Preparation for final part 2.3

What is the concentration? 

• 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 

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

What kind of characteristic has blue paper filter? 

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

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

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

Which of the following does not influence filtration? 

• Temperature 

• Density 

• pH 

Through which filter was hot filtration carried out? 

• Folded filter 

• Low-pass filter 

• High-pass filter 

What is the hydraulics? 

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

• Is the specific potential energy of the liquid pressure 

• 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? 

• Molal concentration/molality 

• Molar concentration/molarity 

• Concentration by mass 

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.) 

• Polypropelene  

• Zeolite 

Where the filter papers are used and for which purpose?

• In manufacture to separate oil mixtures 

• In laboratory experiments to separate fine solid from liquid particles 

• In factory to obtain heavy substances 

What is hydrostatics study? 

• The movement of a fluid 

• The equilibrium or state of rest of  fluid 

• Both of them