Answer: To Separate two water-soluble compounds first concentrate the reaction mixture by vacuum evaporation and then partial crystallization at various temperatures .
Explanation:
Im not sure if its right but if its wrong, Im sorry
Answer:
2.13 × 10²² moles
Explanation:
Relation between Mole and Mass is,
Mole = Mass / M.Mass
Putting values,
Mole = 2.3 × 10²⁴ g / 107.87 g/mol
Mole = 2.13 × 10²² moles
27 I think beacuse if you subtract
Atoms of sulfur = 9.60⋅g32.06⋅g⋅mol−1×6.022×1023⋅mol−1 . Because the units all cancel out, the answer is clearly a number, ≅2×1023 as required.