anstde wor Explain pereent CsCI by mass in a 0711 M CsCI sol

anstde wor Explain pereent CsCI by mass in a 0.711 M CsCI solution that has a density of 1.091 11) g/mL? A)11.0% B)3.87 × 10-4 % C) 1.10% D) 3.87 × 10-1 % E)6.50 ×10-2 % 12) Which of the following phase changes is exothermic? 12) A) Condensation C) Vaporization B) Melting D) Sublimation 13) A 9.50 % by mass solution of acetone (C3H6O) in water has a density of 0.9849 g/mL 1 3) at 20°C. What is the molarity of this solution? A) 166 M B) 1.61 M C1.71M D)0.621 M E) 16.9 M 14) Which of following can form hydrogen bonds with water molecules? 14) (1) Na (2) CH COOH (3) C2Hs (4) CH3NH2 A) () and (2) B) (1) and (3) C) (2) and (4) D) (3) and (4) E) (2) and (3) 15) In how many grams of water should 25.31 g of potassium nitrate (KNO3) be dissolved D) 792.0g E) 1.263 g 16) Assuming 100% dissociation, which of the following compounds is listed incorrectly 15) to prepare a 0.1982 m solution? A)250.0gB)1000 g 07,917 16) with its van\'t Hoff factor ? A) Na,so, ,3 B) Mg(NO3)2. i = 3 C) Al2(SO4 )3-i = 4 D) Sucrose, i = 1

Solution

mass of CsCl per L=(mol of CsCl/L)*molar mass of CsCl=(0.711mol/L)(168.36g/mol)=119.704g/L

mass of CsCl solution=density*volume=(1.091g/ml)*1000ml=1091g

% CsCl in solution=(mass of CsCl/mass of solution)*100=(119.704/1091)*100=10.971=11.0%

Answer -11.0%