Learn more about our help with Assignments: Physical Chemistry
Search & Filtering
Physical Chemistry
In fractional distillation, a mixture of liquids is separated based on their ___________.
Physical Chemistry
In gaseous solution the solvent is
Physical Chemistry
Which group of elements in the periodic table exhibits semiconductor behaviour?
If 30 g of a substance occupies a volume of 25 cm3, calculate its density on S.I units.
13 Fractional distillation cannot be used to _
14 Distillation can be used to separate ________
15 What is the appropriate S.I. unit for distance?
16 Convert 10 kg to mg.
17 In filtration, the term ‘filtrate’ refers to _____________.
the solid that remains on the filter paper
the liquid that drains through the filter paper.
the type of filter paper used.
the mixture before separation
18 Which one of the following can be separated by adding water, stirring and filtering?
19 In fractional distillation, a mixture of liquids is separated based on their ___________.
boiling points
solubility
density
chemical composition
20 Distillation can be used to separate __________.
a soluble solid from a solution
a liquid from a solution
a solid from a solid
an insoluble solid from a solution
If 30 g of a substance occupies a volume of 25 cm3, calculate its density on S.I units.
13 Fractional distillation cannot be used to _
14 Distillation can be used to separate ________
15 What is the appropriate S.I. unit for distance?
16 Convert 10 kg to mg.
17 In filtration, the term ‘filtrate’ refers to _____________.
the solid that remains on the filter paper
the liquid that drains through the filter paper.
the type of filter paper used.
the mixture before separation
18 Which one of the following can be separated by adding water, stirring and filtering?
19 In fractional distillation, a mixture of liquids is separated based on their ___________.
boiling points
solubility
density
chemical composition
20 Distillation can be used to separate __________.
a soluble solid from a solution
a liquid from a solution
a solid from a solid
an insoluble solid from a solution
Physical Chemistry
Why Di propylene glycol's color changes from colorless into yellowish in storage tank without any disturbance? How will it happens? Please help me and also attach some articles which may help me as soon as possible!
Physical Chemistry
MgNH4PO4.6H20 has solubility 0.023g/100mL water. If 5.02g sample washed with 20mL water, what fraction MgNH4PO4.6H2O would be lost?
Physical Chemistry
Temperature of partially miscible liquid
Physical Chemistry
Which one of the following statements is not consistent with the kinetic-molecular theory of gases?
- Individual gas molecules are relatively far apart.
- The actual volume of the gas molecules themselves is very small compared to the volume occupied by the gas at ordinary temperatures and pressures.
- The average kinetic energies of different gases are different at the same temperature.
- There is no net gain or loss of the total kinetic (translational) energy in collisions between gas molecules.
- Individual gas molecules are relatively far apart.
- The actual volume of the gas molecules themselves is very small compared to the volume occupied by the gas at ordinary temperatures and pressures.
- The average kinetic energies of different gases are different at the same temperature.
- There is no net gain or loss of the total kinetic (translational) energy in collisions between gas molecules.
Physical Chemistry
The process of separating a pure solid from a solution is known as
Physical Chemistry
Which of the following groups of elements in the periodic table exhibits semiconductor behaviour
Physical Chemistry
a compound is composed of 4.80 grams of carbon and .40grams of hydrogen. the molecular mass is 78.o g/mol. what is the molecular formula of the compound
Very professional, high quality, and always delivers on time.
#333702 on Dec 2022
#333702 on Dec 2022