Given a solubility of 36 g of sodium chloride at 20.d egree. C., the mass of sodium chloride in a saturated solution of 100 g of sodium chloride is ___ g The mass of water is __g. When the sodium chloride solid is 18g at 20°C,_g water shall be added to prepare the saturated solution. | Math enthusiast | Mathematical art

Given a solubility of 36 g of sodium chloride at 20.d egree. C., the mass of sodium chloride in a saturated solution of 100 g of sodium chloride is _ g The mass of water is g. When the sodium chloride solid is 18g at 20°C,_g water shall be added to prepare the saturated solution.

Since s/100+s = mass of solute/mass of solution,36/100+36= m1/100, the solution: m1=26.5 g.
Mass of water =100-26.5=74.5 g
Since s/100=mass of solute/mass of solvent,36/100=18/m2, m2=50 g.
S represents solubility
For information only

At 20°C, a maximum of 36 g of salt can be dissolved in 100 g of water, and the solubility of salt at 20°C is

Solubility is the number of grams of a substance that is saturated in 100 grams of solvent (usually water) at a given temperature, so that the solubility of salt at 20°C is 36

RELATED INFORMATIONS

1. At 20°C, the solubility of salt is known to be 36g. Now,50g salt is added to 50g water and fully dissolved, what is the mass fraction of solute in the solution?
2. The solubility of sodium chloride at 20.d egree. C. is known to be 36 g/100 g of water, and the mass value of sodium chloride in saturated sodium chloride solution at 20.d egree. C. is A 200 times 36 divided by 100 B 200 times 36 divided by 100 plus 36 C 200 times 100 divided by 36 D 200 by 36 divided by 100 minus 36
3. Sodium chloride has a solubility of 36 g at 20°C, at which the mass fraction of solute in the sodium chloride solution can not be 20%26.4%25%30% Sodium chloride has a solubility of 36 grams at 20 degrees Celsius, at which the mass fraction of solute in the sodium chloride solution is unlikely to be 20%26.4%25%30%
4. At 20°C, the salt solution with a solute content of 5%(mass fraction) of 100 g is treated as follows, and the solution in which the solute content increases every time is fully dissolved 1) After evaporating 10g of water, the mass fraction of solute is? 2) After adding 10g NaCl, the mass fraction of solute is? At 20°C, the salt solution with 100g solute content of 5% is treated as follows, and the solution with increasing solute content in the solution is completely dissolved 1) After evaporating 10g of water, the mass fraction of solute is? 2) After adding 10g NaCl, the mass fraction of solute is?
5. The valence of chlorine element in ClO2 is:+4(valence)? Or +4?
6. The valence of chlorine element in ClO2 is several The valence of chlorine element in ClO2 is
7. What is the valence of manganese?
8. Which valences can manganese exhibit? Type out the representation,
9. What is the number of the outermost electrons in manganese? The valence of a chemical change What is the outermost electron number of manganese? The valence of a chemical change
10. After a bottle of 14% potassium hydroxide solution was heated and evaporated off 100 g of water,80 mL of 28% potassium hydroxide solution was obtained at a concentration of () A.5 mol/L B.6 mol/L C.6.25mol /L D.6.5mol/L
11. 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)
12. The solubility of sodium chloride is 36 g at 20°C, at which the mass fraction of solute in the sodium chloride solution is unlikely to be () A.20% B.26.5% C.25% D.30%
13. At 10°C, the solubility of potassium chloride is 31 g/100 g of water. The existing solution at 10°C is 393 g, in which 83 g of potassium chloride has been dissolved. How many grams of potassium chloride need to be added to form a saturated solution At 10°C, the solubility of potassium chloride is 31 g/100 g of water. The existing solution at 10°C is 393 g, in which 83 g of potassium chloride has been dissolved. How many g of potassium chloride need to be added to form a saturated solution
14. At 80°C, the solubility of potassium chloride was 51 grams. At this temperature, the potassium chloride solution was 240 grams. To form a saturated solution,51 grams of potassium chloride needed to be added. Senior, please help! At 80°C, the solubility of potassium chloride is 51 g. At this temperature, the potassium chloride solution is 240 g. To make a saturated solution,51 g of potassium chloride shall be added. How much g of potassium chloride is contained in the original solution? Senior, please help! At 80°C, the solubility of potassium chloride is 51 g. At this temperature, the potassium chloride solution is 240 g. To make a saturated solution,51 g of potassium chloride should be added. Senior, please help!
15. Solubility curve of potassium chloride can be found at 25°C 128? No, I thought it was 20,30 degrees,34,37
16. 100 G of saturated potassium chloride solution is heated and evaporated to dryness to obtain 25.4 g of potassium chloride solubility of potassium chloride
17. 53.6 G of a saturated solution of potassium chloride at 20.d egree. C. was evaporated to dryness to give 13.6 g of a crystal of potassium chloride for solubility Urgent! Urgent! 53.6 G of a saturated solution of potassium chloride at 20.d egree. C. was evaporated to dryness to give 13.6 g of a crystal of potassium chloride and to obtain its solubility Urgent! Urgent!
18. 8 G of NaOH reacts exactly with a certain amount of dilute hydrochloric acid to form a saturated solution of NaCl, the solubility of which is known to be 36 kg at this temperature, to obtain the mass of hydrochloric acid
19. Will the solubility of KCL change in NaCl solution? Would the solubility of KCL change in NaCl solution?
20. When ag water is evaporated from a salt solution at constant temperature, bg crystal without crystal water precipitates, and cg crystal without crystal water precipitates after ag water is evaporated, the mass fraction of solute in the original solution is () A.100(b+c) 2A+b+c% B.b+c 2A+b+c% C.100c A + c% D. Unable to determine When ag water is evaporated from a salt solution at constant temperature, bg crystal without crystal water precipitates, and cg crystal without crystal water precipitates after ag water is evaporated, the mass fraction of solute in the original solution is () A.100(b+c) 2A+b+c% B.b+c 2A+b+c% C.100c A + c% D. Not sure