A 250ml bottle fof sports drink solution contaaints 4.50% by mass of sodium chloride. What is the molal conc. of sodium chloride in this bottle of sports drink ...... Nacl (58.44g/mol)
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A 250ml bottle fof sports drink solution contaaints 4.50% by mass of sodium chloride. What is...
A CS Exams Solutions and Aqueous Reactions, Part 2 L Molarması Molar mass gmo PQ-7. A 250 mL bottle ofa sports drink solution contains 4.50% by mass of sodium chloride. What is the molal concentration of sodium chloride in NaCI 844 this bottle of sports drink? (D) 0.0113 m (A) 0.806 m (C) 0.180 m (B) 0.770 m
4. What is the mass % of NaCl if 15 g sodium chloride are dissolved in 374 g H2O? (Hint: don't forget that solution mass = solute + solvent mass.) 5. What mass of acetic acid (HC2H302 = 60 g/mol) must be dissolved in 1340 g H2O to produce a 2.75 m solution? 6. What is the new volume of a solution if 437 mL of a .968 M solution are diluted to a .315 M solution? 7. One solution...
D 2. A salt solution is added to a marine aquarium. What mass of sodium chloride (NaCl, 58.44 g/mol) is needed to produce 250.0 mL of a solution that has a concentration of 50.0 mM ? 58.5 g 2.92 mg 731 g 2.92 g 731 mg
The following enthalpy change is known for the dissolution of sodium chloride in water. What is the energy needed or released for the dissolution of 58.44g of sodium chloride in water? NaCl (s) Na* (aq) + Cl- (aq) AH = +3.87 kJmol-1
An aqueous solution of sodium chloride, NaCl, contains 2.18 grams of sodium chloride and 17.3 grams of water. The percentage by mass of sodium chloride in the solution is_______ %.
A sports drink was prepared by adding equal moles of NaCl and Sucrose (non-ionic compound) to form 0.5 liters of solution. If the sports drink contains 225 mg of sodium what is the osmotic pressure of the solution at 25 degrees celsius?
A 100.0 mL aqueous sodium chloride solution is 13.9 % NaCl by mass and has a density of 1.12 g mL−1. What mass of solute would you add to make the boiling point of the solution 104.8 ∘C ? (Use i = 1.8 for NaCl)
5. A mass of 31.65 g of sodium chloride is added to 218.7 g of water at 34 °C. What will be the boiling point of the solution? Assume the sodium chloride completely dissociates in the water. Kh water=0.512 °C/molal. Slo ogni sebe
An aqueous solution containing sodium chloride has a freezing point that is -1.28 degrees C at 1.0 atm. What is the % by mass of NaCL in this solution? HINT: The Kf for water = 1.86 degrees C kg/mol
A 100.0-mL aqueous sodium chloride solution is 14.3% NaCl by mass and has a density of 1.12 g/mL. What mass of solute would you add to make the boiling point of the solution 104.4 ∘C? (Use i = 1.8 for NaCl) Express your answer to two significant figures and include the appropriate units.