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March 6, 2015

Search: how many moles of oxygen gas can be produced from the decomposition of 61.28 grams of potassium chlorate?

Number of results: 23,199

applying stoichiometry
Propane (C3H8) + oxygen------> carbon dioxide + water how many grams of carbon dioxide are produced from the reaction of 35.2 grams of propane?
February 5, 2012 by danielle

Chemistry
How many grams of carbon dioxide are produced if you react 200g of benzaldehyde reacr with 32g of oxygen? its stoichiometry, i have no idea how to do this...
January 12, 2010 by Jason

physics practical investigation
Plan,design and conduct an investion to find out whether the amount of heat(gas) produced will depend on an increase on the concentration of Hcl when Hcl reacts with an excess zn..guidance/hint...you may investigate either the amount of heat produced or the amount of gas ...
March 25, 2013 by Jossie

chemistry
A gaseous mixture containing 5 moles of H2 and 7 moles of Br2 reacts to form HBr. Write a balanced chemical equation. Which reactant is limiting? What is the theoretical yield in moles? What is the theoretical yield for this reaction in grams? How many moles of excess reactant...
December 4, 2011 by Zoe

chemistry 2
A certain laser uses a gas mixture consisting of 9.0 grams of Hydrogen chloride, 2.0 grams Hydrogen gas, and 165.0 grams of Neon. What pressure is exerted by the mixture in a 75.0 liter tank at 22 degree Celsius? Which gas has the smallest partial pressure?
November 24, 2014 by angelveb

chemistry
Ethylene gas (C2H2) can be formed from the reaction of calcium carbide (CaC2) with water. What is the reaction rate if 14.2 grams of ethylene gas are produced over 4.00 seconds? The units are mol/s.
February 14, 2015 by danny

physics
Question Part Points Submissions Used 1 /1 0/2 Total /1 A rigid tank contains 1.40 moles of an ideal gas. Determine the number of moles of gas that must be withdrawn from the tank to lower the pressure of the gas from 21.6 atm to 5.90 atm. Assume the volume of the tank and ...
November 23, 2011 by Sarah

Chemistry
Find the mass of water (H2O) needed to react with 150 grams of potassium (K) 2K(s) + 2 H2O (g)-2KOH +H2(g) How do I get the number of moles in H2O? Desperate to understand this. I got K= 150g./39.0983=3.84 mols of K. Then would it be 3.84(2mols H2O/7.68) How do I get the ...
October 27, 2014 by Teresa

Chemistry
i seriously do not understand the formula for this problem :( The reaction for the decomposition of dinitrogen monoxide gas to form an oxygen radical is: N2O(g)==>N2(g)+O(g) . If the activation energy is 250 kJ/mol and the frequency factor is 8.0 x 1011 s-1, what is the ...
March 3, 2010 by Bababab

chemistry
How many grams of potassium nitrate are required to produce 5.00 g of potassium nitrite according to the equation below? 2KNO3(s) ---> 2KNO2(s) + O2(g)
June 19, 2010 by andrea.

Chemistry
How many grams of potassium phosphate must be dissolved in 3.75 Liters of water to produce a soltuion that contains 8*10^23 potassium ions?
February 14, 2012 by Whitney

Chemistry
How many grams of potassium phosphate must be dissolved in 3.75 Liters of water to produce a soltuion that contains 8*10^23 potassium ions?
February 14, 2012 by Mary

Earth Science
If you started with 100 grams of Potassium-40 how much would reamin Potassium-40 after 3.9 x 10 to the 9th years?
May 25, 2012 by Donna

General Chem
At a given temperature and pressure, the volume of a gaseous sample is directly proportional to the moles of gas (volume = C * moles, where C is a constant). Assuming that the tempreature and pressure is the same for the reaction of magnesium with HCl(aq) and zinc with HCl(aq...
March 11, 2013 by Amy

Chemistry
how many grams of solid iodine are produced by the decompostion of 2.1 g of hydrogen iodide gas?
November 12, 2011 by Taylor

Chemistry
calculate the number of grams of nitrogen dioxide that are produced from 2 moles of nitric oxide 2NO(g)+Osub2(g)---->2NOsub2(g)
February 11, 2009 by Sarah

chemistry
How many grams of hydrogen peroxide must decompose to give 255 mi of oxygen gas at stp?
April 27, 2011 by courtney

chemistry
How many grams of hydrogen peroxide must decompose to give 255 mi of oxygen gas at stp?
April 27, 2011 by courtney

chemistry
C6H12O6(s) +6CO2(g) +6H2O9g) 1) given 2 moles of glucose and 14 moles of O2, how many moles of CO2 could be produced? 2) which is the limiting reactant ? 3) how many moles of the excess reactant remain?
May 23, 2010 by Mickey

chemistry
Calcium reacts with water to yield calcium hydroxide and water according to the following equation: Ca + 2H2O ==> Ca(OH)2 + H2 . How many moles of hydrogen will be produced if 3115.8 grams of calcium hydroxide is produced?
January 25, 2013 by charlene W

Chemistry
How many mole of H2 will be produced if 0.500 grams of magnesium is reacted with 10.00mL of 2.0 M HCl? I've concluded the answer is 0.02 moles of H2, but I'm doubting myself a lot because I don't understand the aspects of the balanced chemical equation and how that affects the...
October 22, 2011 by Martin

Chemistry
Consider the gas-phase equilibrium A ⇌ B. In a series of experiments, different initial amounts of A and B are mixed together, and the mixture in each case is allowed to come to equilibrium. Which one of these experiments would yield values for the amounts of A and B ...
March 8, 2010 by Val

Chem
Could someone please walk me through step by step on how to do this. Propane (C3H8) burns in oxygen to produce carbon dioxide and water. C3H8(g) + 5 O2(g) 3 CO2(g) + 4 H2O(g) Calculate the mass of CO2 that can be produced if the reaction of 48.2 g propane and sufficient oxygen...
October 7, 2010 by Jennifer

chemistry
In the reaction Mg(s) + 2HCl(aq) d H(g) + MgCl(aq), how many moles of hydrogen gas will be produced from 250.0 milliliters of a 3.0 M HCl in an excess of Mg?
February 21, 2013 by Payton

AP Chemistry
2K (s) + 2H2O (l) --> 2KOH (aq) + H2 (g) When 0.400 mole of potassium reacts with excess water at STP, what is the volume of hydrogen gas produced? the answer is 4.48 liters but I keep getting wrong numbers! please help! Thanks!
October 2, 2008 by Andrew

chemistry 21
13. Pure copper may be produced by the reaction of copper(I) sulfide with oxygen gas as follows: Cu2S(s) + O2(g) _ 2Cu(s) + SO2(g) If the reaction of 0.540 kg of copper(I) sulfide with excess oxygen produces 0.140 kg of copper metal, what is the percent yield? A) 32.5% B) 25....
January 31, 2010 by lee

Chemistry
2C2H6+7O2=4CO2+6H2O how many moles of H2O are produced when a mixture of 0.427 moles of O2 and 0.150 moles of C2H6 is burned, iv already found moles of H2O for them separately.
March 17, 2013 by Angela

Chem
Ca(s) + 2H+(aq) → Ca2+(aq) + H2(g) An experiment is performed to determine the volume of hydrogen gas produced when calcium reacts with excess HCl(aq) as represented by the net ionic equation above. A 0.0720 g sample of pure calcium and a solution of 1.0 M HCl(aq) were ...
April 23, 2013 by Jess

chem 102
Use Henry's law and the solubilities given below to calculate the total volume of nitrogen and oxygen gas that should bubble out of 1.1L of water upon warming from 25 ∘C to 50 ∘C. Assume that the water is initially saturated with nitrogen and oxygen gas at 25 &#...
February 18, 2014 by ieshia

chemistry
If 0.0418 grams of Mg are reacted with excess HCl, how many moles of hydrogen gas will be formed?
March 19, 2012 by dev

Chemistry
In the formation of acid rain, sulfur dioxide reacts with oxygen and water in the air to form sulfuric acid. Write the balanced chemical equation for the reaction. 2 SO2 + 1 O2 + 2 H2O --> 2 H2SO4 If 5.45 g SO2 react with excess oxygen and water, how many grams of H2SO4 are...
February 3, 2008 by ChaCha

Chemistry
If 150.0 g of butane (C4H10) gas are burned, how many grams of carbon dioxide gas will be produced? Report your answer to the nearest whole number and do not include units in your answer. Do not use scientific notation for your answer. This is a stoichiometry problem.
July 8, 2012 by Abby Walker

chem
In the reaction of calcium metal and water, 50.0 mL of hydrogen gas is collected over water at 25.0 degrees C with a total pressure of 752 mmHg. Calcualte the number of moles of hydrogen gas that was produced. Do we just plug this into n=pv/rt ? or is there like an extra step?
May 11, 2008 by natash

Chemistry Need Help
Given the chemical equation, Cl2 + F2 2ClF, how many moles of ClF are produced in the reaction, if 1.50 moles Cl2 are made to react with 1.75 moles F2 ? I got the answer 3.50 moles but it was wrong. Can anyone help me please.
February 27, 2015 by Matthew

chemistry
Find the mass of water (H2O) needed to react with 150 grams of potassium (K) 2K(s) + 2 H2O (g)-2KOH +H2(g) How do I get the number of moles in H2O? Desperate to understand this. I got K= 150g./39.0983=3.84 mols of K. Then would it be 3.84(2mols H2O/7.68) How do I get the ...
October 27, 2014 by Teresa

Chem
Potassium permanganate (KMnO4) solutions are used for the determination of iron in samples of unknown concentration. As a laboratory assistant, you are supposed to prepare 200. mL of a 0.300 M KMnO4 solution. What mass of KMnO4, in grams, do you need? I got 60, but that's ...
October 5, 2012 by Anonymous

chemistry
how do i determine the number of moles of each ion produced as well as the total number of moles of ions produced when 1 mole of KI dissolves in water?
November 23, 2009 by lynda smith

chemistry
If four grams of Oxygen and four grams of Helium are placed in a five liter vessel at 338 K, what will be the partial pressure of each gas and the total pressure in the vessel?
March 5, 2015 by Greg

chemistry
If 20.50 grams of calcium chlorate decompose what mass of each product will form
January 19, 2012 by billy

Chemistry/stoichiometry
For the reaction shown, calculate how many moles of NO2 form when each amount of reactant completely reacts. 2N2O5g = 4NO2g+O2g I am assuming that the first question must be converted to grams and the second question must be converted to kilograms I just need to know how to ...
October 26, 2012 by Dale

chem
when water is added to solid calcium carbide, CaC2, acetylene gas, C2H2, and calcium hydroxide, Ca(OH)2 are produced. how many moles of acetylene are produced when 0.50 mole of calcium carbide reacts? can anyone explain this to me please
April 14, 2010 by herjaz

chemistry
if 25 Liters of H2 is reacted with excess chlorine gas ( Cl2 ), how many grams of HCl can be produced?
February 16, 2011 by sadie

chemistry
If tums is added to 20.0 mL of 0.400 M HCl solution, how many grams of CO2 gas are produced?
April 22, 2011 by Starlit

chemistry
What are the steps to determine how much Nitrogen Gas can be produced from 32.5 grams of Sodium Nitrate?
May 30, 2011 by Dax

Chemistry
In a certain reaction, 300.23 grams of solid aluminum sulfide combine with unlimited aqueous silver nitrate. How many moles of aluminum sulfide react? How many moles of each product will be produced? First of all, is the reaction a double replacement or not? I have so much ...
December 7, 2009 by Paula

Chemistry
How many grams of oxygen gas must react to give 2.80g of ZnO? 2Zn(s)+O2(g)→2ZnO(s)
November 25, 2014 by McKenzie

chem
when water is added to solid calcium carbide, CaC2, acetylene gas,C2H2,and calcium hydroxide,Ca(OH)2, are produced. how many moles of acetylene are produced when 0.50 mole of calcium carbide reacts?
April 19, 2010 by 6784

chemistry
Acetic acid (CH3COOH) reacts with isopentyl alcohol (C5H12O) to yield the ester isopentyl acetate which has the odour of bananas. If the yield from the reaction is 45%, how many grams of isopentyl acetate are formed when 3.90 g of acetic acid and 6.28 grams of isopentyl ...
November 17, 2011 by kim

Science
How many grams of barium carbonate can be produced from mixing 100.0 mL of 0.20M barium nitrate and 50.0 mL of 0.30M potassium carbonate?
March 14, 2012 by Mallory

Chemistry
How much heat will be released when 0.750 moles of carbon monoxide (CO) react in an excess of oxygen gas? 2CO(g) + O2(g) 2CO2(g) + 566 kJ
September 15, 2014 by Summer

Chemistry
I have an exam in a day and I'm confused on how to solve this question. Do I use PV=nRT? Do I find out the molecular formula of the gas from the percentage of nitrogen and oxygen? A sample of a mixture of gases contains 80.0% nitrogen gas and 20.0% oxygen gas by volume. ...
June 22, 2014 by Jenny

chemistry
From the following combustion: 1-butanol + oxygen = carbon dioxide + water. How many grams of carbon dioxide and water are produced when 130.6 grams of 1-butanol is completely burned? Please help me! I have not a clue! Thanks so much!
November 28, 2009 by Turtle Lover

Chemistry
If 8.00 moles of NH3 reacted with 14.0 moles of O2, how many moles of H2O will be produced? 4NH3 (g) + 7O2 (g) --> 4NO2 + 6H2O (g)
December 11, 2011 by Argh

chemistry
When hydrochloric acid reacts with zinc metal, zinc chloride and hydrogen gas are produced. How many moles of hydrochloric acid are needed to react with 2.3 moles of zinc?
May 5, 2011 by jadealexia

chemistry
When hydrochloric acid reacts with zinc metal, zinc chloride and hydrogen gas are produced. How many moles of hydrochloric acid are needed to react with 2.3 moles of zinc?
May 5, 2011 by Zuh-He.

Chemistry
A gas mixture containing N2 and O2 was kept inside a 2 L container at a temperature of 23 C and a total pressure of 1 atm. The partial pressure of oxygen was .722 atm. How many grams of nitrogen were present in the gas mixture?
July 20, 2013 by Sara

chemistry
Assuming all volume measurements are made at the same temperature and pressure, how many liters of carbon dioxide gas can be produced when 12.8 liters of oxygen gas react with excess carbon monoxide? Show all of the work used to solve this problem.
December 19, 2011 by sarena

Chem
Then, determine the final volume needed to dilute 20.0 ml of 1.00 M NaOH to 0.25 M. Next, find the volume of water which needs to be added. Finally, determine the moles and the mass in grams of NaOH in the solutions. Do I take 60 ml and convert it to moles and grams? 60ml ...
September 28, 2014 by Feather

Chemistry honors
20 grams magnesium metal react with excess oxygen and 28 grams of magnesium oxide are produced in lab what is percent yield? If 99.8 g of aluminum nitrate are reacted with excess sulfuric acid what would be the theoretical yield in grams of aluminum sulfate? i have done both ...
December 4, 2014 by lynn

Chemistry
Hydrogen sulfide is an impurity in natural gas that must be removed. One common removal method is called the Claus process, which relies on the reaction: 8 H2S(g) + 4 O2(g)--> S(l) + 8 H2O(g) Under optimal conditions the Claus process gives 98% yield of S8 from H2S. If you ...
October 31, 2011 by Jen

chemistry
How many grams of carbon can be burned in 15 dm3 of oxygen and many dm3 of CO2 is produced?
April 17, 2012 by Allen

General Chemistry
Methanol is produced as the sole product of the combination of carbon monoxide gas and hydrogen gas. If 3.12X103 kg of methanol are actually produced, what is the precent yield if you start with 430.0 kg of hydrogen gas?
February 21, 2011 by Samm

Physics plzzzzzzzzz help
so ? A Goodyear blimp typically contains 4770 m3 of helium (He) at an absolute pressure of 1.10 x 105 Pa. The temperature of the helium is 274 K. What is the mass (in kg) of the helium in the blimp? This is just a case of applying the ideal gas law, n = PV/RT. You know the ...
December 1, 2006 by maysam

Chemistry
92.01 grams of N2O4 (g) is placed in a container and allowed to dissociate. N2O4 (g) --> 2NO2 (g) The mixture of N2O4 and NO2 resulting from the reaction occupies 36.0 liters at a total pressure of 773 mmHg and 45 C. A. Let x equal the moles of N2O4 that dissociate. How ...
August 4, 2011 by Neha

chemistry
Ammonium carbonate decomposes upon heating according to the following balanced equation: (NH4)2CO3(s)-->2 NH3(g)+CO2(g)+H2O(g) Calculate the total volume of gas produced at 25 C and 1.07atm by the complete decomposition of 11.86 g of ammonium carbonate.
April 16, 2010 by jason

Chemistry
Ammonium carbonate decomposes upon heating according to the following balanced equation: (NH4)2CO3(s)-->2 NH3(g)+CO2(g)+H2O(g) Calculate the total volume of gas produced at 25 C and 1.07atm by the complete decomposition of 11.86 g of ammonium carbonate.
April 16, 2010 by Zoe

Chemistry
Ammonium carbonate decomposes upon heating according to the following balanced equation: (NH4)2CO3(s)-->2 NH3(g)+CO2(g)+H2O(g) Calculate the total volume of gas produced at 25 C and 1.07atm by the complete decomposition of 11.86 g of ammonium carbonate.
April 16, 2010 by Zoe

Science
There is 40% of oxygen. If your mineral sample has a mass of 10g, how many grams of oxygen does it have. wouldn't it have 4 grams? yes, exactly right.
December 10, 2006 by Katie

Chemistry
Please show me the steps..... At STP, 3.00 L of nitrogen gas contains the same number of molecules as A) 1.00 L of nitrogen gas B) 2.00 L of oxygen gas C) 3.00 L of chlorine gas D) 4.00 L of hydrogen gas
December 1, 2010 by Kiesha

chemistry
If 448 L of ethene gas are reacted with excess water at STP, how many grams of ethanol will be produced?
April 7, 2011 by alex

Chemistry
For a given sample of CH3OH, the enthalpy change on reaction is 17.0 kj. How many grams of hydrogen gas are produced?
November 10, 2012 by Sherri

chemistry
The gas phase reaction between nitrogen gas and oxygen gas to give NO gas is an endothermic process since 180.8 kJ of heat energy is absorbed when 1 mol of nitrogen reacts with 1 mol of oxygen. In which direction will the equilibrium be shifted if the temperature is increased...
April 20, 2011 by Rebekah

physics
If 8.00 moles of a monatomic ideal gas at a temperature of 260 are expanded isothermally from a volume of 1.08 to a volume of 4.14 .Calculate the work done by the gas.Calculate the heat flow into or out of the gas.If the number of moles is doubled, by what factors do your ...
December 9, 2010 by demitri

Chemistry
I was given a question on an assignment and I can't figure it out. The question is A student collects 90ml of oxygen gas over water at 25c and a total pressure of 99.3kPa from the decomposition of KClO3. 2KClO3(s)-> 2KCl(s)+ 3O2 a) How many mols of O2 were collected? b)How ...
March 6, 2010 by Krissy

Chem
Please tell me if these are right? A mixture of oxygen and helium is prepared for a scuba diver that will descend to 125 feet below the ocean surface. At that depth the diver breathes a gas mixture that has a total pressure of 8atm. If the particle pressure of the oxygen in ...
November 29, 2010 by Lindsay

Chemistry
Calculate the amount of heat required to raise the temperature of 3 moles of oxygen gas from 298 to 400K. Given that C, of O2 is 29.36 Jmole-'K-'. Please show how to do it.
January 18, 2013 by Dermot

CHemistry
im not sure how u solve these types of problems... How many moles of NaOH are contained in 200ml of a 0.1M of NaOH? How many grams of NaOH are contained in 500ml of a .5M solution of NaOH? <<How many moles of NaOH are contained in 200ml of a 0.1M of NaOH? >> A 0.1 ...
April 21, 2007 by Phil

chem
A scuba diver's tank contains .25 kg of oxygen compressed into a volume of 4.3 L (for oxygen, 32g = 1 mole) Calculate the gas pressure inside the tank at 9 degrees Celsius What volume would this occupy at 26 degrees Celsius and .95 atmospheres? can someone tell me how many ...
November 2, 2010 by Bob

Chemistry
a mixture of 10cm^3 of C5H12 and 0.084g of C12H24 was passed with an excess of oxygen. after cooling to room temperature, the reaidual gas was passed through aqueous potassium hydroxide. what volume was absorbed by the alkali
February 21, 2014 by Ellen Cameron

science
ethanol, C2H5OH, is responsible for the effts of intoxication felt after drinking alcoholic beverages. When ethanol burns in oxygen, carbon dioxide and water are produced. IF you have 256g of ethanol and 100 grams O2, calculate the amount product produced. You need to write ...
February 6, 2011 by liz

Chemistry
For the reaction 2Zn plus O2>> 2ZnO, how many grams of zinc oxide can be produced from 100.g each of zinc and oxygen?
March 18, 2008 by Whittney

Algebra
The pressure of a gas varies jointly as the amount of the gas (measured in moles) and the temperature and inversely as the volume of the gas. If the pressure is 975 kPa(kiloPascals) when the number of moles is 4, the temperature is 250 K, and the volume is 320 cc, find the ...
December 5, 2012 by Nicole

chem
Help a brother out!!! please!!!Nitroglycerin, C3H5N3O9 decomposes to form N2,CO2,H2O, and O2 4(C3H5N3O9)-> 6N2+12O2+10H20+O2 a)How many grams of water would be produced if 75g of nitroglycerin decompose? b)The creation of 3.89 moles of C02 would require how many grams of ...
September 28, 2013 by bob

chemistry
I'm stumped again :( the question is - A gas sprayed from an aerosol can effuses 5.06 times slower than oxygen.If the molar mass of oxygen is 32.g/mol, what is the molar mass of the unknown gas? I dont know if I am doing the ideal gas law or grahams law or how to set it up. ...
January 11, 2010 by hellogoodbie

Chemistry
A sample of oxygen gas has a volume of 8.00 L at 20.0 C and 700. torr. How many moles does the sample contain?
November 30, 2010 by Kiesha

Chemistry
A sample of oxygen gas has a volume of 8.00 L at 20.0 C and 700. torr. How many moles does the sample contain?
December 1, 2010 by Anonymous

Chemistry
A sample of oxygen gas has a volume of 8.00 L at 20.0 C and 700. torr. How many moles does the sample contain?
December 1, 2010 by Anonymous

chemistry
When surface water dissolves carbon dioxide, carbonic acid (H2CO3) is formed. When the water moves underground through limestone formations, the limestone dissolves and caves are sometimes produced. CaCO3(s) + H2CO3(aq) Ca(HCO3)2(aq) What mass of limestone must have dissolved ...
February 9, 2010 by kat

chemistry
When surface water dissolves carbon dioxide, carbonic acid (H2CO3) is formed. When the water moves underground through limestone formations, the limestone dissolves and caves are sometimes produced. CaCO3(s) + H2CO3(aq) Ca(HCO3)2(aq) What mass of limestone must have dissolved ...
February 9, 2010 by kat

chemistry
When surface water dissolves carbon dioxide, carbonic acid (H2CO3) is formed. When the water moves underground through limestone formations, the limestone dissolves and caves are sometimes produced. CaCO3(s) + H2CO3(aq) Ca(HCO3)2(aq) What mass of limestone must have dissolved ...
February 9, 2010 by kat

chemistry
An unknown compound contains only carbon, hydrogen, and oxygen (CxHxOx). Combustion of 3.50G of this compound produced 5.13G of carbon dioxide and 2.10G of water A.How many moles of carbon, , were in the original sample? b. How many moles of hydrogen, , were in the original ...
February 8, 2014 by URGENT!

chemistry
Hydrogen gas produced by this reaction is typically collected via water displacement, during which time the hydrogen gas becomes saturated with water vapor. If 238.4 mL of gas with a total pressure 1.27 atm was collected via water displacement at 29.4 C, what is the partial ...
September 27, 2014 by A

Chemistry
A compound contains only potassium and iodine. A sample weighing 12.3 g of this compound contained 2.90 g of potassium. How many grams of iodine would there be in another sample of this compound containing 9.56 g of potassium? Do I find the mol of each (12.3 g, 2.90 g) or am I...
October 6, 2014 by Madoo

chem
ethane gas, or dicarbon hexahydride, undergoes cmbustion to produce carbon dioxide gas and water vapor. A. What mass of the un named reactant is required to react with 2.2 moles of ethane? B. How amny molecules of the product with the smaller % composition of the non oxide ...
May 10, 2011 by alex

Chemistry
Consider the gas-phase equilibrium A ⇌ B. In a series of experiments, different initial amounts of A and B are mixed together, and the mixture in each case is allowed to come to equilibrium. Which one of these experiments would yield values for the amounts of A and B ...
March 8, 2010 by Val

chemistry
how many grams of H2O will be produced if 32.0 grams N2O are produced in the reaction ?
June 28, 2012 by morgan

chemistry
If you used 0.500 grams of Mg and an excess of HCL, how much hydrogen gas should be produced at STP
April 5, 2011 by Anonymous

chemistry
iF 50.0 g of iron (II) carbonate react completely with hydrochloric acid, how many grams of carbon dioxide gas may be produced?
July 3, 2011 by cHARLIE

chemistry
How many grams of oxygen gas are required to produce 7.46 kJ of heat when hydrogen gas burns at constant pressure to produce gaseous water? 2 H2(g) + O2(g) → 2 H2O(g) ΔH = −484 kJ Liquid water has a heat of vaporization of 44.0 kJ per mole at 25C.
October 29, 2010 by caroline

chemistry
How many grams of oxygen gas are required to produce 7.46 kJ of heat when hydrogen gas burns at constant pressure to produce gaseous water? 2 H2(g) + O2(g) → 2 H2O(g) ΔH = −484 kJ Liquid water has a heat of vaporization of 44.0 kJ per mole at 25C.
October 31, 2010 by Emily

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