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Question

vellum.ecollege.com/course.html?course ldi: 1 44631 3 2 &OpenVellum; H MAC-1 ?428be958b8b482e81 eff84b2049386#10001 stry: Chapter 9 VitemView assignmentProblemiD-95303522 Secure https://session.masteringchemistry.c Chapter 9 Solubility 15 of 37 Part A The following table gives the solubility of solute X in water at two different temperatures You have prepared a saturated solution of X at 20 C using 43.0 g of water How much m olved if the temperature is increased to 30 G? Express your answer with the appropriate units Temperature Solubili e (/100 g H,O) 20 30 View Available Hint(s) 11.0 23.0 Valu ts Submit X incorrect; Try Again: 3 attempts remaining Provide Feedback to search

Explanation / Answer

mass of water = 43.0 g

lets calculate the mass of solute at 20 oC

solubility = 11.0 g/100 gH2O

So,

mass of solute = solubility * mass of water

= 11.0 g/100 gH2O * 43.0 g H2O

= 4.73 g

lets calculate the mass of solute at 30 oC

solubility = 23.0 g/100 gH2O

So,

mass of solute = solubility * mass of water

= 23.0 g/100 gH2O * 43.0 g H2O

= 9.89 g

So,

extra solute required = 9.89 g - 4.73 g

= 5.16 g

Answer: 5.16 g

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