A 50/50 Blend A Solution Is Made By Dissolvi www.saplinglearning.com/ibis/x ty-C

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A 50/50 Blend A Solution Is Made By Dissolvi www.saplinglearning.com/ibis/x ty-CHEM 4A learning.com/ibiscms/mod/ibis/view.php?id-5141574 ng HW11 University-CHEM 4A-Spring18-ALBANESEActivities and Due Dates Gr e 3/25/2018 11:59 PM 17.8/31 Print Cakulator Periodic Table IncorrectIncorrect Inoorrect Question 17 of 31 Map Sapling Learning A solution is made by mixing 41.0 mL of ethanol, CaO, and 59.0 mL of water. Assuming ideal behavior, what is the vapor pressure of the solution at 20 "C? Values at 20 C Number Liquid ethanol 0.789 water 0.998 Vapor Pressure, P Tor) 43.9 17.5 Torr Previous Give Up & View Solution Check Answer NesxtEx about us careers privacy policy terms of use contact

Explanation / Answer

converting 41 ml ethanol into grams, 0.789 g/ml * 41.0 ml = 32.349 g ethanol
no of moles of ethanol = 32.349/48 = 0.674 moles
Pressure exerted by ethanol = 0.674 * 43.9 Torr = 29.58 Torr

Converting 59 ml water in to grams , 0.998 * 59 = 58.882 g water
no of moles of water = 58.882/18 = 3.271 moles
Pressure exerted by water = 3.271 * 17.5 = 57.24 Torr

Vapor pressure of rhe solution = 29.58 Torr + 57.24 Torr = 86.82 Torr

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