures have uniform composition.
It has no visible boundaries of separation between its constituents.
Heterogeneous mixtures
Heterogeneous mixtures have non uniform composition.
It has visible boundaries of separation between its constituents.
A material that is composed of only one type of particles is called pure substance. All the constituent particles of a pure substance have same chemical nature.
A material that is composed of only one type of particles is called pure substance. All the constituent particles of a pure substance have same chemical nature.
Steam at 100Β°C will produce more severe bums as extra heat is hidden in it called latent heat whereas the boiling water does not have this hidden heat.
Steam at 100Β°C will produce more severe bums as extra heat is hidden in it called latent heat whereas the boiling water does not have this hidden heat.
Ice at 273 K will absorb heat energy or latent heat from the medium to overcome the fusion to become water. Hence the cooling effect of ice is more than the water at same temperature because water does not absorb this extra heat from the medium.
Ice at 273 K will absorb heat energy or latent heat from the medium to overcome the fusion to become water. Hence the cooling effect of ice is more than the water at same temperature because water does not absorb this extra heat from the medium.
Name the technique to separate salt from sea-water.
Evaporation
Evaporation
See lessName the technique to separate butter from curd.
Butter can be separated from curd by the technique called centrifugation.
Butter can be separated from curd by the technique called centrifugation.
See lessHow will you separate a mixture containing kerosene and petrol (difference in their boiling points is more than 25ΒΊC), which are miscible with each other?
A mixture of kerosene and petrol which are miscible with each other can be separated by distillation. Method Take a mixture in a distillation flask. Β Fit it with a thermometer. Arrange the apparatus as shown in the figure. Heat the mixture slowly. Petrol vaporises first as it has lower boiling pointRead more
A mixture of kerosene and petrol which are miscible with each other can be separated by distillation.
Method
- Take a mixture in a distillation flask.
- Β Fit it with a thermometer.
- Arrange the apparatus as shown in the figure.
- Heat the mixture slowly.
- Petrol vaporises first as it has lower boiling point. It condenses in the condenser and is collected from the condenser outlet.
- Β Kerosene is left behind in the distillation flask.
See lessTo make a saturated solution, 36 g of sodium chloride is dissolved in 100 g of water at 293 K. Find its concentration at this temperature.
Mass of solute (sodium chloride) = 36 g Mass of solvent (water) = 100 g Mass of solution = Mass of solute + Mass of solvent = 36 g + 100 g = 136 g Concentration (mass by mass percentage) of the solution =πππ π ππ π πππ’π‘π / πππ π ππ π πππ£πππ‘Γ100 % =36/136Γ100 % =26.4 %
Mass of solute (sodium chloride) = 36 g
Mass of solvent (water) = 100 g
Mass of solution = Mass of solute + Mass of solvent
= 36 g + 100 g = 136 g
Concentration (mass by mass percentage) of the solution
See less=πππ π ππ π πππ’π‘π / πππ π ππ π πππ£πππ‘Γ100 %
=36/136Γ100 %
=26.4 %
How are sol, solution and suspension different from each other?
Sol They are heterogeneous in nature. They scatter a beam of light and hence show Tyndall effect. They are quite stable. Solution They are homogeneous in nature. They do not scatter a beam of light and hence do not show Tyndall effect. Examples of solution are: salt in water, sugar in water. SuspensRead more
Sol
They are heterogeneous in nature. They scatter a beam of light and hence show Tyndall effect. They are quite stable.
Solution
They are homogeneous in nature. They do not scatter a beam of light and hence do not show Tyndall effect. Examples of solution are: salt in water, sugar in water.
Suspension
They are heterogeneous in nature. They scatter a beam of light and hence show Tyndall effect. Examples of suspension are: sand in water, dusty air.
See lessDifferentiate between homogeneous and heterogeneous mixtures with examples.
A homogeneous mixture is a mixture having a uniform composition throughout the mixture. It has no visible boundaries of separation between its constituents. For example, mixtures of salt in water, sugar in water, copper sulphate in water, iodine in alcohol, alloy, and air have uniform compositions tRead more
A homogeneous mixture is a mixture having a uniform composition throughout the mixture. It has no visible boundaries of separation between its constituents. For example, mixtures of salt in water, sugar in water, copper sulphate in water, iodine in alcohol, alloy, and air have uniform compositions throughout the mixtures.
On the other hand, a heterogeneous mixture is a mixture having a non-uniform composition throughout the mixture. It has visible boundaries of separation between its constituents. For example, composition of mixtures of sodium chloride and iron fillings, salt and sulphur, oil and water, chalk powder in water, wheat flour in water, milk and water are not uniform throughout the mixtures.
See lessList the points of differences between homogeneous and heterogeneous mixtures.
Homogeneous mixtures Homogeneous mixtures have uniform composition. It has no visible boundaries of separation between its constituents. Heterogeneous mixtures Heterogeneous mixtures have non uniform composition. It has visible boundaries of separation between its constituents.
Homogeneous mixtures
Homogeneous mixtures have uniform composition.
It has no visible boundaries of separation between its constituents.
Heterogeneous mixtures
Heterogeneous mixtures have non uniform composition.
It has visible boundaries of separation between its constituents.
See lessWhat is meant by a pure substance?
A material that is composed of only one type of particles is called pure substance. All the constituent particles of a pure substance have same chemical nature.
A material that is composed of only one type of particles is called pure substance. All the constituent particles of a pure substance have same chemical nature.
See lessWhat produces more severe burns, boiling water or steam?
Steam at 100Β°C will produce more severe bums as extra heat is hidden in it called latent heat whereas the boiling water does not have this hidden heat.
Steam at 100Β°C will produce more severe bums as extra heat is hidden in it called latent heat whereas the boiling water does not have this hidden heat.
See lessWhy is ice at 273 K more effective in cooling than water at the same temperature?
Ice at 273 K will absorb heat energy or latent heat from the medium to overcome the fusion to become water. Hence the cooling effect of ice is more than the water at same temperature because water does not absorb this extra heat from the medium.
Ice at 273 K will absorb heat energy or latent heat from the medium to overcome the fusion to become water. Hence the cooling effect of ice is more than the water at same temperature because water does not absorb this extra heat from the medium.
See less