Can you dissolve a base in dimethyl ether?
Q. I know you can with diethyl ether, but I'm not sure about dimethyl. Does it make a difference? Thanks!
Asked by Mr Black - Thu Oct 14 06:37:32 2010 - Chemistry - 1 Answers - Comments

A. According to the material safety data sheet below, alkali is not one of the incompatible materials. However, dimethyl ether is a gas at room temp so it would have to be pressurized. B.P. is -24.84 C.
Answered by trent0123 - Thu Oct 14 07:09:55 2010

Can dimethyl ether form H-bonding?
Q. CH3OCH3, its non-polar... it has london, but what else forces are there?
Asked by mike_online_now - Fri Jan 26 11:09:11 2007 - Chemistry - 3 Answers - Comments

A. dimethyl ether can NOT form H-bonding - only molecules where H is bonded directly to O, N or F can you have H-bonding as in intermolecular force - in the case of dimethyl ether, the O is bonded to each C and all of the H's are bonded to c h3C - O - CH3 the C-O bonds are polar bonds - if you arrange the two CH3 groups to form a right angle with one on the left of the oxygen and one below the oxygen and draw a diagonal line through the structure from top left to bottom right, you will get the oxygen on the right side of the line and everything else on the left side - this means that this molecule will form a dipole and there will be dipole-dipole forces present as well as London dispersion forces
Answered by chem geek - Fri Jan 26 11:55:05 2007

Describe why ethane and methane are likely or unlikely to form a solution. Also propane and dimethyl ether.?
Q. I'm having a bit of trouble with this one part of my homework. The first part of the question would be the title. Considering your answer to the question, does it matter which substance in each of the mixtures is the solute? Explain.
Asked by derpderp - Tue Feb 16 03:48:22 2010 - Chemistry - 1 Answers - Comments

A. Both components of each are gases. To form a solution, one must be a liquid!
Answered by - Tue Feb 16 10:24:15 2010

What is the lewis structure of DImethyl ether?
Q. 1) what is the lewis structure of dimethyl ether 2) What is the actual shape 3) polar or nonpolar? 4) what Secondary force present?
Asked by - Wed Dec 7 17:40:02 2011 - Chemistry - 1 Answers - Comments

Ethanol and dimethyl ether have the same molecular formula C2H6O, but the boiling point of ethanol?
Q. CH3CH2OH, 78 o C, is higher than the boiling point of dimethylether (CH3)2O, 25 o C, because ___ a) of hydrogen bonding b) of stronger dipole-dipole interactions c) of larger London dispersion forces d) it has a larger molar mass e) the bonds are more polar
Asked by chemical.garry - Sat Nov 3 18:02:44 2007 - Chemistry - 3 Answers - Comments

A. A. is correct. ethanol is protic a hydrogen bond donor and receiver so it can bond tighter to each other. You need more energy to break the bonds thus the higher boiling point temperature. dimethylether is aprotic only a hydrogen bond receiver.
Answered by jujri - Sat Nov 3 18:28:29 2007

how can i heal a burn from dimethyl ether?
Q. So I used a ''wart freeze off'' that contained dimethyl ether & propane for this mistaken wart beside my eyebrow. Now, i have a brownish looking burn from it & i don't know how to heal it. Anybody want help me for my mistake? =P
Asked by hayllehail - Tue Mar 30 16:35:11 2010 - Injuries - 2 Answers - Comments

Predict which of ethanol (CH3CH2OH) or dimethyl ether (CH3OCH3) has the greater viscosity.?
Q. Assume that they are both at the same temperature and in their liquid form. 1. Equal viscosities 2. dimethyl ether 3. ethanol
Asked by chels - Thu Oct 29 19:43:01 2009 - Chemistry - 1 Answers - Comments

A. Viscosity depends on intermolecular forces. Ethanol is an alcohol with H-bonding so will have larger intermolecular forces and greater viscosity than the ether that does not have H-bonding. Answer 3.
Answered by - Thu Oct 29 20:01:33 2009

Who discovered Dimethyl ether?
Q.
Asked by Tweety - Wed Aug 10 05:16:48 2011 - Chemistry - 2 Answers - Comments

A. The compound may have been created by either Jabir ibn Hayyan in the 8th century or Raymundus Lullus in 1275, although there is no contemporary evidence of this. It was first synthesized in 1540 by Valerius Cordus and , who called it "sweet oil of vitriol" (oleum dulce vitrioli) the name reflects the fact that it is obtained by distilling a mixture of ethanol and sulfuric acid (then known as oil of vitriol) and noted some of its medicinal properties. At about the same time, Theophrastus Bombastus von Hohenheim, better known as Paracelsus, discovered ether's analgesic properties in chickens. The name ether was given to the substance in 1730 by August Siegmund Frobenius.
Answered by - Wed Aug 10 05:23:07 2011

You have two different compounds ch3och3 ( dimethyl ether) and ch3ch2co2h ( propanoic acid) Which one of the?
Q.
Asked by - Thu Dec 1 15:04:57 2011 - Chemistry - 1 Answers - Comments

A. It seems you are missing some of the question... At a guess, I would say... 42. Is that right?
Answered by - Thu Dec 1 15:30:48 2011

Does Dimethyl ether have any lone electron pairs??
Q. Please help! Thanks!
Asked by mamimii - Tue Sep 11 19:18:01 2007 - Chemistry - 1 Answers - Comments

A. Dimethyl ether has the structure: CH3-O-CH3 The carbons and hydrogens don't have lone pairs, but the oxygen in between the two carbons does. It has two lone pairs.
Answered by random - Wed Sep 12 04:12:49 2007

Dimethyl ether (CH3-0-CH3) and ethanol (CH3CH2OH) are isomers (C2H6O)...?
Q. Dimethyl ether (CH3-0-CH3) and ethanol (CH3CH2OH) are isomers (C2H6O) but the boiling point of ethanol at 78.4 C is about 100 degrees higher than the ether. Explain
Asked by Kat B - Wed Jun 24 14:24:58 2009 - Chemistry - 2 Answers - Comments

A. Ether is a gas at room temperature whereas ethanol is a liquid. Actually ethanol is C2H3OH for all alcohols the formula is C(n)H(n+1)OH but anyways... ethanol has a double convalent bond between carbon atoms and therefore take more energy to break into a gas, dimethyl ether is simply in a chain.
Answered by 2xW - Wed Jun 24 14:32:23 2009

How to get liquid dimethyl ether !?!?
Q. my question is if it is possible to get pure dimethyl ether .Or dissolved in water or anything like that . I taught that maybe if I have a pressurized can with it and let it in the freezer until it achieves -24o C and then crack it open it would be possible to extract it . anyway ... anyone knows how can I get dimethyl ether ? thanks
Asked by ervas_ncr - Mon Mar 17 08:27:40 2008 - Chemistry - 1 Answers - Comments

A. Aldrich sells it in a cylinder. You would handle it like any low boiling liquid. Do a gas transfer into a cooled flask and condense it at LN2 or i PA/dry ice temp.
Answered by Chad - Mon Mar 17 23:19:29 2008

How can i heal a burn from dimethyl ether?
Q. So I used a ''wart freeze off'' that contained dimethyl ether & propane to get rid of this ''mistaken'' wart beside my eyebrow. Now, i have a brownish looking burn from it & i don't know how to heal it. Anybody want help me for my mistake? =P
Asked by hayllehail - Tue Mar 30 16:39:56 2010 - First Aid - 2 Answers - Comments

A. with all chemical urn you are supposed to run them under running water for 20 mins...the only other suggestion is to use bio-oil everyday to reduce its appearance
Answered by Keeks - Tue Mar 30 16:41:44 2010

Ethanol and dimethyl ether have the same molecular formula C2H6O, but the boiling point of ethanol CH3CH2OH?
Q. Ethanol and dimethyl ether have the same molecular formula C2H6O, but the boiling point of ethanol CH3CH2OH, 78 o C, is higher than the boiling point of dimethylether (CH3)2O, 25 o C, because ___ a) of hydrogen bonding b) of stronger dipole-dipole interactions c) of larger London dispersion forces d) it has a larger molar mass e) the bonds are more polar Enter the letter of the correct response, without the parenthesis
Asked by McMed911 - Sun Nov 4 12:41:19 2007 - Chemistry - 2 Answers - Comments

A. a, since it exists only in CH3CH2OH, and not CH3OCH3.
Answered by km - Sun Nov 4 12:58:58 2007

Is dimethyl ether miscible in water? How does this compare to the miscibility of acetone in water?
Q. I've looked everywhere and I keep getting that CH3OCH3 is not miscible in water because of water's hydrogen bonding. If this is so, how can acetone, CH3COCH3, be miscible in water. They seem pretty similar to me.
Asked by Brittany S - Mon Jan 25 23:14:27 2010 - Chemistry - 1 Answers - Comments

A. the ether is symmetrical around the sandwiched O atom and is nonpolar--nonpolar will not dissolve in water. but the acetone has a = O to one side being a ketone and this gives it polarity which helps its solubility in water.
Answered by - Mon Jan 25 23:17:48 2010

Why is dimethyl ether considered tetrahedral in shape?
Q.
Asked by - Sat Jan 22 23:42:55 2011 - Chemistry - 2 Answers - Comments

A. It is not tetrahedral in shape. What has a tetrahedral geometry is the 2 C atoms and the O atom. Understanding the geometry of the C atoms is easy. There are 4 atoms bonded in an sp3 geometry. The O has 2 atoms bonded and 2 lone pairs of electrons. Lone pairs are quite bulbous and occupy nearly as much space as an atom. Again the O is sp3 hybridized, and has tetrahedtal geometry. The molecule resembles water with the Hysrogens replaced by bulkier groups.
Answered by sailor astra - Sun Jan 23 00:30:27 2011

given thermodynamic values, which is more chemically stable, ethanol or dimethyl ether?
Q. ethanol enthalpy = -153.984650 Hartree free energy = -154.014986 Hartree entropy = 63.846 cal/mol-K dimethyl ether enthalpy = -153.973453 Hartree free energy = -154.003228 Hartree entropy = 62.668 cal/mol-K
Asked by coolguy - Tue Nov 17 17:29:42 2009 - Chemistry - 1 Answers - Comments

A. Since entropy tends to increase, the molecule with greater entropy will probably be more stable. Thus, I would say ethanol is more stable.
Answered by - Tue Nov 17 17:38:53 2009

The decomposition of dimethyl ether at 504deg C is a first-order reaction with a half-life of 27 min.?
Q. The decomposition of dimethyl ether at 504deg C is a first-order reaction with a half-life of 27 min. (CH3)2O(g) CH4(g) + H2(g) + CO(g) (a) What will be the partial pressure of (CH3)2O(g) after 2.06 h if its initial partial pressure was 541 mm Hg? (b) What will be the total gas pressure after 2.06 h? [Hint: (CH3)2O and its decomposition products are the only gases present in the reaction vessel.]
Asked by jska87 - Thu Feb 28 00:31:00 2008 - Chemistry - 1 Answers - Comments

A. (CH3)2O(g) ==> CH4(g) + H2(g) + CO(g) . . . . . . . . (1) Let [0] represents the initial concentration of (CH3)2O. That means [0] corresponds to the initial partial pressure 541 mm Hg. For first order decomposition, we have: Ln([(CH3)2O]/[0]) = -kt . . . . . . . . . (2) Since the half-life is 27 min, we calculate k as: k = Ln(2)/t = Ln(2)/(27 min) = 0.0257/min (a) Let t = 2.06h = 124min Put this into (2), we have: [(CH3)2O] = 541*exp(-0.0257*124) = 22.7 mm Hg (b) The result of (a) means a partial pressure of (541-22.7)mm Hg = 518mm Hg of (CH3)2O is decomposed to form three times as much of the gas products according to (1). Hence the total gas pressure after 2.06 h is: 541mm Hg + 2*518mm Hg = 1577mm Hg
Answered by Hahaha - Sat Mar 1 22:51:42 2008

Dimethyl Ether [ CH3CH2OCH2CH3 ] + Na OH with water as the solvent yields? Or is there no reaction?
Q.
Asked by Tom - Sat Nov 13 23:35:22 2010 - Chemistry - 1 Answers - Comments

A. whether it is dimethyl ether or diethyl ether, it does not react with aqueous sodium hydroxide even at elevated temperature.
Answered by - Sun Nov 14 04:29:00 2010

Why does dimethyl ether have a higher boiling point that propane?
Q.
Asked by - Thu Oct 6 21:44:43 2011 - Chemistry - 1 Answers - Comments

A. Although both compounds have the same molecular weight, C-H and C-C bonds are relatively nonpolar meaning no atoms with a charge. The C-O bonds in dimethyl ether are polar with the oxygen partially negative and the adjacent C atom partially positive. The oppositely charged areas among the molecules attract each other hence it takes more energy to pull them apart, a higher boiling point
Answered by - Thu Oct 6 21:55:37 2011