At 20°C,100g of 10% salt solution was treated as follows to obtain the mass fraction of solute in the solution At 20°C,100 g of 10% salt solution was treated as follows: Calculate the mass fraction of the solute in the resulting solution (assuming that each No solute precipitation or residue). (1) What is the mass fraction of the solute after evaporation of 10 g of water? (2) What is the mass fraction of solute after adding 10g NaCl? (3) What is the mass fraction of solute after adding 10g NaCl and 10g water? (4) What is the mass fraction of the solute after adding 100g of 15% NaCl? (5) What is the mass fraction of the solute after adding 20 g of water? (Please write out the calculation process)

At 20°C,100g of 10% salt solution was treated as follows to obtain the mass fraction of solute in the solution At 20°C,100 g of 10% salt solution was treated as follows: Calculate the mass fraction of the solute in the resulting solution (assuming that each No solute precipitation or residue). (1) What is the mass fraction of the solute after evaporation of 10 g of water? (2) What is the mass fraction of solute after adding 10g NaCl? (3) What is the mass fraction of solute after adding 10g NaCl and 10g water? (4) What is the mass fraction of the solute after adding 100g of 15% NaCl? (5) What is the mass fraction of the solute after adding 20 g of water? (Please write out the calculation process)

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At 20°C, the solubility of sodium chloride is 36g. After adding 5g salt crystal to 100g saturated sodium chloride solution, the mass fraction of the solution is? That 100g means solvent? Doesn't it say solution after it? At 20°C, the solubility of sodium chloride is 36g. After adding 5g salt-eating crystals to 100 g saturated sodium chloride solution, the mass fraction of the solution was? That 100g means solvent? Doesn't it say solution after it?

Because the solution is saturated, the solute ratio solvent =36:100, solute ratio solution =36:136 is about 26.5%(sodium chloride can no longer be dissolved)