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April 1, 2015

Search: C6H12O6+CO2=2C2H5OH+2CO2, how many moles of CO2 are produce when .490 mol of C6H12O6 react with this equation

Number of results: 38,706

chemistry
The density of CO2 (g) at 25°C and 715 torr is:
May 7, 2013 by Anonymous

Chemistry
What's the correct empirical formula for CO2?
August 17, 2013 by Vanessa

HARD chemistry
A solution of ferrous sulfate (FeSO4) is titrated with a solution of potassium permanganate in sulfuric acid. The balanced half reactions are as follows: 10FeSO4 + 5 H2SO4 --> 5 Fe2(SO4)3 + 10 H ^+ +10e^- and 2 KMnO4 + # H2SO4 +10e^- --> 2 MnO4 + K2SO4 + 8 H2O. The gram-...
January 4, 2010 by Amy

chemistry
to produce 4.00 mole if c6h12 from the following how many grams of c6h6 must you combine 78.12 g/mol c6h6 + 2.02 g/mol h2 = 84.18 g/mol c6h12
February 7, 2012 by Amber

chemistry
In the reaction of N2 and H2 to produce NH3, how many moles of H2 will produce 37.9 grams NH3 if sufficient N2 is present? Do not enter units with your answer.
October 21, 2011 by Charles

CHEM LAB
What is the Molar Enthalpy of Neutralization in kJ/mol if 5.00 moles of HCl(aq) (acid) neutralized 5.00 moles of NaOH(aq) (base) and released 6649J of heat?
November 5, 2013 by BRANDIE

chemistry
What is the Molar Enthalpy of Neutralization (ÄHn) in kJ/mol if 5.00 moles of HCl(aq) (acid) neutralized 5.00 moles of NaOH(aq) (base) and released 2033 J of heat?
November 17, 2013 by brittany sheats

science
What is the Molar Enthalpy of Neutralization (ÄHn) in kJ/mol if 5.00 moles of HCl(aq) (acid) neutralized 5.00 moles of NaOH(aq) (base) and released 2033 J of heat?
November 17, 2013 by brittany sheats

chem(REALLY NEED HELP )
calculate the total mass of carbon dioxide gas produced when you burn 1000ml of gasoline Density of heptane = 0.684g/ml density of octane =0.703g/ml a) Calculate the mass of carbon dioxide produced from combustion of heptane C7H16 + O2 ------- CO2 + H2O b)CALCULATE THE MASS OF...
December 2, 2014 by christie

chemistry
Ammonia, NH3, can be made by reacting nitrogen with hydrogen. N2 + 3H2 = 2NH3 How many moles of NH3 can be made if 7.5 moles of H2 react with enough N2? Please help!
March 19, 2012 by Britt

chemistry 106
Nitroglycerin, an explosive compound, decomposes according to the equation below. 4 C3H5(NO3)3(s) 12 CO2(g) + 10 H2O(g) + 6 N2(g) + O2(g) Calculate the total volume of gases when collected at 1.2 atm and 25°C from 1.3 multiplied by 102 g of nitroglycerin. What are the partial ...
February 28, 2010 by Tanisha

Intro to chem
What is the volume of 19.7g of oxygen at STP? Heres what i got but did not get the same answer..pls tell me where i am wrong! (grams to moles) 19.7g x 1 mol/ 16.00 = 1.23 mol Oxygen (Pv=nRT) looking for V 1.23 mol x 0.0821 x 273K / 1.00 atm = 27.57 CORRECT ANSWER is 13.8L!
April 14, 2011 by pooja

chemistry
Consider the following reaction. 4Fe + 3O2=2Fe2O3 a. How many moles of O2 are required to react completely with 29.8 mg of Fe? 4.00 x 10^-4 moles O2 b. How many grams Fe2O3, are produced from the complete reaction of 17.8 g of Fe? 25.4 g Fe2O3
February 14, 2012 by krystal

chemistry
H2 + I2 -> 2Hl 1.2 mol of hydrogen gas reacts with 1.0 mol of iodine vapour, after 5 minutes 0.6 mol of iodine remained. A) calculate the number of moles of hydrogen that have not reacted after 5 minutes. B) calculate the number of moles of hydrogen iodide that have been ...
December 12, 2012 by fiona

chemistry
4 moles of water are heated from 240 K to 310. find delta entropy and graph entropy against K . Info : delta H fusion of water is 5 kJ/mol delta H vaporization of water is 41.4 kJ/mol Cp of ice is 36 j/mol - k Cp of water in liters is 74 j/mol-k
February 1, 2009 by kat

chemistry
4 moles of water are heated from 240 K to 310. find delta entropy and graph entropy against K . Info : delta H fusion of water is 5 kJ/mol delta H vaporization of water is 41.4 kJ/mol Cp of ice is 36 j/mol - k Cp of water in liters is 74 j/mol-k
February 1, 2009 by kat

chemistry
in an experiment 5.00ml of 0.1440 mol L^1- aqueos KIO3 was reacted with an excess of aqueous iodide and the molecular iodine I2, Formed was titrated against 0.1000mol L^1- aqueous S2O3^2- the equation for the titration reaction is: I2(aq)+ 2 S2O3^2-(aq)---->S4O6^2-(aq)+ 2I...
November 16, 2011 by Yulieth

cHEMISTRY
Strontium metal is responsible for the red color in fireworks. Fireworks manufacturers use strontium carbonate, which can be produced by combining strontium metal, graphite (C), and oxygen gas. The formation of one mole of SrCO3 releases 1.220 x 10^3 kJ of energy. a) Write the...
February 1, 2007 by Jess

chemistry
CALCULATE THE NUMBERS OF MOLES OF POTASSIUM CHLORATE THAT MUST DECOMPOSE TO PRODUCE POTASSIUM CHLORIDE AND 1.80 MOLES OF GLYCOGEN GAS
March 16, 2011 by ALEX

General Chemistry
At a certain temperature, the equilibrium constant for the following chemical equation is 2.90. At this temperature, calculate the number of moles of NO2(g) that must be added to 2.53 mol of SO2(g) in order to form 1.10 mol of SO3(g) at equilibrium. SO2(g)+ NO2(g) <> SO3...
March 8, 2013 by marthy

Chemistry
calculate the theoretical yield (in grams) of the solid product, assuming that you use 1.0 g FeC2O4×2H2O and that oxygen is the excess reactant. FeC2O4×2H2O (s) + O2(g) ---> FeO(s) + H2O(g) + CO2(g) Its balanced equation is 2FeC2O4×2H2O (s) + O2(g)----> 2FeO(s) + 4H2O(g...
October 14, 2010 by sonya

biology
C6H12O6=180 gm to make 1M how much H2O will you need? to make a o.1M how much H2O will you need?
September 21, 2010 by ad

Chem 11
So I did a lab determining the chemical formula of a hydrate. I really just need somebody to check this over for me. We had to find the molecular formula of a hydrate of copper (2) sulphate, CuSO4 .xH2O. My observation table looks like this: Mass of clean, dry test tube: 21.6g...
November 18, 2014 by Katherine

chemistry
Which of the following mixtures will be a buffer when dissolved in a liter of water? a. 0.1 mol Ca(OH)2 and 0.3 mol HI b. 0.3 mol NaCl and 0.3 mol HCl c. 0.4 mol NH3 and 0.4 mol HCl d. 0.2 mol HBr and 0.1 mol NaOH e. 0.2 mol H3PO4 and 0.1 mol NaOH i think e is answer but not ...
May 21, 2010 by George2

Chemistry
A .7178 g sample of a hydrocarbon occupies a volume of 390.7 mL at 65C and 99.2kpa. When the sample is burned in excess oxygen, 2.4267 g CO2 and .4967g H2O are obtained. What is the molecular formula of the hydrocarbon? Write a plausible structural formula for the molecule. ...
September 28, 2014 by Lisa

URGENT!! Chemistry HELP!!
Use standard enthalpies to calculate Triangle H for: 2C2H5OH (I) + O2 (g) -> 2CH3CHO (g) + 2H2O (I)
April 19, 2012 by Blair

Chemistry
One reaction of iron with hydrochloric acid is represented by the following thermochemical equation. Fe(s) + 2HCl(aq) ? FeCl2(aq) + H2(g); (Delta)H°= –87.9 kJ How much heat is liberated at constant pressure if 0.215 g of iron reacts with 40.4 mL of 0.579 M HCl? How much heat ...
March 24, 2013 by Raul

Chemisty (How do I calculate)
What is the Molar Enthalpy of Neutralization (ΔHn) in kJ/mol if 5.00 moles of HCl(aq) (acid) neutralized 5.00 moles of NaOH(aq) (base) and released 16396 J of heat?
June 27, 2013 by Mary

Chem Lab
What is the Molar Enthalpy of Neutralization (ÄHn) in kJ/mol if 5.00 moles of HCl(aq) (acid) neutralized 5.00 moles of NaOH(aq) (base) and released 2033 J of heat?
November 17, 2013 by brittany sheats

chemistry
magnesium metal (1.00 mol) and a volume of aqueous hydrochloric acid that contains .500 mol of HCL are combined and react to completion. how many liters of hydrogen gas, measured at STP, are produced? Mg(s) + 2HCL(aq) -> MgCl2(aq) + H2(g)
November 1, 2014 by Anonymous

physics
A 190 kg object and a 490 kg object are separated by 0.400 m. At what position (other than an infinitely remote one) can the 35.0 kg object be placed so as to experience a net force of zero? ------------ m from the 490 kg mass I do not understand how to attack this problem. ...
November 30, 2008 by tina

chemistry
a 3.11g sample of one of the halogens, Xsubscript2, is shown to react with NaOH to produce 2.00g NaX. the equation is 2NaOH+X subscript 2 yields NaX+NaXO+ water. Assuming that the percent yield of product is 100% identify the halogen.
February 10, 2011 by callie

chemistry 122
81) According to the following thermochemical equation, what mass of HF (in g) must react in order to produce 345 kJ of energy? Assume excess SiO2. SiO2(s) + 4 HF(g) �� SiF4(g) + 2 H2O(l) DH°rxn = -184 kJ 81) A) 173 g B) 37.5 g C) 150. g D) 107 g E) 42.7 g
December 11, 2012 by sean

Science
Sodium peroxide reacts vigorously with water to produce sodium hydroxide and oxygen. The unbalanced equation is Na2O2(s) + H2O(ℓ)→ NaOH(aq) + O2(g). What mass of O2 is produced when 81 g of Na2O2 react? Answer in units of g
March 11, 2015 by Farrell

chem 121
Iron and oxide react to form iron(lll) oxide: 4Fe(s) + 3O2(g)+ 2FeO2(s) Determine the limiting reactant in each of the following mixtures of reactants: 2.0 moles of Fe and 6.0 moles of O2
November 18, 2011 by claire

Chemistry
I could use some help please. Ammmonia, NH3, can be made by reacting Nitrogen with Hydrogen. N2+3H2=2NH3 How many moles of NH3 can be made if 7.5 moles of H2 react eith enough N2? Thank-you in advance for any help
March 18, 2013 by Sara

chemestry C
how many moles of aluminum oxide can be produce from 12.8 moles of oxigen gas reacting with execess aluminum
November 14, 2011 by lola

Chemistry
Calculate the average disappearance of A between t=0 min and t=10 min in units of M/s. 0 min there are .065 moles of A 10 min there are .051 moles of A 20 min there are .042 moles of A 30 min there are .036 moles of A 40 min there are .031 moles of A The total volume is 100.0 ...
November 13, 2009 by Anonymous

chemistry
The complete combustion of propane, C3H8(g), is represented by the equation: C3H8(g) + 5 O2(g) → 3 CO2(g) + 4 H2O(l) ΔH° = -2220 kJ How much heat is evolved in the complete combustion of 20.0 L C3H8(g) at STP?
May 14, 2014 by leah

Chemistry
Can someone check my answers for me thank you. This is my 3rd time posting this one up...maybe its just not going through bc I don't see it on the current ?s. 4NH3 + 7O2 --> 4NO2 + 6H2O 1)How many grams of oxygen are necessary to produce 4.50 moles of NO2? answer: 252 grams...
January 9, 2008 by Mike

Chemistry
Urgent! Considering the following equation. Na2Co3(s)+H3Po4(s)=>Na3Po4(s)+H2O(l)+CO2(g). a) what's the energy amount envolved in the reaction? b)what is the volum of the released gas? c)what the volum of the consumed phosphate acid, considering d=1,69g/ml? Really need to ...
May 27, 2012 by Usuario

chemistry
Here is the question: sodium hydride reacts with excess water to produce aqueous sodium hydroxide and hydrogen gas: NaH(s)+H2O-->NaOH(aq)+H2(g) A sample of NaH weighing ________g will produce 982mL of gas at 28.0 C adn 765 torr, when the hydrogen is collected over water. ...
June 17, 2009 by Gweedo

basic chemistry
If 0.50 mol of Na3PO4 is mixed with 0.30 mol of BaCl2, the maximum number of moles of barium phosphate which can be formed is: How do i set up the problem?
December 15, 2014 by Anonymous

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?
October 15, 2012 by Lana

acton high
how do you detect the presence of co2 in a liquid
September 24, 2008 by dave

chem
evaluate E^0 for the half reaction: CO2 (g) + 2H + 2e^- <--> HCOOH ( Aq)
November 16, 2008 by katya

Chem
Why are the phase diagrams different for water and CO2?
February 28, 2010 by Anonymous

chemistry
What is the volume in liters of 15.0kg of CO2 at STP
March 29, 2010 by Louisa Lou

Rodriguez
How many grams of CO2 will be produced when 29.0g of C3 H8 reacts with extra O2?
November 19, 2010 by Jessica

Chemistry
Determine the density of CO2 gas at STP.
April 3, 2011 by SusieQ

Chemistry
What mass of CO2 could be formed from the reaction of 16 g of CH4 with 32 g of O2 ?
June 20, 2011 by christi

Chemistry
How many grams of CO2 are formed when 32 g of O2 reacts with 23 g of C2H5OH?
January 29, 2012 by Bob

Chemistry
Are the concentrations of CO, H2O, CO2 and H2 necessarily equal
April 16, 2012 by Heather

Chemistry
If 84 g of CO2 were produced, how many grams of butanol were burned?
April 25, 2012 by Kali

Chemistry
What is C2H5OH+3O2>CO2+H2O balanced?
November 28, 2012 by Bri

Chemistry
How many grams of co2 are in 3.92 times 10 to the 24th molecules
April 11, 2013 by Shaun

chemistry
Is CO2 a product of an acid/base reaction?
November 12, 2013 by paige

chem
between Rn, CO2, CO, O2, Ar, N2 which is most abundant in the troposphere?
March 11, 2014 by coll

chemistry
What pressure in kpa is exerted by 94.6 g CO2 at 57°C in 0.750 dm 3
May 19, 2014 by Anonymous

chm
how does CO2 affect the titer of a solution of NaOH ?
September 13, 2014 by josh

science
I want to know whic n2 and co2 rms become same?
November 2, 2014 by sayan

AP chemistry
How do you balance ZnCO3 +O2 yields ZnO + CO2?
November 19, 2014 by Toni

Chemistry
Estimate the value of the equilibrium constant at 550 K for each of the following reactions. 1) 2CO(g)+O2(g)--->2CO2(g) 2) 2H2S(g)--->2H2(g)+S2(g) i used the equation K=e^(delta G/RT) for the first problem and got K=1.40*10^-49 but it was wrong. Is there a different ...
April 17, 2010 by Kyle

Chemistry
Ethanol is a fuel that can be made from corn. How many kJ of heat energy are released when 3.00 kg of ethanol are burned? C2H5OH(l) + 3O2(g) ¨ 2CO2(g) + 3H2O(g) H = -1406.8 kJ/mol
April 17, 2010 by Marcus

Chemistry
A mixture of three gases has a total pressure of 1380 mm Hg at 25 degrees celsius. If the mixture contained 56 grams CO2, 3.04 mol CO and 9.03 X 10^23 atoms of Argon, the partial pressure of argon would be about? First I did 9.03e23 * 760/1 = 2.26e22 and then I was going to do...
January 14, 2012 by Hannah

Chemistry
i have to write a balanced equation for the combustion of benzene.. C6H6 + O2 ==> CO2 + H2O Answer: C6H6 + 14O2 --> 6C02 + 4H2O Your answer is incorrect. There are more oxygen on the left, and more hydrogen on the right. try coefficients 2,15,12,6
August 7, 2007 by Anonymous

AP Chem
2) For a theoretical yield of 19 g and actual yield of 11 g, calculate the percent yield for a chemical reaction. Answer in units of %. 11 g / 19 g times 100 = 57.89% in your 2 sigfig problem, you might be expected to round off to 58% ======================================... ...
October 28, 2013 by Anonymous

chemistry
Propane fuel is used in BBQs. Use the following reaction to determine how many moles of oxygen gas are needed to react with 1.6 moles of propane gas. C3H8(g)+5O2(g) --------> 4H2O(g)+ 3CO2(g)
March 30, 2015 by stacy

chemistry
Given that 1mole of propane react with 5 moles of Oxygen.find the number of moles of Oxygen reacted with 2.2g of propane
October 26, 2014 by Kealeboga

Chemistry
A compound containg 3 atoms of carbon and 8 atoms of hydrogen is combined in a reaction with oxygen molecules. The two end products of this equation are carbon dioxide (CO2) and water. What element should you look at first in balancing this equation? Is the answer a.b.c or d? ...
July 4, 2008 by Mickey

Chemistry
A compound containg 3 atoms of carbon and 8 atoms of hydrogen is combined in a reaction with oxygen molecules. The two end products of this equation are carbon dioxide (CO2) and water. What element should you look at first in balancing this equation? Is the answer a.b.c or d? ...
July 4, 2008 by MV

Chemistry
according to the balanced chemical equation 2SO2<--- 2 is a subscript...so anyway it's 2SO2+ O2 ----> 2SO3 How many liters of oxygen would be needed to produce 0.5 moles of sulfur trioxide, SO3?
October 1, 2013 by lanony(please help)

Chemistry
What mass of AlCl3 can be formed from 5.000 mol NiCl2 and 2.000 mol Al? Al(s) + NiCl2(aq) → AlCl3(aq) + Ni(s) I balanced it to 2Al + 2NiCl2 -> 2AlCl3 + 3Ni I'm not sure how to go about this. I converted the moles into grams, but I feel like the balanced equation falls...
January 24, 2013 by MewBanks

chemistry
Fructose is a sugar commonly found in fruit. A sample of fructose, C6H12O6, weighing 4.50 g is burned in a bomb calorimeter. The heat capacity of the colorimeter is 2.115 E4 J/ºC. The temperature in the calorimeter rises from 23.49ºC to 27.71ºC. A)What is q for the calorimeter...
January 28, 2007 by Chris

chemistry
Hydrogen and oxygen react according to the equation: 2H2 + O2 -> 2H2O. According to Avogadro's law, how many liters of hydrogen are required to react with 2.0 L of oxygen at STP? How do you set this equation up and find the answer???
March 28, 2010 by Jen

Chemistry ( I NEED HELP, PLEASE!!!!, IM DESPERATE)
Sodium peroxide reacts vigorously with water to produce sodium hydroxide and oxygen. The unbalanced equation is Na2O2(s) + H2O(ℓ)→ NaOH(aq) + O2(g). What mass of O2 is produced when 81 g of Na2O2 react?
March 11, 2015 by Farrell

Chemistry ( I NEED HELP, PLEASE!!!, IM DESPERATE!)
Sodium peroxide reacts vigorously with water to produce sodium hydroxide and oxygen. The unbalanced equation is Na2O2(s) + H2O(ℓ)→ NaOH(aq) + O2(g). What mass of O2 is produced when 81 g of Na2O2 react?
March 11, 2015 by Farrell

Chemistry
How many moles of nitrogen are needed to produce 1.52 moles of nitrogen (ll) oxide ? N2 + O2 > FeCL3 + 3H20
March 24, 2012 by jake

Chemistry - enthalpy of combustion(help!!!)
i need help with the below question, i have tried answering it, but do not know where to go after the equations, please start me off on how to find the enthalpy of combustion of at least one.... Consider methane, CH4, and hydrogen, H2, as possible fuel sources. (a) Write the ...
June 8, 2011 by Farah

Chemistry
If 0.110 mol of liquid H2O and 40.5 g of solid Al2S3 are reacted stoichiometrically according to the balanced equation, how many moles of solid Al(OH)3 are produced?
May 21, 2009 by Julie

Math
Peter solved this equation 6 x y = 490 - 4 6 x y = 486 y = 492 Explain his mistake.
March 15, 2013 by Isabella

Chemistry
N2 and O2 gases react to form dinitrogen pentoxide(N2O5).Calculate deltaH and deltaU for this process per mol of N2 gase knowing that when 101.7g of N2 react with 102.97g of O2 at 25DegC and a constant pressure of 1 atm, 533.5kJ of energy is released as heat. 2N2g + 5O2g-----...
December 9, 2011 by ndate

Algbera
which angle is coterminal with an angle measuring 130 degrees? 230 130 -490 490 none of these
May 21, 2014 by Kevin

chemistry
Hello, a few questions: Thanks so much! 1. The heat capacities of titanium and water are 0.522 J g-1 K-1 and 4.184 J g-1 K-1, respectively. What is the final temperature of the titanium-water mixture if a 175.0-g sample of titanium, initially at 90.0oC, is added to 50.0 g of ...
March 1, 2014 by abby

Chemistry Need Help!
Okay, the reaction is this: Naphthalene + HNO3 ---> NitroNapthalene The limiting reagent is Naphthalene The excess is the nitric acid The equation is 1:1 balanced as far as I know 3 g of Nap used in the experiment x 1mol/128.17 g/mol = .023 mol Nap 12.69 g used in the ...
March 4, 2014 by ChrisZZ

Chem
Use the table to calculate an approximate enthalpy or heat of reaction for the combustion of one mole of methane gas (CH4) to form gaseous H2O and CO2. What Volume (in L) of methane is needed to produce 3329 kJ of heat for methane gas at 36 oC and 9.15 atm pressure? I got 20.7...
November 16, 2012 by Anonymous

Chem
Use the table to calculate an approximate enthalpy or heat of reaction for the combustion of one mole of methane gas (CH4) to form gaseous H2O and CO2. What Volume (in L) of methane is needed to produce 3329 kJ of heat for methane gas at 36 oC and 9.15 atm pressure? I got 20.7...
November 16, 2012 by Anonymous

Chemisty
N2+3H2=2NH3 Assume 0.150 mol of N2 and 0.477 mol of H2 are present initially. After complete reaction, how many moles of ammonia are produced?
April 20, 2012 by Jenn

Chemistry
How many moles of sulfuric acid are required to neutralize 0.80 mol of sodium hydroxide? H2SO4 + 2NaOH -> Na2SO4 + 2H2O I got 0.40 mol. Is this right?
May 13, 2013 by Anonymous

Science
According to the following thermochemical reaction, how much energy is involved in the reaction of 18.5 g of NaHCO3? Is the reaction endothermic or exothermic according to how the thermochemical equation is written? 2NaHCO3(s) + 129 kJ → Na2CO3(s) + H2O(l) + CO2(g)
May 27, 2014 by Jenna

chemistry
I just can't do this... Two moles of potassium chloride and three moles of oxygen are produced from the decomposition of two moles of potassium chorate. What is the balanced equation? How many moles of oxygen are produced from twelve moles of postassium chlorate? potassium ...
January 15, 2007 by Tabby

Chemistry Lab
We did a lab where we reacted antacid with HCL and measured the pressure increase after the reaction. Then we found the percent concentrations of calcium carbonate of the antacid tablet. The question is: say the percent of calcium carbonate from trials 1 & 2 are consistent ...
January 20, 2009 by Shaniquaa

Chemistry
This isn't exactly a homework question, I'm just trying to understand the concept we learned today... So say we had: 4Fe + 3O2 → 2Fe2O3 + 1.65 x 10^3 kJ Does that mean for every 4 mol of Fe, 3 mol of O2, and 2 mol of Fe2O3 we have 1.65 x 10^3 kJ? And if I were to ...
February 6, 2013 by A Canadian

chem
The equilibrium constant Kc equals 5.90 for the reaction CH3COOH + C2H5OH <==> CH3COOC2H5 + H2O Find the molar concentrations of acetic acid, ethanol, ethyl acetate, and water at equilibrium when .10 M acetic acid and .20 M ethanol are allowed to equilibrate. I started ...
April 16, 2007 by JP

chemistry
7. Write the balanced equation for the equation for the reaction of magnesium with HCl. What is the mole ratio between magnesium and magnesium chloride will be produced? If 2.5g of magnesium react, how many moles of magnesium chloride will be produced? How many grams of ...
January 19, 2010 by pj

AP Chem
Would someone please check these for me? 52. In an experiment, you fill a heavy-walled 5.00-L flask with methane gas, CH4. If the flask contains 7.13 g of methane at 19 degrees C, what is the gas pressure? 2.14 atm 56. A 2.50-L flask was used to collect a 5.65-g sample of ...
November 19, 2008 by Anna

math
how do you calculate theoretical yield of something? I don't know where to find the formula You go to the balanced chemical equation, and look at the mole ratio between the reactants and products. The theoretical yield is the value calculated from stoichiometry of a reaction. ...
January 31, 2007 by james

Chemistry
When 0.3212g of glucose was burned in bomb calorimeter of calorimeter constant 641J/K, the temperature rose by 7.943 K. Calculate a) the standard molar internal energy of combustion b) the standard enthalpy of combustion and c) the standard enthalpy of formation of glucose. (...
May 4, 2010 by Nadira

chem
frozen carbon dioxide, CO2. what is dry ice
April 21, 2007 by DrBob222

Chemistry
Can someone help me balance this i tried and didn't succeeded. Fe2O3 + CO --> Fe + CO2
January 6, 2008 by John

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