can you help me find the mole fraction of ^^^^ (:
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Before we solve this problem we need to recall the formula for mole fraction.
MOLE FRACTION = # of moles in a substance / total # of moles in the solution.
First lets find out how many moles are in 3.33g of NaOH.
3.33g NaOH x (1 mol NaOH / 40g NaOH) = .08325 mol NaOH
Now lets find out how many grams of H2O we have.
895mL H2o x (1g H2O / mL) = 895g of H2O ----> *remember density of H2O 1g/mL
Now lets find how many moles of H2O
895g H2O x (1 mol H2O / 18g H2O) = 49.72 mol H2O
MOLE FRACTION = .08325 / (.08325) + (49.72) =
THE FINAL ANSWER IS = .00167
MOLE FRACTION = # of moles in a substance / total # of moles in the solution.
First lets find out how many moles are in 3.33g of NaOH.
3.33g NaOH x (1 mol NaOH / 40g NaOH) = .08325 mol NaOH
Now lets find out how many grams of H2O we have.
895mL H2o x (1g H2O / mL) = 895g of H2O ----> *remember density of H2O 1g/mL
Now lets find how many moles of H2O
895g H2O x (1 mol H2O / 18g H2O) = 49.72 mol H2O
MOLE FRACTION = .08325 / (.08325) + (49.72) =
THE FINAL ANSWER IS = .00167