What is the oxidation number of C in ethanol, C2H5OH?
-2
6
3
2
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A 2.11 g sample of ethanol (C2H5OH) is burned in a bomb calorimeter with a heat capacity, C-5.65 kJ/"C. C2H5OH() + 3 O2(g) + 2 CO2(g) + 3 H2O(g) AH'rxn=-1235 kJ If the initial temperature is 25.0°C, what is the final temperature (in "C) of the calorimeter? The molar mass of ethanol is 46.07 g/mol. Remember, in the heat equation, q=m's'AT, heat capacity is equivalent to Cum's, giving Heat capacity is extensive whereas specific heat is intensive. -CAT.
Ethanol (C2H5OH) is used as an additive in many fuels today. What is AHørxn (kJ) for the combustion of 2 moles of liquid ethanol? C2H5OH (1) + 3 O2() + 2 CO2(g) + 3 H20 (1) Formula Hºf (kJ/mol) @ 298K C2H5OH-277.6 CO2(g) -393.5 H2O () -241.8 H20 -285.8 A. -401.7 kJ B. +401.7 kJ C. -2469 kJ D. +2734 kJ E. -2734 kJ О Е ОА oc OB
Please show work in neat handwriting 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
6. What is the oxidation number of O in KO2? a)-2 b) -3 c) -1/2 d)-1/3 e) - 1
What is the molarity of a 12.1% (v/v) solution of ethanol (C2H5OH)? The density of ethanol is 0.785g/mL and the molar mass of ethanol is 46g/mol.
The thermochemical equation for the combustion of ethanol is: C2H5OH (l) + 3 O2 (g) -> 2 CO2 (g) + 3 H2O (g) ΔHrxn = -1360 kJ What is the enthalpy change when 3.50 kg of ethanol react with excess oxygen?
What is the molarity of a 97.0−mL ethanol solution containing 5.05 g of ethanol (C2H5OH)?
If the density of ethanol, C2H5OH, is 0.789 g/mL. How many milliliters of ethanol are needed to produce 15.0 g of CO2 according to the following chemical equation? C2H5OH(l) + 3 O2(g) → 2 CO2(g) + 3 H2O(l)
A sample of 2.22 moles of ethanol (C2H5OH) is initially at 25.0°C. If the sample absorbs 5.94 kJ of heat, what is the final temperature of the ethanol? The specific heat capacity of ethanol is 2.46 J/g°C. Select one: a. 48.6°C b. 1120°C c. 26.1°C d. 25.0°C e. None of the above
If 86.5 g of ethanol (C2H5OH) is added to 355 g of water what is the molarity of the ethanol solution