User Account

All Pages

Calculate the enthalpy released by burning

Assignment Help Chemistry
Reference no: EM13717929

Problem- Ethanol has a heat of combustion of 1367 kJ/mol, a molar mass of 46.07 g/mol and a density of 0.7893 g/cm^3. Octane has a heat combustion of 5450 kJ/mol, a molar mass of 114.23 g/mol and a density of 0.7025 g/cm^3. (a) Calculate the enthalpy released by burning (i) 1.00 L of ethanol and (ii) 1.00 L of octane. (b) How much less efficient (in percent) is burning ethanol compared to octane on a per volume basis?

Any expert is able to provide answer for this problem in very short time

Reference no: EM13717929

Questions Cloud

Calculate the ph and the equilibrium concentrations : calculate the pH and the equilibrium concentrations of all species present (Ch3CO2H, CH3CO2-, NH3, NH4+, H2O+, and OH-). Values of equilibrium constants can be looked up.
Explore the structure of the federal government : Why is the maximize-profits theory not acceptable in today's business world? Describe the structure of the federal government.
Calculate the ph of the solution after the addition of hi : A 1.00 L buffer solution is .250 M in HF and .250 M in LiF. Calculate the pH of the solution after the addition of .15 moles of solid HI. Assume no volume change. Ka for HF at 25C is 3.5x10^-4
Define what is the probability of getting four red heads : If you flip an unbiased green coin and an unbiased red coin five times each, what is the probability of getting four red heads and two green tails?
Calculate the enthalpy released by burning : Calculate the enthalpy released by burning (i) 1.00 L of ethanol and (ii) 1.00 L of octane. (b) How much less efficient (in percent) is burning ethanol compared to octane on a per volume basis?
Define what concentration of ag + (aq) remains : A 125.0mL sample of a solution that is 2.9 * 10^-3M in AgNO 3 is mixed with a 230.0mL sample of a solution that is 0.11M in NaCN. After the solution reaches equilibrium, what concentration of Ag + (aq) remains?
What weight of glycine of naoh required to make buffer : What weight of glycine pKa1 = 2.4 pKa2 = 9.6 and what volume of 1M HCl are required to make a 100ml of 0.3M buffer pH 2.4? What weight of glycine and what volume of 1M NaOH are required to make 100ml of 0.3M buffer, pH 9.3?
Determine the number of offspring that would expect : If a total of 1250 offspring were obtained from your cross; determine the number of offspring that you would expect to obtain that represent a single crossover event between pr and vg if interference does not occur.
Calculate the ph of a solution of potassium oxide : Calculate the pH of a solution in which 1.3 g of potassium oxide is dissolved in enough water to make up 1.750 L of solution.

Reviews

Write a Review

Chemistry Questions & Answers

  Explain what is the empirical formula of the compound

A 2.007 g sample of a hydrocarbon is combusted to give 1.389 g of H2O and 6.785 g of CO2. What is the empirical formula of the compound

  What volume of the liquid should he use

An experiment requires 44.0 g of ethylene glycol, a liquid whose density is 1.114 g/mL. Rather than weigh the sample on a balance, a chemist chooses to dispense the liquid using a graduated cylinder. What volume of the liquid should he use?

  Explain why is concentrated sulfuric acid employed

Why is concentrated sulfuric acid employed in the nitration of methyl benzoate reaction. What is the electrophile that is produced by the reaction of sulfuric acid and nitric acid

  What is the wave length of a radio signal

Problem- What is the wave length of a radio signal from an AM radio station operationg at a frequency of 820 kHz

  What percentage of the water will be vapor

what percentage of the water will be vapor when the system reaches equilibrium? assume ideal behavior of water vapor and that the volume of liquid water is negligible. the vapor pressure of water 35 degree celcius is 187.5 mmHg.

  Explain tungsten trioxide has a rich yellow color

Tungsten trioxide (WO3) has a rich yellow color and is often used as a pigment in ceramics and paints. In order to test a ceramic vase for its WO3 content

  How much oxygen is required

If 3.1 mol of ethane (C2H6) undergo combustion according to the unbalanced equation C2H6 + O2 ->CO2 + H2O, how much oxygen is required?

  Explian gases effuses at approximately one-half that rate

at 25 C, a sample of NH3(molar mass= 17g/mol) effuses at a rate of .050 mole per min. under the same conditions, which of the fallowing gases effuses at approximately one-half that rate

  Calculate the ph of the initial weak acid solution

Question- There is a titration of 25.00 ml of 0.200 M weak acid (ka = 4.2 X 10 ^ -6) with 0.250 M NaOH solution. 1. Calculate the pH of the initial weak acid solution above

  Energy content of gasoline is about 46 mjkg or about 37

energy content of gasoline is about 46 mjkg or about 37 mjliter. a small car with engine of specified capacity e.g. say

  State the specific heat of water

heat is removed from 200.0 g of water with an initial temperature of 30.0°C? The specific heat of water is 4.184 J/gdeg.

  Explain what is the magnitude of k

A particular first order reaction has a rate constant of 1.35 times 10^2 s^-1 at 25 degrees C. What is the magnitude of k at 95.0 degrees C if Ea=55.5kj/mol

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd