will a lawn mower engine run of methylated spirits? (which is practically 98 percent ethanol)?
Q. I need to build a go-kart for school, and I would like to know if a 2 stroke lawn mower engine will run off of ethanol? because its cheaper and probably more environmentally friendly. also, what are some other alternative fuels for a petrol engine?
Asked by Lukey - Wed Jan 28 01:42:11 2009 - - 6 Answers - 0 Comments

A. Yes and no... For starters you need to have huge jets in your carby - metho doesn't burn in the same air ratio as petrol. Otherwise it will run very weak and melt the piston. This means higher fuel consumption than with regular ULP. Ethanol also makes the engine harder to start and it will blow steam out of the exhaust, which will corrode it eventually. Also the metho will absorb moisture into the fuel lines and tank, so you'll have corrosion problems there too unless you drain the fuel system after use. The ethanol may also dissolve parts of your engine (rubber seals) If it was that simple we'd all be running metho in our engines dude. Stick with ULP.
Answered by Bertsta - Wed Jan 28 02:46:57 2009

What is the percent ethanol of Red Horse Extra Strong??
Q. We just performed yesterday the Fractional Distillation of Red Horse Extra Strong and it yielded a 10% ethanol.. But it was not printed in the bottle.. I just want to know if we came up with the correct percent ethanol.. Thank you!!
Asked by Genro - Thu Nov 30 01:51:37 2006 - - 2 Answers - 0 Comments

A. well, does the bottle say how many proof it is, if it does, then divide that number by 2 to get he percent amount
Answered by bobbr241 - Thu Nov 30 01:57:05 2006

What percent by volume is this drivers breath ethanol?
Q. When a suspected drunk driver blows 190 mL of his breath through the fuel-cell breathalyzer, the breathalyzer produces an average of 330 mA of current for 10 s. Assuming a pressure of 1.0atm and a temperature of 25 C, what percent (by volume) of the driver's breath is ethanol?
Asked by danipoak - Fri Apr 17 14:10:34 2009 - - 2 Answers - 0 Comments

A. .11
Answered by KathrynMK - Sun Apr 19 21:42:42 2009

If we start using ethanol for 100 percent of our gas, does that mean no more corn tortillas?
Q. Bummer. What about corn dogs? Or corny jokes? Isn't anyone alarmed? Save the tortilla!
Asked by (:P) - Mon Jul 7 20:14:52 2008 - - 2 Answers - 0 Comments

A. Well, farmers are still being paid not to plant maybe we need to have more farmers farming, and you could still get a taco and corn dog every now and than, i don't know what i would do with out corn bread.
Answered by alittlewiser - Mon Jul 7 23:06:21 2008

How much of an Effect will the fact that Indy Cars burn 100% Ethanol, have on the Ethanol Industry?
Q. The IndyCar Series groundbreaking use 100 percent fuel-grade ethanol in its Honda Indy V-8 engines. If 650-horsepower IndyCar Series cars that cover the length of a football field in 1 second can run safely and effectively on 100 percent fuel-grade ethanol, so can your vehicle (either 90 percent gasoline/10 percent ethanol blend or an E85 vehicle) with reduced emissions as an add-on benefit. Indy Cars get up to speeds of over 200 mph. The questions are: Will this lead to the other types of Race Cars making the switch? Will this promote and show to the world that Ethanol is a viable source for fuel?
Asked by greatlakesmedved - Sun Aug 12 12:03:14 2007 - - 3 Answers - 0 Comments

A. I think I will show ethanol as a viable fuel. Most advancements in the auto industry showed up in racing first. So the fact that they can reliably and powerfully run on ethanol shows that we can use it at home, and it is a home grown fuel making us more independant - we need to follow Brazils example (they have a very high percentage of ethanol base vechicles)
Answered by startrektosnewenterpriselovethem - Sun Aug 12 12:41:21 2007

Any way to get back the 20+ percent of gas mileage I LOSE on ETHANOL?
Q. It's just terrible and I drive a late model van.
Asked by TryToHaveFun - Thu Jul 10 01:28:21 2008 - - 2 Answers - 0 Comments

A. sure, just quit using it and go back to regular gas and you will save money in the long run.
Answered by mister ss - Thu Jul 10 21:38:53 2008

If whiskey is 40 percent ethanol by volume,....?
Q. What is the other 60 percent? Flavored water? From the distillation process and the aging in the oak barrel?
Asked by Digital Age - Mon Dec 1 20:48:17 2008 - - 2 Answers - 0 Comments

A. A whiskey made from single malt grain is 80% proof ethanol alcohol but after it was stored in oak barrels for 10 years 1/4 of its alcohol contents had evaporated. So it only retains 20% alcohol. Soon it will be mixed by flavored water, fruits, honey and syrups.
Answered by luzville - Tue Dec 2 01:39:44 2008

5. Calculate the molarity and percent by mass of a solution of ethanol, and water in which the mol fraction of
Q. of ethanol is 0.0820. The density of the solution is 0.978g/mL.
Asked by Farzana A - Wed Feb 27 23:32:09 2008 - - 1 Answers - 0 Comments

A. moles ethanol = 0.0820 => 62 g/mol x 0.0820 mol = 5.08 g moles water = 1 - 0.0820 = 0.918=> 18 g/mol x 0.918 = 16.5 g total mass = 21.58 g % by mass = 5.08 x 100 / 21.58 = 23.5
Answered by Dr.A - Thu Feb 28 14:52:32 2008

Is it true that some gas stations use higher percent of ethanol in their gas which makes lower mpg isthis true
Q. Is it true that some gas stations use higher percent of ethanol in their gas which makes lower mpg isthis true
Asked by steve - Thu Jan 10 15:38:35 2008 - - 3 Answers - 0 Comments

A. Fuel retailers will add ethanol to their fuels, but it is to meet Clean Air Act standards set forth by the EPA. Ethanol is an oxygenate, which means it releases oxygen during burning. This oxygen helps your car burn cleaner and reduce emissions. The EPA requires oxygenate in all fuels and for a while, MTBE was used, but eliminated around April 2006. Ethanol is the only remaining available oxygenate. The oil companies aren't trying to screw you over, since it's more expensive to add the ethanol than it is to sell you straight gasoline, but the environmental regulations require an oxygenate. While you do actually lose some mpg, let's calculate. If you got 20 mpg on MTBE gasoline in your car and you switch to a 10% ethanol mix, you'd… [cont.]
Answered by Oiler - Thu Jan 10 16:47:44 2008

what is the mole fraction of C2H4OH in an aqueous solutin that is 46 percent ethanol by mass??
Q. what is the mole fraction of C2H4OH in an aqueous solutin that is 46 percent ethanol by mass??
Asked by MeMe123 - Sun May 13 17:29:36 2007 - - 1 Answers - 0 Comments

A. a chicken wing.
Answered by Ricardo G - Sun May 13 17:37:40 2007

Mass percent and molality of ethanol?
Q. A bottle of wine contains 12.5% ethanol by volume. The density of ethanol (C2H5OH) is 0.789 g/cm3. Calculate the concentration of ethanol in wine in terms of mass percent and molality. Thanks in advance:)
Asked by Qwerty - Fri Dec 5 00:07:44 2008 - - 1 Answers - 0 Comments

A. 12.5 % ethanol by volume means in 1 L 12.5 % volume is ethanol. Volume of ethanol = 12.5%/100% x 1L Density = Mass/Volume So Mass = Density x Volume Sub in what you know Mass of ethanol in sample = Density of Ethanol x Volume of Ethanol (in 1L sample) Conc = Mass / Volume/1L) Conc = Mass of Ethanol in sample/ volume of sample (1L in this case)
Answered by Mr Hex Vision - Fri Dec 5 00:16:46 2008

Calculate the concentration of ethanol in wine terms of mass percent and molality.?
Q. A bottle of wine contains 14.3% ethanol by volume. The density of ethanol (C2H5OH) is 0.789 g/cm3. Calculate the concentration of ethanol in wine terms of mass percent and molality. mass percent molality
Asked by westafrica88 - Wed Mar 7 14:27:52 2007 - - 1 Answers - 0 Comments

A. This can't be solved, because you didn't give any information about the other stuff in the wine besides the ethanol.
Answered by katana girl - Sat Mar 10 14:21:59 2007

calculate the percent by mass composition of ethanol, C2H6O?
Q. calculate the percent by mass composition of ethanol, C2H6O?
Asked by Tammy - Wed Aug 29 17:56:54 2007 - - 1 Answers - 0 Comments

A. I assume you are looking to find the %C, %H, and %O in C2H5OH. The MW of ethanol is 46.07 amu 2 Carbon atoms 2x12.011 amu = 24.022; 24.022/46.07=52.14% carbon 6 Hydrogen atom = 6 x 1.008 amu = 6.048; 6.048/46.07= 13.13% hydrogen 1 Oxygen atom = 16.00 amu; 16.00/46.07=34.73% oxygen
Answered by skipper - Wed Aug 29 18:40:14 2007

10. What is the mass percent for the following solution: 10 ml of ethanol in 53 grams of water?
Q. water is 1,2 g/ml ; density of ethanol is 0,789 g/ml)
Asked by A Heros Welcome - Thu May 24 20:56:43 2007 - - 2 Answers - 0 Comments

A. mass ethanol = 10 mL x 0.789 = 7.89 g volume water = mass / d = 53 / 1.2 = 44.2 mL % by weight = mass ethanol / mass solution x 100 = = 7.89 /( 7.89 + 53) x 100 = 12.9 % % by volume = Vethanol / V solution x 100 = = 10 / (10 +44.2 )x100 = 18.4
Answered by Non piu attiva su answers - Fri May 25 00:09:08 2007

The term "proof" is defined as twice the percent by volume of pure ethanol in solution. Thus, a solution...?
Q. that is 95% (by volume) ethanol is 190 proof. What is the molarity of ethanol in a 92 proof ethanol/water solution? density of ethanol = 0.80 g/cm^3 density of water = 1.0 g/cm^3 mol. wt. of ethanol = 46 [A] 0.80 M [B] 0.92 M [C] 0.46 M [D] 17 M [E] 8.0 M
Asked by jkidd33192 - Tue Jan 20 14:08:18 2009 - - 1 Answers - 0 Comments

A. 46 mL C2H5OH per 100 mL solution 46 mL x 0.80 g/mL = 36.8 g 36.8 g / 46 g/mol = 0.80 mol C2H5OH per 100 mL 8.0 mole / liter (E) 8.0 M
Answered by skipper - Tue Jan 20 14:15:08 2009

A 5% solution of ethanol is diluted from 50ml to 75ml. What is the new weight /Volume percent?
Q. A 5% solution of ethanol is diluted from 50ml to 75ml. What is the new weight /Volume percent?
Asked by Chrissy - Tue Mar 25 20:23:42 2008 - - 1 Answers - 0 Comments

A. I'm going to assume it is volume% since only volumes are given. A 5% solution means that there is 5%*50ml=2.5ml of ethanol in the original solution. After dilution that means that the concentration of ethanol is 2.5ml/75ml*100%=3.3%
Answered by Sander O - Fri Mar 28 20:21:58 2008

condensing point and composition of mixture of water and ethanol?
Q. you have a 50/50 mole percent gas solution of ethanol and water. you stick in a cold pipe, what temperature does the pipe have to be to create the 1st drops of liquid and what is the composition of those 1st drops? this is at room pressure
Asked by Brad C - Tue Nov 3 21:56:05 2009 - - 1 Answers - 0 Comments

what is the molarity of 12 percent v/v red wine? Ethanol= CH3CH2OH... density of CH3CH2OH = .089g/mL.. so far?
Q. I have done a little of this proble but im not sure if its right (12 liters of wine/100 liters of wine) x (100 mL/1 L) (.89 grams/ 1mL)(1 moles/ 46 grams)... is this set up right or did I do something wrong?? thanks I cant really afford a tutor
Asked by cele - Fri Jul 25 19:12:10 2008 - - 1 Answers - 0 Comments

A. Let wine be called W. Let ethanol be called E. Also, I think that the density of ethanol is 0.89g/mL = 890g/L Atomic weights: C=12 H=1 O=16 C2H6O=46 12LE/100LW x 890gE/1LE x 1molE/46gE = 2.32 mole ethanol per L solution (molarity to three significant figures)
Answered by steve_geo1 - Fri Jul 25 20:14:34 2008

Calculate the molarity, molality and percent by mass?
Q. Calculate the molality, molarity and percent by mass of a solution of ethanol, C2H5OH, and water in which the mol fraction of ethanol is 0.0820. The density of the solution is 0.978g/mL.
Asked by frohlich9 - Sat Feb 7 13:57:31 2009 - - 1 Answers - 0 Comments

A. frohlich9, First, let's get all the information out that we will need. 0.0820 mole fraction means you have 0.082 moles of ethanol per (1-0.082) = 0.918 moles of water. In this mixture, in which we have one mole total of ethanol and water, we have: Moles ethanol = 0.0820 moles Grams ethanol = 0.0820 moles * 46.07 g/mole = 3.778 grams Moles water = 0.918 moles Grams water = 0.918 moles * 18.015 g/mole = 16.537 grams Total grams of mixture = 3.778 + 16.537 = 20.315 grams Volume of mixture = 20.315 g/(0.978 g/mL) = 20.772 mL = 0.02077 L Molality = moles solute/1 kg solvent = 0.0820 moles/(0.016537 kg water) = 4.96 m Molarity = moles solute/L = 0.0820 moles/(0.02077L) = 3.95 M Percent ethanol = (3.778g/20.315 g) * 100% = 18.6% Hope that… [cont.]
Answered by Dr. Buzz - Sat Feb 7 14:17:56 2009

What do you know about Brazil's move to oil energy independence?
Q. In Brazil, the fifth largest country in the world, there's a plan to become free from imported oil by the end of 2006. Brazil started its ethanol program because of the oil crisis in the '70s. Developing ethanol has led a brand new kind of car called a "flex vehicle," which gives you the option of using a gasoline ethanol blend or 100 percent ethanol. Today, 70 percent of new cars sold in Brazil are flex vehicles, which cost no more than a regular car. sources trish Regan, CBS News,Inc. William Bernquist, Sugar Cane Technology Institute, Brazil
Asked by Mary - Fri Apr 28 08:28:08 2006 - - 3 Answers - 1 Comments

A. Brazil is virtually oil free now and is on its way to becoming energy independent from ethanol. However, keep in mind that the population of Brazil is very isolated in 'pockets'. That's one of the big advantages they have over us...very few areas of heavy population. So easy to have ethanol where you need it. They also have vast acreage for growing corn. We do not. We could not grow enough corn to produce enough ethanol. Estimated 20% max. So we would still have to import. But yes, it would be cheaper than oil. The energy issue is a biggie for the US and we need to address it NOW.
Answered by Obi-Wan Kenobi - Fri Apr 28 08:31:41 2006