Determine the mole fraction of ethanol, C2H5OH (Molar mass = 46.08 g/mol) when 12 grams of...
1.Determine the molarity of a solution that contains 8.4 moles of ethanol dissolved in 4.7 liters of solution. Answer to 2 decimal places. 2.Determine the mole fraction of ethanol, C2H5OH (Molar mass = 46.08 g/mol) when 13.4 grams of ethanol is dissolved in 96.1 grams of water, H2O (Molar mass = 18.02 g/mol).
Determine the molarity of a solution containing 17.2 grams of ethanol, C2H5OH (Molar mass = 46.08 g/mol) dissolved in 3.1 liters of solution. Answer to 2 decimal places.
2.21 g of ethanol C2H5OH and 3.55 of oxygen O2 are reacted. Molar mass of C2H5Oh 46.08 g/mol. O2 32.00 g/mol. Co2 44.01 g/mol. H20 18.02 g/mol a)What is the limiting reactant? b) what is the theoretical yield of carbon dioxide in grams will be obtained in the combustion reaction. starting with the amount of reagents given in part (a). assuming the reaction goes in 100% yield. c) If 0.951 f of CO2 is obtained from the reaction above, what...
Calculate the heat released when 135 grams of ethanol C2H5OH, burns. The heat of combustion of ethanol is 1233 kJ/mol. Molar mass of ethanol C2H5OH = 46.07 g/mol C2H5OH(g) + 3 O2(g) → 2 CO2 (g) + 3 H2O(l) LaTeX: \DeltaΔH = -1233 kJ/mol
a solution of C2H6O ethanol molar mass is 46.07 g / mol in water can be used to disinfect. A liter of this solution contains 533g of ethanol and 355. of water 18.02 g / mol. What is the lolar fraction of ethanol in this solution.
What is the mole fraction sucrose when 295 g sucrose C 12H 22O 11 (molar mass 342.3 g/mol) is dissolved in 405 g water?
When 12.6-grams of an unknown compound is placed in 0.116-kg of benzene, the freezing point is changed by 2.34°C. The value of Kf= 4.90°C/m for benzene. Determine the molar mass of the unknown compound. Answer to 1 decimal place and include your units. Answer: Determine the molality of a solution when 32.3 grams of ethanol, C2H5OH (Molar mass = 46.08 g/mol) is dissolved in 0.947 kg of water. Answer to 2 decimal places. Answer: Find the freezing point of a...
Question 1 5 pts A solution is prepared by dissolving 35.35 g ethanol (C2H5OH; Molar mass = 46.08 g/mol) in 42.2 g water. What is the molality (mol/kg) of C2H5OH in the solution? 4361 m 4.36 m 0.767 m 18.2 m 0.0182 m Question 2 5 pts Which observation correctly reflects colligative property? A KOH solution has a high vapor pressure than pure water Adding NaCl to ice will increase its melting point. A 0.5 m NaOH solution boils at...
9 ro what is the mole fraction of ethanol, CH CHOI, in a liquor that is 15.0% ethanol by mass? More Practices Calculate the molality of a solution that contains 25 g of H SO, dissolved in 40. g of H2O. What mass of water must be used to dissolve 20.0 grams of ethanol, C:HsOH, to prepare a 0.0500 molal solution of ethanol?
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2) 2) If the density of ethanol, C2H5OH, is 0.789 g/mL. How many milliliters of ethanol are needed to produce 30.0 g of CO2 according to the following chemical equation? (10 pts) C2H5OH= 46.08 g/mol, O2 = 32.00 g/mol, CO2 = 44.01 g/mol, H20= 18.02 g/mol) C2H5OH(1) + 3 O2() - 2 CO2(g) + 3 H2O(1) C -11.01