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0,4 mola - 22,4 g
1 mol - x
x = 56 g - tyle wynosi masa molowa tej soli
2.
1 mol NaCl = 58,5 g
4,84 mola - x
x = 283, 14 g
ze stęż. procentowego:
283,14 g - 24 %
x - 100 %
x = 1179,75 g
zatem gęstośćwtnosi:
1179,75 g/ 1000 cm³ = 1,17975 g/cm³