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Answer to Question #251668 in General Chemistry for jhon
Question #251668
A solution is made by dissolving 1.25 grams of Na2SO4 in 65.0 grams of water. What is the mole fraction of solute?
Expert's answer
2NaOH+H2SO4→Na2SO4+2H2O
= 65/18 = 3.61moles
125/142 = 0.88M
Total moles = 4.91
H2O = 3.61/4.91
= 0.74
Na2SO4 = 0.88/4.91
= 0.179
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