What conditions are required for ethanol to react with ethanoic acid?
Q. For the reaction between ethanol and ethanoic acid: 1. What catalyst is used? 2. What are the reaction conditions? Thanks!
Asked by Raymond W - Thu Nov 13 18:16:02 2008 - Chemistry - 1 Answers - Comments

A. oli.g is awsome
Answered by - Thu Nov 13 19:26:55 2008

How many ppm and % is 39000 mg/L of ethanol in a 200m L bottle of water?
Q. I have a 200m L bottle of water that has been contaminated with ethanol. The concentration of ethanol is 39000 mg/L. What is the percentage of the bottle that is ethanol and how many parts per million of ethanol are in the bottle?
Asked by jas114 - Thu Jan 10 15:57:18 2008 - Chemistry - 1 Answers - Comments

A. Percentage and parts per million are dimensionless quantities. Assuming a solution density of 1g/m L, the ethanol percentage is calculated as follows: 39000 mg/L * 1L/1000m L * 1g/1000mg * 1g/m L= 0.39g/g Multiply the above dimensionless result by 100% for the percentage (39%), or multiply the result by 10^6 ppm for the parts per million (39000 ppm).
Answered by luminolic73 - Thu Jan 10 16:39:17 2008

How to protect from Ethanol Phase Separation in Bertram Fiberglass Gas Tanks with E-10 Gasoline?
Q. Hi, I have a 1985 Bertram 30 with a 220 Gallon Fiberglass Tank. As we approach the end of the season in the Northeast, we now have to start planning for Winterization. A standard procedure for Winterization over the years was to fill up your tanks with Gasoline before winter storage to cut down on water/condensation. That was before this Ethanol fiasco! Now if we have phase separation in the E-10 Gas, the Ethanol can eat away at the fiberglass resin in the tanks and also leave deposits in the Heads of the engine. I have been treating the fuel with Startron for the past year. What should I do this Winter? Should I fill up the tank with Startron treated fuel or should I leave 1/2 or even less than of tank of Startron treated fuel?
Asked by Edward P - Mon Sep 17 08:35:55 2007 - Boats & Boating - 1 Answers - Comments

A. You have 2 choices really. You can fill it up and treat it or you should empty it entirely and run your engine out of gas also. If you leave it any other way you invite trouble. Ethanol will pull moisture out of the air and into the tank also giving you troubles. We have had ethanol for a few years in the northeast now so if you have not had trouble yet you should be fine leaving it full and treating it. Good luck.
Answered by mark t - Mon Sep 17 09:04:21 2007

What is the Molarity of ethanol in a "92 proof" solution of ethanol in water?
Q. In the United States, alcohol is rated according to "proof" which is usually defined as twice the percent by volume of pure ethanol in solution, measured at 60*F. What is the molarity of ethanol in a "92 proof" solution of ethanol in water. The density of ethanol (C2H5OH, molar mass=46g/mole) is 0.80g/cm^3 at 60*F; the density of water (H2O, molar mass= 18g/mole) is 1.0 gm/cm^3 at 60*F(15.5*C) Please Explain
Asked by da_prospect_2006 S - Thu Oct 11 23:13:05 2007 - Chemistry - 1 Answers - Comments

A. 92 proof is 46% by volume. So let's assume you have 1,000 m L of mix. So you have 460 ml of ethanol and 540 ml of water. calculate the mass of ethanol (460)(0.80) = grams of ethanol Convert to moles by dividing by 46 g /mol SInce it is 1 liter, this is also the molarity
Answered by reb1240 - Thu Oct 11 23:22:02 2007

How many grams of ethanol must be added to 90g water to make a solution containing equal numbers of?
Q. How many grams of ethanol (C2H5OH) must be added to 90g water to make a solution containing equal numbers of ethanol and water molecules? The answer is 2.3 x 10^2 but I'm not sure how to do it.
Asked by Yarly - Sun Jul 31 00:44:16 2011 - Chemistry - 1 Answers - Comments

A. Straight forward. 90 g of water is 90/18 = 5 moles, so you will need 5 moles of ethanol (mol wt 46), so 46*5 = 230 g of ethanol. Based on Avagadro principle, equal moles of both will have equal nos of molecules
Answered by blackbeauty14 - Sun Jul 31 05:47:40 2011

What percentage of ethanol is used in the fuel for the Sprint Cup?
Q. I see that near the gas tank cars have something to the effect that it used ethanol 'America's fuel'. I know that where I live the gas has up to 10% ethanol, and some cars can run on 85% ethanol.
Asked by Rick31 - Wed Sep 28 09:54:01 2011 - NASCAR - 3 Answers - Comments

A. The current Sunoco racing fuel used in NASCAR is an E15 blend, meaning that it is 15% ethanol.
Answered by mindcrime828 - Wed Sep 28 10:02:35 2011

What is chemical equation of 95% ethanol reacting with copper sulfate?
Q. How would I show in the equation that there is ethanol AND water in the solution. I need to make a balanced equation showing 95% ethanol reacting with anhydrous copper sulfate to yield ethanol and copper sulfate pentahydrate. But where would I get H20 in the reactant side?
Asked by goodnosh7 - Thu Nov 26 08:04:26 2009 - Chemistry - 1 Answers - Comments

How many gallons of ethanol can be produced from 1 acre of sugarcane?
Q. How many gallons of ethanol can be produced from 1 acre of sugarcane? How many gallons of ethanol can be produced from 1 acre of sugarcane (not including the fuel it takes to plant, harvest, and produce the ethanol)? How many gallons of ethanol can be produced from 1 acre of sugarcane (if you subtract the amount of ethanol it would take to plant, harvest, and produce the bio-fuel)? How much ethanol can be produced from one 5 pound bag of sugar?
Asked by . - Mon Nov 2 12:29:43 2009 - Conservation - 1 Answers - 1 Comments

A. Brazil's sugarcane produces 662 gallons of ethanol per acre from: This is a pretty good site, and I think you can find the rest of your answers there.
Answered by - Mon Nov 2 12:48:55 2009

Why is ethanol the most prevalent solvent used in manufacturing perfumes?
Q. Is it related to the chemistry of ethanol and how the perfume extracts are able to dissolve in ethanol? Sources/websites are appreciated. Thank you.
Asked by icake - Sat Dec 11 23:58:11 2010 - Chemistry - 1 Answers - Comments

A. need ethanol to test whether perfumes still work when the wearer is drunk
Answered by - Sun Dec 12 00:06:16 2010

Would a injection of ethanol be a good way to euthanize a small animal?
Q. I don't plan to do it but it is just a random thought. Would a lethal dose of ethanol be a efficient and painless way to euthanize a small animal. From what i know small dosages administered directly in the bloodstream causes almost instant drunkenness. Of course being drunk usually eliminates any pain and loss of consciousness will shortly follow if the blood alcohol concentration is high enough. Sounds painless, I was just Curious if that was actually the case.
Asked by The Dude - Sat Aug 1 07:52:56 2009 - Medicine - 2 Answers - Comments

A. you should try it yourself... cheaper than bourben
Answered by Pineapple Octopus - Sat Aug 1 07:56:52 2009

How does adding ethanol effect the octane rating of gasoline?
Q. Would it be helpful to put a gallon of ethanol in my tank each time I fill up? There is a station near me that is selling E-85 for around a buck less than 87 octane gasoline.
Asked by it is i - Fri Apr 18 18:41:48 2008 - Engineering - 5 Answers - Comments

A. You be the judge... Ethanol burns very hot and is not prone to preignition... common to high octane numbers... which is the ability to withstand higher compressions without knocking due to preignition. E85 has an octane rating of 105 (compared to 89-93 for normal US gasolines) and ethanol by itself is rated at 116... Most "octane boosters" are made of toluene or ethanol or xylene... Using a gasoline with too high an octane can cause stalling when cold and possible valve damage due to not seating to transfer heat. A gallon of ethanol per 12-20 gallons should be fine. Back in the 'old' days we used to have this stuff called gasohol that was 5 to 10 percent ethanol or methanol (Carter started it during the fuel crunch, funny how we… [cont.]
Answered by muddypuppyuk - Fri Apr 18 19:04:30 2008

Where can I find gasoline with the lowest ethanol content?
Q. I am looking for gasoline in the US that has the least amount of ethanol alowed. Are there any companies that sell gasoline without ethanol still? Of course, it would help if these companies were in NH. Why? Because I have a turbo charged engine, I like getter better fuel economy, and I like getting more HP. The fuel is for a car, not a boat. I know some marinas sell fuel with an average or maximum of 10% ethanol, whereas many or most service stations sell fuel with an average or at least 10%. However, I don't think I can fuel my car at a marina. :-)
Asked by Tom C - Sun Sep 3 01:34:29 2006 - Other - Cars & Transportation - 4 Answers - 1 Comments

A. Contary to a another post, you DO get lower mileage with an ethanol blend because of its lower "heat content". There are test kits of alcohol in fuel, here's one: About $4/test. You could do you own water extraction, like in the test kit. But you won't come out ahead economically, because you'll be throwing away the alcohol (it is denatured with methanol and it will have carcinogenci benzene too, so DON'T drink it). Check different retailers, they'll get their gasoline from two or three different refineries in your area. Go to the local refinery or bulk fuel terminal and be amused to see 5 to 8 differently branded fuel trucks pull up. All those companies who like to say their gasoline is somehow better all get it from the some… [cont.]
Answered by David in Kenai - Tue Sep 5 20:08:48 2006

How much ethanol can I put in a gas engine?
Q. What precentage of ethanol can I use in a standard auto engine? 2005 model Ram1500 that has not been modified.
Asked by angeltherapy2002 - Thu Jun 29 20:45:06 2006 - Maintenance & Repairs - 4 Answers - Comments

A. The physical limit is 15% for most vehicles. They haven't found one yet that it can damage at that level, but there isn't much research done either. 10% everyone knows will work.
Answered by chattterus - Fri Jun 30 18:36:55 2006

What gas companies do NOT have ethanol in their gas?
Q. I am planning on driving from Florida to Pennsylvania next month. i refuse to run the 90/10 gas/ethanol mixture in my truck. Here in Florida, Sunoco does not use the mixture. Can anyone tell me what other companys do not have the mixture?
Asked by Katslookup - a Fostering Fool! - Sun Jul 6 20:32:23 2008 - Commuting - 3 Answers - Comments

A. It doesn't matter. if you buy gas in a county where oxygenated fuel is required, and MTBE is outlawed, all stations will have E-10. Apparently, from what you're telling me, some stations are selling E-10 even in counties where it's not required. Must be too much trouble for the distributors or something. If it's any consolation, I been running E-10 in my vehicles for years with no adverse consequences. good idea though, not mixing e-10 & non-ethanol gas in your tank. might take awhile, but sounds like you'll be doing some state by state, county by county research before your trip. It's going to be mostly in counties with large population centers, where the air quality is a concern. guess you'll have to plan your fill-ups outside of big… [cont.]
Answered by jtexas - Sun Jul 6 20:41:18 2008

Ethanol???
Q. I need help for my government project. I need to write to a federal congressman about my opinion on whether ethanol should or should not be used. Supposedly my opinion will be effective. So I need help. How much does it cost to make 1 gallon of corn based ethanol? And which congressman should I write to? It has to be a federal congeress person, not state. It has to be a federal congress person, not state.
Asked by xlxomenxlx - Thu May 8 13:11:01 2008 - Homework Help - 4 Answers - Comments

A. slam it using the argument of the cost of high food prices. write your own congressman/woman
Answered by Jim B - Thu May 8 13:14:36 2008

What is it in ethanol (the elements that make up ethanol) that makes ethanol a depressant?
Q. Ethanol is classified for medical purposes as a central nervous system depressant. What is it in ethanol, its chemical structure or the elements found in ethanol, that reacts with the central nervous system that makes it a depressant?
Asked by Kicks007 - Sat Aug 25 07:03:30 2007 - Chemistry - 1 Answers - Comments

A. ethanol consists of ethane n alcohol.its common name is ethyl alcohol n it's an alcohol.
Answered by - Sat Aug 25 07:18:37 2007

What would be a good mixer to go with ethanol for an alcholic beverage?
Q. Ethanol is beer so i would probably use whiskey and make me a boilermaker. Now a 12 pack of 12oz. cans of is more expensive than a gallon of ethanol so thats how to put Anheiser Busch out of business. So all you minors can get your Beer at the Exxon and BP stations.
Asked by Eric W - Sat Jul 12 01:06:11 2008 - Beer, Wine & Spirits - 8 Answers - Comments

A. ALKi E i N da house x
Answered by tua: giaieiek gs iedzdz - Sat Jul 12 01:14:01 2008

What molecules are in an ethanol solution?
Q. Like in a Na Cl solution, it completely breaks up. You have Na ions in there. Chlorine ions. Hydroxides. Hydrogens. And water molecules. What about in ethanol? Is there just water and ethanol molecules in there? Why or why not?
Asked by Canucklehead - Tue Sep 6 21:43:47 2011 - Chemistry - 1 Answers - Comments

A. In solution ethanol does not dissociate like Na Cl ... itis covalently bonded unlike Na Cl which is ionic so in solution you have molecules of C2H5OH and water mostly water does dissociate to a very small extent ( 10 ^-7) so most of the water is H2O molecules so the answer to your question is ... H2O and C2H5OH molecules
Answered by - Tue Sep 6 21:58:52 2011

How do you do an ethanol extraction for plants?
Q. (Specifically we are using Annona muricata) What is the specific procedure and are there specific proportions of the amount of ethanol per gram of plant samples?
Asked by - Wed Feb 2 08:21:47 2011 - Botany - 1 Answers - Comments

A. About 350 g shade dried and powdered leaves of Annona muricata are exhaustively extracted with 95% ethanol, using Soxhlet apparatus. The residue is filtered and concentrated in vacuo to a syrupy consistency. The extract is stored in a desiccator. The amount of solvent should be about the double of plant material. Page 481 >
Answered by mejxu - Wed Feb 2 15:49:10 2011

Is using ethanol mix gasoline good for older cars?
Q. I think I read somewhere that using this mix in older cars is not a very good thing to do. Is this true. Also which gas stations are just straight gas alone without ethanol? I know chevron uses the 10% mix.
Asked by biglo b - Tue Jun 8 15:57:11 2010 - Other - Cars & Transportation - 1 Answers - Comments

A. No it's not. Some of the rubber parts used in older cars can dissolve in ethanol.
Answered by - Tue Jun 8 16:06:11 2010