Asked by lyan
Q4) Suppose you prepare 950 mL of a solution by dissolving 100 grams of NaCl in 900 mL of water. Assuming the density of pure water to be 1 g/mL, answer the following questions with regards to this solution:
a) What is the mass percent of water in this solution?
b) What is molarity of NaCl solution?
c) What is the mole fraction of NaCl in the solution?
a) What is the mass percent of water in this solution?
b) What is molarity of NaCl solution?
c) What is the mole fraction of NaCl in the solution?
Answers
Answered by
DrBob222
a. mass % H2O = (grams H2O/grams soln)*100 = (100g H2O/1000g)*100 = ?
b. M = moles NaCl/L soln = moles NaCl/0.950 = ?
moles NaCl = grams NaCl/molar mass
c. mols NaCl you have.
mols H2O = grams H2O/molar mass
total moles = ?
XNaCl = moles NaCl/total moles.
b. M = moles NaCl/L soln = moles NaCl/0.950 = ?
moles NaCl = grams NaCl/molar mass
c. mols NaCl you have.
mols H2O = grams H2O/molar mass
total moles = ?
XNaCl = moles NaCl/total moles.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.