Приготавливать смеси и растворы в соответствии с рецептурой

1.    What is the concentration?

• It is expressed by the number of equivalents of the solvent/solute contained in 1 liter of solution

• It is expressed by the number of equivalents of the substance contained in 1 liter of solvent

• It is expressed by the number of equivalents of the substance contained in 1 liter of solution

What kind of characteristic has blue paper filter?

• D: 1-2,5; charac.: finely porous, for large precipitation

• D: 3; charac.: high density, for very fine precipitation

• D: 1-2,5; charac.: finely porous, for fine-grained precipitation

W1.    hich of the following does not influence filtration?

• pH

• Density

• Temperature

Through which filter was hot filtration carried out?

• Low-pass filter

• Folded filter

• High-pass filter

What is the hydraulics?

• Is the specific potential energy of the liquid pressure

• Is the force generated by the pressure which is equal to the product

• Is a technology and science using engineering, chemistry and other science involving the mechanical properties

What is the number of modes of solute contained in 1 kg of solvent?

• Concentration by mass

• Molar concentration/ molarity

• Molal concentration/molality

What is a piezometric pressure?

• Pressure that any fluid in a confined space exerts

• Pressure exerted by gas particles

• Specific potential energy of the liquid pressure

What are the filter materials which are used in various organic and inorganic substances within the lab?

• Fibrous (cotton wool, wool, various fabrics, etc.)

• Zeolite

• Polypropelene

Where the filter papers are used and for which purpose?

• In factory to obtain heavy substances

• In laboratory experiments to separate fine solid from liquid particles

• In manufacture to separate oil mixtures

What is hydrostatics study?

• Both of them

• The movement of a fluid

• The equilibrium or state of rest of  fluid