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Answer to Question #52246 in Physical Chemistry for vi

Question #52246
1. ___________ is the S.I unit for amount of substance.
Metre
Gram
Dozen
Mole
2 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
3 If 30 g of a substance occupies a volume of 25 cm3, calculate its density on S.I units.
1.2 g/cm3
1.2 kg/m3
0.0012 g/cm3
0.0012 kg/m3
4 Magnetic attraction can be used to separate objects made of _____________.
wood
copper
plastic
ceramic
5 In fractional distillation, a mixture of liquids is separated based on their ___________.
boiling points
solubility
density
chemical composition
6 Magnetic attraction can be used to separate objects made of ____________.
wood
copper
plastic
ceramic
Expert's answer
Mole
the liquid that drains through the filter paper
0.0012 kg/m3
copper
boiling points
copper

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