Search: Which substance is an electrolyte? C2H5OH C6H12O6 C12H22O11 CH3COOH

Number of results: 2,659

chemistry
Which substance is an electrolyte? C2H5OH C6H12O6 C12H22O11 CH3COOH
Tuesday, May 18, 2010 at 7:13pm by b

chem
Okay, looking at the reaction that you provided, 1 mole of C6H12O6=2 moles of C2H5OH You placed one mole of C6H12O6 in the vat. Your reaction tells you that you will get 2 moles of C2H5OH for every 1 mole of C6H12O6. C6H12O6 ----> 2C2H5OH+2CO2 We know that 1 mole of a ...
Thursday, March 14, 2013 at 3:40pm by Devron

chem
1 mole of C6H12O6=2 moles of C2H5OH moles of C2H5OH*(46.06867g of C2H5OH/mole)=g of C2H5OH (g of C2H5OH/35.1 g of C2H5OH)*100= percent yield of C2H5OH Answer should have three significant figures.
Thursday, March 14, 2013 at 3:40pm by Devron

chem
Consider the fermentation reaction of glucose: C6H12O6 ----) 2C2H5OH+2CO2 A 1.00-mol sample of C6H12O6 was placed in a vat with excess yeast. If 35.1 g of C2H5OH was obtained, what was the percent yield of C2H5OH?
Thursday, March 14, 2013 at 3:40pm by shane

chemistry
The fermentation of sugar (C6H12O6) to form ethanol (C2H5OH) and carbon dioxide (CO2) occurs according to the following equation: C6H12O6(aq) ¡ú 2 C2H5OH(aq) + 2 CO2(g) kJ mol¨C1 ¦¤Hf (C6H12O6(s)) is ¨C1275 ¦¤Hf (C2H5OH(l)) is &...
Wednesday, November 3, 2010 at 6:12am by mailyn

Chemisty
THINK IT"S Molar mass C2H5OH = 46 g / mol 7.50 g / 46 = 0.163 moles the ratio between C6H12O6 and C2H5OH is 1 : 2 1 : 2 = x : 0.163 x = 0.0815 moles of C6H12O6 needed molar mass C6H12O6 = 180 g/mol 180 x 0.0815 = 14.7 g
Saturday, March 3, 2012 at 3:15pm by MIKE

chem
. Give two reasons why graphite (carbon) electrodes are used in electrolysis. 5. You have 2 compounds called X and Y. X melts at 1200 degrees C and is soluble in water. Y melts at 156 degrees C and is insoluble in water. Draw 2 diagrams to show how you could prove which of ...
Monday, November 2, 2009 at 6:45pm by Nabiha

chemistry
4. Give two reasons why graphite (carbon) electrodes are used in electrolysis. 5. You have 2 compounds called X and Y. X melts at 1200 degrees C and is soluble in water. Y melts at 156 degrees C and is insoluble in water. Draw 2 diagrams to show how you could prove which of ...
Monday, November 2, 2009 at 6:28pm by Nabiha

chemistry
if C6H12O6 -> 2 C2H5OH + 2 CO2 represents the fermentation of sugar to produce alcohol, and the reaction is only 40.0% efficient (% yield), what is the actual yield of alcohol from 454 g of C6H12O6
Tuesday, November 30, 2010 at 4:11pm by lianne

Chemistry
Which substance is a conductor of electricity ? (1)NaCl(s) (2)NaCl (l) (3)C6H12O6(s) (4) C6H12O6 (l) thanks for any help !
Thursday, December 2, 2010 at 5:18pm by Anonymous

Chemistry
moles Cr2O7^-2 = M x L = ?? Convert mole Cr2O7^-2 to moles C2H5OH using the coefficients in the balanced equation. That will be moles Cr2O7^-2 x (1 mole C2H5OH/2 moles Cr2O7^-2) = ??moles x (1/2) = xx moles C2H5OH. g C2H5OH = moles C2H5OH x molar mass C2H5OH. %C2H5OH = (g ...
Thursday, March 31, 2011 at 8:33pm by DrBob222

Chemisty
How many grams of c6h12o6 are needed to form 7.50g of c2h5oh
Saturday, March 3, 2012 at 3:15pm by Winnie

Chem
Can you please tell me if these are right? Classify the solutes in the following equations as a weak electrolyte, a strong electrolyte of a non electrolyte in water. a. XY2(s)=X2+(aq) +2Y-(aq) b. HX(g) ß=H+(aq) + X-(aq) c. XYZ(s)=XYZ(aq) d. YOH(s)=Y+(aq) + OH-(aq) a. ...
Sunday, November 14, 2010 at 7:01pm by Jason

chem
Opps, typo. Last part should say (35.1 g of C2H5OH/g of C2H5OH)*100= percent yield of C2H5OH Answer should have three significant figures ***** Note: g of C2H5OH=46.1g
Thursday, March 14, 2013 at 3:40pm by Devron

chemistry
Which of the following would have the lowest vapor pressure? A. 0.8 m C6H12O6 B. 0.10 m C6H12O6 C. 0.05 m C6H12O6 D. 0.15 m C6H12O6 I think it is D... is that correct? Which of the following would have the lowest boiling point? A. 0.8 m C6H12O6 B. 0.10 m C6H12O6 C. 0.05 m ...
Thursday, November 12, 2009 at 4:02pm by Christina

chemistry
for (b) this is my work1250 g of H2O * 1 mol / 18 g = 69.44 mol of H2O # of moles of C2H5OH = 69.44 mol of H2O * 1 mol of C2H5OH / 3 mol of H2O = 23.15 mol of C2H5OH * 46 g / 1 mol = 1065 g of C2H5OH 1065 g of C2H5OH * 1 cm3 / 0.789 g = 1350 cm3 of C2H5OH = 1350 mL of C2H5OH...
Friday, October 10, 2008 at 11:19pm by starlight

chem
C6H12O6(aq)->2 C2H5OH(aq) + 2CO2(g) Fermentation of 744mL grape juice(density=1.0 g/cm^3) is allowed to take place in a bottle witha V of 825mL until 12% by volume is ethanol (C2H5OH). Assuming CO2 is insoluble in H2O what would the pressure be of the CO2 inside the ...
Friday, November 16, 2007 at 1:27pm by mel

Chemistry
Which of the following compounds is a strong electrolyte? a. C6H12O6 b. C7H14O5 c. C4H8O2 d. NaC2H3O2 e. All of these --- I think it is D but I'm not sure. Also, how do you know if it is a strong or weak acid?
Wednesday, April 20, 2011 at 12:15pm by Kathryn

Chemistry
C2H5OH + 3O2 ==> 2CO2 + 3H2O 2.5 moles C2H5OH x (3 moles O2/1 mole C2H5OH) = 2.5 x (3/1) = ?
Tuesday, October 25, 2011 at 11:59pm by DrBob222

Chemistry
The hydrolysis of sucrose (C12H22O11) produces fructose and glucose (each C6H12O6). Two mechanisms are proposed: I) Step 1: C12H22O11 --> C6H12O6 + C6H10O5 (slow) Step 2: C6H10O5 + H2O--> C6H12O6 (fast) II) C12H22O11 + H2O--> C6H12O6 + C6H12O6 Would these ...
Thursday, April 1, 2010 at 5:18pm by Val

chemistry
which isn't a pure substance? 1.Cl2(g) 2.Fe(s) 3.O2(aq) 4.C6H12O6(b) 5.H2O(l)
Monday, January 4, 2010 at 3:38pm by susan

science
C3H8 is propane. That is a non-electrolyte. All the others are electrolytes; i.e., H2SO4 -sulfuric acid HCl --The solution is an electrolyte. The dry compound minus water is a non-electrolyte HNO3--nitric acid. NaCl (solution) is an electrolyte in the molten state or in ...
Friday, October 5, 2007 at 7:34pm by DrBob222

chemistry
A is mixed. The first H ionizes at 100% so it is a strong electrolyte. The second one, however, has a k with it (about 0.012) so it is a weak electrolyte. CuS is not soluble in water. I don't know how you classify it but since it doesn't dissolve it has no ions and I ...
Wednesday, October 5, 2011 at 6:03pm by DrBob222

chemistry
Calculate the volume ( mL ) of the solute C2H5OH and the mass ( g ) of the solvent diethyl ether that should be mixed to produce 3.46 kg of a solution that is 1.31 m C2H5OH. volume ( mL ) of the C2H5OH mass ( g ) of the (C2H5)2O Molar Mass (g/mol) C2H5OH 46.07 (C2H5)2O 74.12 ...
Thursday, June 3, 2010 at 10:48pm by Judy

chemistry
Calculate the molarity of a solution containing 40.0 g glucose (C6H12O6) in enough ethanol (C2H5OH) to make 40.0 mL of solution.
Wednesday, February 10, 2010 at 12:04am by CC

Chemistry
Calculate the volume (L) of the solute C4H8O and the volume (mL) of the solvent C2H5OH that should be combined to prepare 5.54 kg of a solution that is 0.608 m. Molar Mass (g/mol) C4H8O 72.12 C2H5OH 46.07 Density (kg/L): C4H8O 0.8892 C2H5OH 0.7893 Name/Formula: tetrahydrofuran...
Sunday, February 14, 2010 at 9:29pm by Jackie

chemistry
Which of the following is true of a substance with a pH of 11.0? A. The substance is an acid. B. The substance is a base. C. The substance is neutral. D. The substance is a transition metal. I think A
Saturday, November 10, 2012 at 3:28pm by Keri

Chemistry
The unbalanced equation for the combustion of ethanol is as follows: C2H5OH(l) + O2(g) ¨ CO2(g) + H2O(g) How much heat, in kJ, is liberated when 4.84 kg of C2H5OH(l) is burned? Species Delta H‹f (kJ/mol) H2O(g) -241.8 CO2(g) -393.5 C2H5OH(l) -277.7 Express...
Wednesday, October 13, 2010 at 7:46pm by Jordin

chem- plz check my work
2. Given the following equation, C2H5OH(l) + 3 O2(g)---> 2 CO2(g) + 3 H2O(l) How many liter of CO2 are expected in the combustion of 12.0 grams of ethanol? My work: 12.0g C2H5OH X 1 mol C2H5OH/46.08g C2H5OH X 2 mol CO2/1 molC2H5OH X 22.4L CO2/1 mol CO2 = 11.7 L CO2 all ...
Wednesday, December 8, 2010 at 6:09pm by hannah

Chemistry: Stoichiometry
first we write the combustion reaction: C6H12O6 + O2 -> H2O + CO2 then we balance it: C6H12O6 + 6O2 -> 6H2O + 6CO2 since mass of glucose is given, we get its molecular weight,, from the periodic table mass of each element in glucose is H = 1 , C = 12 , O = 16 6*...
Thursday, April 14, 2011 at 9:14pm by Jai

chemistry
last check: (c) A wine cooler contains 4.5% ethanol by mass. Assuming that only the alcohol burns in oxygen, how many grams of wine cooler need to be burned to produce 3.12 L of CO2 (d = 1.80 g/L at 25°C, 1 atm pressure) at the conditions given the density? 1 C2H5OH + 3 O2...
Sunday, October 12, 2008 at 12:08pm by starlight

Chemistry
Suppose 1.0 mol of substance A reacts with 1.0 mol of substance B. to produce 2.0 mol of substance C. In a reaction, 2.4 mol of substance A is allowed to react with 2.1 mol of substance B. What amount in moles of substance c is produced?
Wednesday, April 1, 2009 at 10:22pm by Andrew

chemistry
Substance A and substance B react to form substance C as described by the equation: A + B ↔ C If only substance A and substance B are placed in an enclosed vessel and allowed to react what would the reaction be?
Monday, June 13, 2011 at 3:18pm by guilford technical college

Chemistry: Stoichiometry
*i'll just repost my answer~ :) first we write the combustion reaction: C6H12O6 + O2 -> H2O + CO2 then we balance it: C6H12O6 + 6O2 -> 6H2O + 6CO2 since mass of glucose is given, we get its molecular weight,, from the periodic table mass of each element in ...
Thursday, April 14, 2011 at 9:14pm by Jai

Chemistry
In the "Methode Champenoise," grape juice is fermented in a wine bottle to produce sparkling wine. The reaction is given below. C6H12O6(aq) 2 C2H5OH(aq) + 2 CO2(g) Fermentation of 712 mL grape juice (density = 1.0 g/cm3) is allowed to take place in a bottle with a ...
Tuesday, November 13, 2012 at 7:56pm by Zachary

Chemistry
I just to know how to identify the substance that is reduced, the substance that is oxidized, the oxidizing agent and the reducing agent in each reaction. As (s) + ClO3-(aq) → H3AsO3 (aq) + HClO(aq) CN-(aq) + MnO4-(aq) → CNO-(aq) + MnO2(s) C2H5OH + MnO4- &...
Tuesday, April 30, 2013 at 11:01pm by m

chemistry
Calculate the molar mass of a non-electrolyte that lowers the freezing point of 25.0 g of water to - 3.9 oC when 4.27 g of the substance is dissolved in the water.
Monday, October 1, 2012 at 7:02am by Danica

chemistry
What is the difference between a strong electrolyte and a weak electrolyte? Explain what makes an electrolytic solution strong or weak. Do you look at the pH to determine between a strong electrolyte and a weak one?
Monday, May 3, 2010 at 10:59pm by Anonymous

science
compare table salt with glucose table salt is a strong electrolyte that will completely dissolve in a solution. whereas, glucose is a weak electrolyte and won't dissolve in a solution. ex. NaCl in water makes Na+ and Cl- ions glucose in water is basically just glucose...I ...
Monday, January 22, 2007 at 9:51pm by 1234

chemisrty
When a substance changes from one phase to another, which of the following occurs? the substance loses or gains heat the average kenetic energy of the substance changes the temperature of a substance changes the molecular motion of a substance changes
Friday, November 16, 2012 at 11:14am by Tasia

chemistry
Your teacher is talking about the conversion factor to convert moles C6H12O6 to moles C. That is how you isolate C from the whole molecule. There are 6.02 x 10^23 molecules (particles) of C6H12O6 in a mole of anything (in this case a mole of C6H12O6). So how many molecules are...
Friday, July 10, 2009 at 12:43pm by DrBob222

Science
You can google ionic bonds, electrolytes, covalent bonds, and get general information but I don't know where you can find all of this "put together" so you can answer the questions. Here are the answers. sucrose: covalent bonds (some are polar covalent), solution...
Sunday, December 20, 2009 at 10:38pm by DrBob222

Chemistry
I cannot find information that gives me a clear answer whether NaBr is an electrolyte or non electrolyte. I have found some information that K2SO4 is an electrolyte, but now I am doubting that. All of my others I have been able to find solid information on, but these two have ...
Thursday, January 31, 2008 at 5:51pm by Larry

chemistry
An unknown substance has a mass of 17.3 . When the substance absorbs 1.557×102 of heat, the temperature of the substance is raised from 25.0 to 45.0 . What is the most likely identity of the substance?
Monday, September 20, 2010 at 10:47pm by Kyle

chemistry
What does it mean to say that the ions of an electrolyte behave independently of one another when the electrolyte is dissolved in water? is it something about the compound splitting?
Tuesday, January 13, 2009 at 6:40pm by lyne

chem
How many moles of glucose (C6H12O6) are in 1.6 liters of a 0.75 M C6H12O6 solution?
Tuesday, January 17, 2012 at 5:10pm by bryan

Chemistry
Neat pure ethanol C2H5OH has an enthalpy of vaporization of 39.3 Kj/mol, and a vapor pressure of 0.308 atm at 50 C. What is the boiling point, at atmospheric pressure of 1 atm, of a solution consisting of 35 G of phenol (a non-electrolyte hydrocarbon with a molecular formula ...
Monday, April 30, 2012 at 11:09am by Mima

Chem Electron Config
start by defining the reaction: C2H5OH + 3O2 = 2CO2 + 3H2O Now you know that each mole of C2H5OH produces 3 moles of H2O. convert grams C2H5OH to moles, multiply by 3, and convert moles H2O to grams.
Thursday, October 18, 2012 at 3:59pm by Steve

chem
H2SO4 is a tricky question and one that I would not know how to answer if I had to input to a computer. The first H is a strong electrolyte, the second one is weak (k1 ionizes 100%; k2 = about 10^-2). FeCl2 ionizes 100% HClO is a weak electrolyte AgCl is a strong electrolyte ...
Sunday, May 8, 2011 at 8:58pm by DrBob222

chemistry
How do you balance this equation? C6H12O6 + O2 --> H2O + CO2 Thanks! C6H12O6+6O2=6H2O+6CO2 (that should be right!) C6H12O6 + 6O2 --> 6H2O + 6CO2 Thank you! Thank you too!
Saturday, February 24, 2007 at 10:35pm by Lydia

Chemistry
C2H50Na + H2O ==> Na^+ + C2H5O^- The ethanoate ion hydrolyzes as follows: C2H5O^- + HOH --> C2H5OH + OH^- Khydrolysis = Kb = Kw/Ka = (C2H5OH)(OH^-)/(C2H5O^-). (C2H5OH) = y (OH^-) = y (C2H5O^-) = 0.1 - y solve for y and convert to pOH and from there to pH. Check ...
Friday, September 26, 2008 at 6:57am by DrBob222

science
Have you tried to balance the equation? That would be a good place to start. You will need twice as many CO2's as C2H5OH's. That should be obvious. You will need 1/3 as many H2O's as C2H5OH's. So start with C2H5OH +xO2 -> 2CO2 + 3 H2O Now all you need to...
Sunday, February 6, 2011 at 4:43pm by drwls

chemistry
given C12H22O11+H2O----C6H12O6+C6H12O6 heat combustion0f 2826.7kj/mol what is the standard enthalpy
Tuesday, April 19, 2011 at 8:35pm by yr

chemistry
given C12H22O11+H2O----C6H12O6+C6H12O6 heat combustion0f 5646.7kj/mol what is the standard enthalpy
Tuesday, April 19, 2011 at 8:22pm by yr

chemistry
Let's try something different. You get 1368 kJ for a mol of C2H5OH. How many moles C2H5OH do you have in 12.5 g C2H5OH? Then 1368 kJ/mol x mol = ?? kJ.
Wednesday, May 19, 2010 at 11:11pm by DrBob222

Chemistry
Why will a reaction that forms a very weak electrolyte not form an equilibrium reaction? Your preface is questionable. Do you have an example of one? All the weak electrolytes I can think of form in solution an equilibrium reaction. No the question did not give an example with...
Thursday, April 12, 2007 at 8:34pm by Chrissy

Chemistry
You have presumably calculated conductivities so that it is the conductivity of a volume of electrolyte containing 1 mole of dissolved substance? As each of the compounds have different RMM then the conductivities will reflect this.
Friday, October 2, 2009 at 7:33am by Dr Russ

Chemistry
How many moles of glucose , C6H12O6, can be "burned" biologically when 10.0 mol of oxygen is available. C6H12O6(s) + 602(g)---6CO2(g) + 6H2O(l)
Sunday, December 9, 2012 at 8:05am by Chan

chemistry
given C12H22O11+H2O----C6H12O6+C6H12O6 heat combustion 0f 2815.8 kj/mol what is the standard enthalpy
Tuesday, April 19, 2011 at 8:36pm by yr

Chemistry
Would it be correct to say that it is harder for a weak electrolyte to dissociate in a solution than it is for a stronger electrolyte to dissociate? If a weak electrolyte can't dissociate completely it wouldn't be able to form an equilibrium reaction right? yes Second ...
Friday, April 13, 2007 at 2:09pm by Chrissy

Chemistry
What preperation produces a 2.0 Mole solution of C6H12O6? a) 90.0 grams of C6H12O6 dissolved in 500.0 mL of solution b) 180.0 grams of C6H12O6 dissolved in 1000mL of solution c) 90 Grams of C6H12O6 dissolved in 1000mL of solution D) 180.0 Grams of C6H12O6 dissolved in 500.0mL ...
Wednesday, December 19, 2012 at 11:23pm by D

Chemistry
The balanced equation shows that 1 mol C2H5OH provides 1235 kJ of energy. 1 mol C2H5OH = how many grams? I think that is about 46 but you should confirm that. So 46 g C2H5OH provides 1235 kJ. You want 293 kJ. It's a simple proportion.
Thursday, November 1, 2007 at 11:50am by DrBob222

Chemistry
You need to identify these. A may be glucose; if so it is not a strong electrolyte. I have no idea what b and c are. d probably is sodium acetate and it is a strong electrolyte. e can't be correct if a is not and d is..
Wednesday, April 20, 2011 at 12:15pm by DrBob222

chemistry
If you want answers you should become more adept at making your questions clear. Is that 5g C2H5OH? Where's the arrow? There are (5/molar mass C2H5OH) mols in ethanol?
Wednesday, April 17, 2013 at 1:28pm by DrBob222

Chemistry
What's an empirical definition? An electrolyte is one which separates into ions. An electrode may be a metal or a non-metal which is partially immersed in an electrolyte.
Wednesday, November 11, 2009 at 6:31pm by DrBob222

chemistry
2. Imagine you have two beakers. Both beakers are filled with the same amount of water. The water in both beakers is the same temperature as well. You add 50 g of Substance A to the first beaker, and 50 g of Substance B to the second beaker. After stirring both beakers, there ...
Thursday, October 22, 2009 at 12:59pm by fatima

chemistry
First balance C's, then H's, then O's using coefficients so you have equal numbers of each element on the sides of the equation. So first you would match up the C's C2H5OH + O2 -> 2CO2 + H2O then do the H's (six on left so need 6 on right) C2H5OH + ...
Wednesday, May 2, 2012 at 9:05pm by Anonymous

scince thanks
A chemical reaction is a change in which a substance reacts with a different substance usually to create a different substance or compound. A chemical change is a change in the chemical makeup of a substance usually ending with a different sunstance but the beginning substance...
Saturday, October 6, 2007 at 9:02pm by Michele

Chemistry
The alcohol in gasohol burns according to the reaction C2H5OH(l) + 3O2(g) --> 2CO2(g) + 3H2O how many grams of water are produced when 3.0 moles of C2H5OH are burned in an excess of oxygen gas?
Monday, October 15, 2012 at 4:16am by Lana

chemistry
In the "Methode Champenoise," grape juice is fermented in a wine bottle to produce sparkling wine. The reaction is given below. C6H12O6(aq)--> 2 C2H5OH(aq) + 2 CO2(g) Fermentation of 746 mL grape juice (density = 1.0 g/cm3) is allowed to take place in a bottle...
Tuesday, December 11, 2012 at 11:11pm by Alex

Chemistry
In the "Methode Champenoise," grape juice is fermented in a wine bottle to produce sparkling wine. The reaction is given below. C6H12O6(aq)--> 2 C2H5OH(aq) + 2 CO2(g) Fermentation of 746 mL grape juice (density = 1.0 g/cm3) is allowed to take place in a bottle...
Tuesday, December 11, 2012 at 9:27am by Alex

chem
How many moles of C6H12O6 are formed when 0.250 mole of CO2 is consumed in the reaction 6 CO2 + 6 H2O C6H12O6 + 6 O2?
Wednesday, June 20, 2012 at 1:54pm by joe

Chem help
What's CH3OHO? a typo perhaps? HF yes C2H5OH but to a much smaller extent. Both HF and C2H5OH have hydrogen bonds but they are dipoles also.
Friday, November 2, 2012 at 9:32pm by DrBob222

English
Select the answer that contains the correct punctuation for the following sentence. A diamond is the hardest natural substance it can scratch any other stone. A. The sentence is correct. B. ... substance, it can... C. ... substance; it can... D. ... substance; and, it can... I...
Wednesday, April 6, 2011 at 5:51pm by anthony

chemistry
C2H5OH + 3O2 --> 2CO2 + 3H2O How many grams of O2 are consumed when 5.86 ml of Ethanol burns completely (the density of C2H5OH is 0.789 g/ml)?
Thursday, February 16, 2012 at 8:19pm by Delta

Chemistry
A 11.7 m solution of the solute C2H5OH dissolved in the solvent chloroform is available. Calculate the mass ( kg ) of the solution that must be taken to obtain 2552 g of C2H5OH.
Monday, May 4, 2009 at 2:01am by Tylor

science
There are three element in C6H12O6. They are C (for carbon), H(for hydrogen), and O(for oxygen). I used the formula and the symbols to know what is in the formula. There are (6+12+6) = 24 total atoms in C6H12O6.
Thursday, February 21, 2013 at 1:28pm by DrBob222

Chemistry
Do the following parameters indicate how stable a substance is? 1) Viscosity of a substance 2) Optical rotation of a substance
Sunday, April 15, 2012 at 12:52am by jean

Chemistry 110
Write the formulas of the principal molecular or ionic species present in an aqueous solution of each substance. (a) Sodium Chloride, NaCl (b) Hydrogen bromide, HBr (c) Iron (III) sulfate, Fe2(SO4)3 (d) Ethanol, CH3CH2OH (e) Glucose, C6H12O6 (f) Ammonium acetate, NH4CH3COO
Tuesday, November 9, 2010 at 2:14pm by kim k

chemestry
C2H5OH + 3O2 ==> 2CO2 + 3H2O mols C2H5OH = grams/molar mass Convert mols C2H5OH to mols O2 using the coefficients in the balanced equation. Now convert mols O2 to grams. g = mols x molar mass.
Thursday, February 28, 2013 at 11:22pm by DrBob222

chemistry
If you have 12 moles of a substance, how many molecules do you have of that substance? Suppose the substance has a molecular weight of 342. How many grams of that substance would you have to dissolve in a liter of water to make a 12 M solution?
Saturday, September 3, 2011 at 6:44pm by VANESSA

Chemistry
1. Write the formulas of the principal molecular or ionic species present in an aqueous solution of each substance. (a) Sodium Chloride, NaCl Na+ + Cl- (b) Hydrogen bromide, HBr (c) Iron (III) sulfate, Fe2(SO4)3 (d) Ethanol, CH3CH2OH (e) Glucose, C6H12O6 (f) Ammonium acetate, ...
Tuesday, November 9, 2010 at 1:46pm by Sara

Chemistry
A watch is to be electroplated with gold. - provide a solution that would make a suitable electrolyte for this cell. I'm not quite sure how to figure out what the electrolyte solution is made of. Any help you can give me would be wonderful!
Monday, September 10, 2012 at 11:23am by Hannah

probability and statistics
welsh, davis, burke, and williams (2002) conducted a study to evaluate the effectiveness of a carbohydrate-electrolyte drink on sports performance and endurance. experienced athletes were given either s carbohydrate-electrolyte drink or a placebo while they were tested on a ...
Friday, January 6, 2012 at 3:23pm by kiera

Chemistry
For the equation: deltaHrxn = qrxn / mol substance to calculate deltaH per mole what does the mol substance mean? Does this mean that you use the mm of the substance or if you already calculated the # of moles of a substance do you use that?
Monday, February 13, 2012 at 8:00pm by Hannah

Chemistry(Please help, thank you)
For the equation: deltaHrxn = qrxn / mol substance to calculate deltaH per mole what does the mol substance mean? Does this mean that you use the mm of the substance or if you already calculated the # of moles of a substance do you use that?
Monday, February 13, 2012 at 9:31pm by Hannah

General Chemistry
Im having trouble balancing this redox rection in acidic solution. I dont know how to balance reactions in which one reactant splits up into two products. C2H5OH(aq) + I3-(aq) --> I-(aq) + CO2(g) + CHO2-(aq) + H+(aq) I know I split it into C2H5OH --> CO2 + CHO2...
Wednesday, June 3, 2009 at 5:24pm by Julie

Chemistry
Assume that a reaction occurs in which unknown substances R and S react to form unknown substances T and U. From the information below, determine the mass of substance T that will be formed if 45.0 grams of substance R reacts with 23.0 grams of substance S. (Assume that the ...
Tuesday, May 20, 2008 at 8:07pm by Daniel

Philosophy
The Continental Rationalists not only articulated elaborate views on substance but also utilized substance as the foundation of their metaphysics. Nevertheless, their views on substance, though similar in some respects, differ in important ways. How do their views on substance...
Monday, February 4, 2008 at 11:28pm by Joe

chemistry
Problem#8: Metabolism of alcohol (ethanol, C2H5OH) by the body takes place according to the reaction: C2H5OH(l) + 3O2(g) → 2CO2(g) + 3H2O(l) ΔHo = -1367 kJ Determine the number of “food calories” (Cal) supplied by the alcohol in a 12-oz (355-mL) ...
Thursday, October 21, 2010 at 1:28pm by Sarah

Chemistry
A watch is to be electroplated with gold. - provide a solution that would make a suitable electrolyte for this cell. This is the only question I'm having a little trouble with. I'm not quite sure how to figure out what the electrolyte solution is made of. Any help you ...
Sunday, September 9, 2012 at 9:48pm by Hannah

Biophysical Chemistry
The combustion of 1 mole of C2H5OH (Ethanol) in a bomb calorimeter produces 1364 kJ/mol at 25 degree Calcium. What is the value of enthalpy chamge for the following combustion reaction? C2H5OH(l) + 3O2(g) => 2CO2(g) + 3H2O(l)
Tuesday, December 21, 2010 at 8:33pm by Laura

Chemistry
Ethanol, C2H5OH is mixed with gasoline and sold as gasohol. Use the following to calculate the grams of ehanol needed to provide 293 kJ of heat. C2H5OH + 3O2 ----> 2CO2 + 3H2O Delta H = -1235 kJ How do I do this question
Thursday, November 1, 2007 at 11:50am by Lauren

chemistry
what is the equation for C6H12O6+NaOH+Cu(OH)2 C6H12O6+AgNO3+NH4OH AgNO3+NH4OH+ galactose when heated
Saturday, October 16, 2010 at 12:39pm by flans

hernandez
find the molar enthalpy of vaporization for a substance, given that 3.21 mol of the substance absolve 28.4 kj of energy as heat when the substance changes from liquid to gas? show the work
Thursday, May 30, 2013 at 9:38pm by ady

chemistry 110
A non-electrolytes conducts no electricity. A strong electrolyte conducts electricity very well. A weak electrolyte conducts electricity between the other two.
Wednesday, October 19, 2011 at 11:30pm by DrBob222

Chemistry
Ethanol, C2H5OH, is mixed with gasoline and sold as gasohol. Use the following to calculate the grams of ethanol needed to provide 367 kJ of heat. C2H5OH(l) + 3 O2(g) ¨ 2 CO2(g) + 3 H2O(g) ƒ¢H = −1235 kJ
Monday, November 21, 2011 at 5:29pm by Samantha

Inferential Statictics
Welsh, Davis, Burke, and Williams (2002) conducted a study to evaluate the effectiveness of a carbohydrate-electrolyte drink on sports performance and endurance. Experienced athletes were given either a carbohydrate-electrolyte drink or a placebo while they were tested on a ...
Monday, February 27, 2012 at 11:43pm by Summer

Chemistry
An unknown substance has a mass of 16.3 g. The temperature of the substance increases by 20.1 degrees Celsius when 126 J of heat is added to the substance. What is the most likely identity of the substance? The table lists the specific heat capacities of select substances. ...
Tuesday, October 9, 2012 at 11:18pm by Anonymous

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