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May 24, 2016

Search: how many grams of O2 are consumed..

Number of results: 7,890

Chemistry
What is the concentration, in w/w%, of a solution prepared from 50.0 grams NaCl and 150.0 grams of water? I think it would be 25.0%, but I'm struggling with these new concentration calculations.
November 29, 2010 by Ann

Chemistry
If you start with ten grams of lithium hydroxide, how many grams of lithium bromide will be produced? Round to the nearest tenth. Don't forget the units.
January 9, 2011 by Katie

chem
Two hundred grams of a substance requires 0.52 kJ of heat to raise its temperature from 25C to 45C. q = mCT. Mass (m) is in grams. Temperature is in degrees Celsius.
May 17, 2011 by Pat

ap chemistry
The reaction of 9.5 grams of fluorine with excess chlorine produced 5.9 grams of ClF3. What percent yield of ClF3 was obtained? Answer in units of %
September 11, 2012 by cheri

chemistry
how much energy is released when 496 grams of ethylene (46.0 grams/moles) vapor condenses? the heat of vaporization of ethylene is 38.6 kj/mol.
November 2, 2012 by Anonymous

Chemistry
How many grams of chlorine are required to react completely with 5.00 grams of sodium to produce sodium chloride ? 2na + cl2 → 2nacl
March 29, 2013 by mispa

chemistry
A student stated that the solubility of KCL, at 20 degrees Celsius was 36 grams of KCL per 100 grams of solution. What is wrong with this statement?
March 8, 2014 by Anonymous

chemistry
A student stated that the solubility of KCl at 20 degrees Celsius was 36 grams of KCl per 100 grams of solution. What is wrong with this statement?
March 8, 2014 by Anonymous

AP Chemistry
The reaction of 5.1 grams of fluorine with excess chlorine produced 4.5 grams of ClF3. What percent yield of ClF3 was obtained? Answer in unites of %
December 2, 2015 by Zach

Physics
400 grams of a metal at 300 C is added to 100 grams of of water at 20 C. Assuming all the heat lost by the metal is gained by the water and that the final temperature or water and metal is 95 C, calculate the specific heat of the metal. Using grams and degrees C, the specific ...
October 20, 2015 by Sammie

chemistry
How many grams of HCOOH are needed to make 3.7 liters of aqueous solution of pH=3.5? I have followed the steps for a similar problem posted;I found x to 3.16e-4 mol/L but I'm having trouble converting it to grams.
October 6, 2010 by nick

CHEMISRTY
HOW MANY GRAMS OF MAGNESIUM ARE REQUIRED TO PRODUCE 2.154 GRAMS OF PRODUCT? STEP BY STEP EXPLAINATION
February 28, 2010 by Donna

Chemistry
What mass (in grams)of mercury will fit into a 2 L bottle? M= DV V= 2L= 2,00o mL D= 13.6 g/ mL Mass= 27, 200 grams??
April 7, 2010 by Amy

chemisrty
If 55.0 grams of KCIO3 is decomposed by the following equation, how many grams of oxygen can be produced? 2 KCIO3 > 2 KCL + 3 O2
June 29, 2010 by gary

chemistry
What is the total sample size (in grams)for a sample of ethanol (CH3CH2OH) which contains 3.39 grams of oxygen?
September 22, 2010 by Grace

science
You need 5.00 grams of AgNO3. You have a 1.25 molar solution. What volume of that solution contains 5.00 grams?
November 11, 2010 by MICHELLE

CHEM
HOW MANY GRAMS OF SALT ARE REQUIRED TO PREPARE 300 G OF 15% SALT SOLUTION? HOW MANY GRAMS OF WATER ARE NEEDED?
December 4, 2010 by Anonymous

Chemistry
How many grams of Ammonia, NH3 can be made from 250. grams of N2(g) ? ( first Balance the equation) N2 (g) + H2 (g) > NH3 (g)
March 10, 2011 by Dupree

chemistry
If there are 2.0 grams in 1 meter of copper wire, how many centimeters would be needed to provide .28 grams of copper?
September 2, 2011 by Julie

chem1151
If 2.68 grams of Copper was recovered and you started with 8.94 grams of Copper(II)chloride,then what is the percent yield of the reaction?
March 8, 2012 by linda

chemistry
If 75.0 grams of water is decomposed into hydrogen and oxygen, how many grams of oxygen should be formed?
March 12, 2012 by Anonymous

chemistry
If 75.0 grams of water is decomposed into hydrogen and oxygen, how many grams of hydrogen should be formed?
March 12, 2012 by stoi.

Chemistry
2 SO2 (g)+O2 (g)→2 SO3↑ How many grams of SO3(g) are formed if 8.45 grams of oxygen are used?
February 18, 2013 by Joe

chemistry
Calculate the mass of co2 produced when 2ch3oh mixed with o2. Given that 2ch3oh is 4o grams and o2 is 46 grams.
April 9, 2013 by Ruusa

chemistry
Calculate the mass of co2 produced when 2ch3oh mixed with o2. Given that 2ch3oh is 4o grams and o2 is 46 grams.
April 9, 2013 by Ruusa

chemistry
If 4.02 grams of a hydrate of magnesium sulfate loses 2.06 grams of water when heated, what is the formula for the hydrate
October 20, 2013 by Anonymous

chemistry
How you solve P4(s)+5O2(g)------>P4O10(g) .if 2.50 grams of phosphorus is ignited in a flask how many grams of P4O10 are formed ?
April 1, 2014 by Anonymous

Chemistry
If you have 324 grams KBr and want to produce a 1.48 M solution in water how many grams of water are needed?
April 6, 2015 by Angela

science
Julie mixes 40g (grams) of unknown X with 20g of unknown Y, how many grams of products will be produced and why?
October 26, 2015 by chanille

chemistry...
equation 2CoI3 + 3 K2S= Co2S3 + 6KI 2 moles of Cobalt (III) iodide + 3 moles of Potassium sulfide = cobalt (III) sulfide + 6moles of Potassium Iodide assuming all that can react will react, how many grams of cobalt (iii) sulfide will form when 1318.89 grams of cobalt (III) ...
October 10, 2010 by pete

Chemistry...verification
2 equation 2CoI3 + 3 K2S= Co2S3 + 6KI 2 moles of Cobalt (III) iodide + 3 moles of Potassium sulfide = cobalt (III) sulfide + 6moles of Potassium Iodide assuming all that can react will react, how many grams of cobalt (iii) sulfide will form when 1318.89 grams of cobalt (III) ...
October 10, 2010 by pete

physics
Two metal disks are taped to a meterstick. The mass of the meterstick is 460 grams. Disk 1 has a mass of 300 grams and is located at the 28 cm mark. Disk 2 has a mass of 500 grams and is located at the 64 cm mark. At what posi- tion along the meterstick should you place a ...
November 6, 2008 by Sandhya

Chemistry
How many moles of hydrogen are consumed when 40.0 L of hydrogen chloride gas are produced in the following equation? H2(g) + Cl2(g) 2 HCl(g)
November 14, 2010 by Kiesha

chemistry-stoichiometry
If 5 moles of ammonia is produced in the reaction N2 + 3 H2 2 NH3, the number of hydrogen moles consumed is ____?
December 14, 2011 by caity

Physics
(True or False) One Kilowatt-hour is equal to the energy consumed by an electric device of 1 W for 1 hour
March 27, 2012 by MM

statistics
The data below represents the amount of grams of carbohydrates in a sample serving of breakfast cereal. 10 18 24 30 19 22 24 20 18 25 20 22 19 The variance for this data would be __________ grams.
February 9, 2010 by iyra

Chemistry
A single mole of AgNo3 weighs 169.88 grams. In order to make a 1M solution, how many grams of AgNo3 would need to be dissolved in 5oomL?
November 2, 2010 by Jazz

Chemistry
how do I write out this problem? How many grams of lithium metal would be produced if 0.500 grams of magnesium was added to a solution of lithium chloride
November 30, 2010 by Tosha

chemistry
a mixture of 1.00 grams hydrogen gas and 1.00 grams helium is placed in a 1.00 L container at 27 degrees cesius. Calculate the partial pressure and total pressure
February 1, 2011 by Anonymous

chemistry
In the following reaction, how many grams of chlorine can be produced if 120 grams of titanium chloride (TiCl4) reacts with oxygen: TiCl4(g) + O2(g) TiO2(s) + Cl2(g)
February 18, 2012 by salem girl

Chemistry
When MoO3 and Zn are heated together they react 3Zn(s)+2MoO3(s) --> Mo2O3(s)+3ZnO(s) What mass of ZnO is formed when 20.0 grams of MoO3 is reacted with 10.0 grams of Zn?
March 8, 2012 by Sarah

Chemistry
25.0 grams of ammonium sulfide reacts with 25.0 grams of copper nitrate A) which reactant is limiting B) how much of the Excess reactant remains C) what is the theoratical yield
March 21, 2012 by Kira hughes

physics
How many grams of KOH are required to neutralized 300ml of 5.0 N HN03 solution? final answer nyan 84 grams kailangan nalang namen ng solution
April 10, 2012 by jhon earl

science
A single mole of AgNO3 weighs 169.88 grams. In order to make a 1M solution, how many grams of AgNO3 would need to be dissolved in 1 liter?
July 11, 2012 by yoly

AP Chemistry
The reaction of 8.7 grams of fluorine with excess chlorine produced 3.9 grams of ClF3. What percent yield of ClF3 was obtained? Answer in units of %
September 3, 2012 by Rafael

AP Chemistry
The reaction of 8.7 grams of fluorine with excess chlorine produced 3.9 grams of ClF3. What percent yield of ClF3 was obtained? Answer in units of %
September 4, 2012 by Rafael

Chemistry
A protein has a molecular weight of 98,300 grams/ mole. What will be the osmotic pressure if 0.128 grams of this protein I dissolved in 15.0 ml of water at 20 degrees calcias?
December 17, 2012 by Nad

Chemistry
Question 2 Marks: 2 How many grams of oxygen gas must react to give 174.3 grams of ZnO according to the balanced equation. 2 Zn(s) + O2(aq) --> 2 ZnO(s)
March 18, 2013 by Lindt

Chemistry
Question 2 Marks: 2 How many grams of oxygen gas must react to give 174.3 grams of ZnO according to the balanced equation. 2 Zn(s) + O2(aq) --> 2 ZnO(s)
March 18, 2013 by Lindt

Chemistry
Question 2 Marks: 2 How many grams of oxygen gas must react to give 174.3 grams of ZnO according to the balanced equation. 2 Zn(s) + O2(aq) --> 2 ZnO(s)
March 18, 2013 by Lindt

Chem.. stoichiometry
How many grams of H2 would be formed if 34 grams of carbon reacted with an unlimited amount of H2O? The reaction is: C + H2O → CO + H2 Is this equation balanced?
May 3, 2013 by Jenna Woodruff

MSJH
When heated, elemental phosphorus, P4, produces phosphine, PH3, and phosphoric acid, H3PO4. How many grams of phosphine are produced if 56 grams of P4 have reacted?
May 10, 2013 by MS

chemistry
When heated, elemental phosphorus, P4, produces phosphine, PH3, and phosphoric acid, H3PO4. How many grams of phosphine are produced if 56 grams of P4 have react
May 10, 2013 by ms

Chemistry
1. Nitric acid is produced via the following equation: 3 NO2 + H2O = 2HNO3 + NO. How many grams of NO2 are required to produce 7.5 grams of HNO3?
June 17, 2014 by Brett

chemistry
Given the balanced equation: C2H4 + 3O2 2CO2 + 2H2O How many liters of CO2 are produced when 15 liters of O2 are consumed?
July 13, 2010 by Dillon

Chemistry
If 3.0 moles of HCl are consumed in the reaction below, how many moles of FeCl3 are produced? 6HCl + Fe2O3 --> 2FeCl3 + 3H2O
January 4, 2011 by Ashley

physics
calculate the energy consumed by a computer(150 W) that is used for 2.0 hours and a laser(250 W) that is used for 10 min? Answer is 1.2 Mj
July 10, 2013 by justin

Science
Ethanol has a density of 0.789 grams per centimeter ubed. How many cubic centimeters of ethanol must be poured into a graduatedcylinder to equal 30.3 grams?
October 4, 2009 by Wanda

Chemistry
Can you determine the mass of carbon monxide that is produced when 45.6 grams of methane reacts with 73.2 grams of oxygen gas. Can you please show work in detail please. Thanks
March 25, 2010 by Stacey

Chemistry
determine the mass of carbon monxide that is produced when 45.6 grams of methane reacts with 73.2 grams of oxygen gas. Can you please show work in detail please. Thanks
March 25, 2010 by Stacey

chemistry
how many grams of AgNO3 would need to be dissolved in 1 liter, 500mL, and 100mL in order to make a 1M solution? need to show work and answers are in grams....????
July 16, 2010 by al

Chemistry
In an experiment, 3.545 grams of an unknown nonelectrolyte is dissolved in 15.0 grams of water. The extrapolated freezing point is -.56 degrees C. What is the molecular weight of the unknown material?
November 22, 2010 by Cerra

chemistry
Rachel adds together 450.9g of a 22.0% solution of potassium carbonate and 275 grams of a 5.57m solution of Barium chlorate. How many grams of precipitate does she produce?
May 22, 2011 by guadalope

Pre Calculus
Exponential growth and decay find the half life of a radioactive substance if 220 grams of the substance decays to 200 grams in 4 years?
October 25, 2011 by Josh

Chemistry
How many grams of NaCl should be added to 1 L of water to make an isotonic solution? (molecular weight of NaCl= 58.5) Can someone please explain to me why the answer is 9 grams.
January 30, 2012 by Jon

Chemistry
Hello everyone I need your help at once. How many grams of CO2 are needed to neutralize a 5 L tank of water with a pH of 11.5? my answer is around 220 grams of CO2. is that true or not?
April 13, 2014 by Ramtin

Chemistry
A butane lighter had a mass of 24.643 grams before lighting and a mass of 24.592 grams after. How many mL of CO2 were produced? Assume STP.
June 9, 2014 by Heidi

Chem Help Please Urgent!!!!!!
What is the boiling point of a solution of 0.515 grams of acenaphthene (C12H10) in 15 grams chloroform (CHCl3) given pure chloroform has a b.p. of 61.7 C and a Kbp of +3.63 C. Thanks!
September 12, 2014 by Kim

chemsistry
If one pound (454g) of hexane combusts with 185 grams of oxygen which reactant is the limiting reactant and how many grams of carbon dioxide are produced? how do I do this? How do I set it up?
March 31, 2015 by sarah

Chemistry
What is the final temperature and physical state of water when 250 grams of water at 85 degrees C is added to 80.0 grams of ice at -15 degree C? Is Tf= 109 C? Is it in the steam phase?
February 24, 2016 by Student

science
what is the karat count of gold in a bracelet that contains 15 grams of gold and 5 grams of silver
May 13, 2008 by demarco

Chemistry
N_2+3H_2-->2NH_3 How many grams of H_2 are needed to react with 3.20 grams of N_2
October 23, 2010 by Doug

chemistry
if you start with ten grams of lithium hydroxidr, how many grams of lithium bromide will be produced
April 3, 2011 by mary

chemistry
How many grams of sodium cyanide would be required to make 55 grams of sodium sulfate?
May 15, 2011 by Sabrina

Chemistry
what is my percent yield if i had 1.46 grams of copper to start with and ended with 2. 47 grams of copper?
June 14, 2011 by megan

Chemistry
If the theoretical yield of a reaction is 18.6 grams & 7.6 grams were collected the.experiment, what is the percent yield
November 5, 2012 by B

Science
How many grams of oxygen gas would be needed to react with 75 grams of hydrogen gas
January 8, 2013 by Tammy

chemistry
how many grams of copper is displaced from copper sulphate solution by adding 27 grams of aluminium
June 27, 2013 by amish

Chemistry
How many grams of NaCl are present in a 300 grams salt solution containing 9% NaCl ?
November 6, 2013 by Angelica

Algebra
A 12oz can of soda contains 40 grams of sugar. How many grams of sugar does a 70 oz bottle contain?
March 1, 2016 by Whatt

Algebra 1
Please...I really need help with this story problem. HELP! Marks pet needs to eat at least 18 grams of fiber but less than 25 grams of protein each day. Mark gives his dog Food A and Food B throughout the day. Food A has 2 grams of fiber and 3 grams of protein in each serving...
January 15, 2012 by Deb

General Chemistry
how many grams of a protein weighing 4500 grams/ mol must be present in 100 ml of water solution to a given osmotic pressure of 18 mm hg at 25 degrees celcius...( use formula of pie = Mrt
December 11, 2010 by Sarah

Nursing School
how many grams of lithium hydroxide are needed to remove 4500 grams carbon dioxide by a submarine atmospheric regulator and acts according to the following formula? 2LiOh+CO2>Li2CO3+H2O
June 21, 2011 by Kenzie

chemistry
Combustion analysis, Empirical and Molecular formulas, help!? When 2.686 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 9.224 grams of CO2 and 1.511 grams of H2O were produced. In a separate experiment, the molar mass of the compound was found to...
September 7, 2011 by Sazon

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

chem
Forty-two grams of benzoic acid is treated with concentrated nitric acid in some sulfuric acid. Forty-two grams of the major expected organic product is isolated. What is the percentage yield for this experiment? Give an equation with structural formulas for the major reaction...
August 6, 2007 by Damon

Chemistry
2HCl+Na2SO4--->2NaCl+H2O, If you start with 20 grams of hydrochloric acid, how many grams of sulfuric acid will be produced? Round to the nearest tenth. Don't forget the units
August 5, 2010 by Jarred

Chemistry
Suppose you tried to combine 42 grams of magnesium with 45 grams of oxygen. Which of the two substances would be left after the reaction? How much magnesium oxide will be formed?
October 3, 2010 by Chris

chemistry
If 45.3 grams of aluminum react with an excess of oxygen, as shown in the balanced chemical equation below, how many grams of aluminum oxide can be formed? 4Al + 3O2 2Al2O3
October 18, 2011 by Anonymous

chemistry
Calculate the residence time of sodium in millions of years if the total amount of sodium in the oceans is 1.5 x 10 to the 22 grams, and is supplied to the ocean at a rate of 2.2 x 10 to the 14 grams per year.
June 17, 2012 by Dewayne

chemistry
How many grams of phosphoric acid can be made from 200 g of dichromate and 150 grams of hypophosphorous acid? (Performed in an acidic solution, Chromium III is one of the products)
October 10, 2012 by Rae

Chemistry
How to figure out half-lives Half-live of Indium-116 is 14 seconds. How long will it take for 32 grams of this istotopw to decay to 1.0 grams. I know the answer is 70seconds but do not know how to get it!
December 12, 2012 by Anonymous

chemistry
a mixture of 100 grams of water is mixed with 100 grams of sodium nitrate at 30 degrees celcius if filtered how much salt would be left behind
June 1, 2013 by Jesica

chem 1211
P2 +3H2=2ph3 How many grams of ph3 can be formed when 37.5 grams of p2 and 83 L of h2 gas are reacted at 1 atm and 273.25 K? I really need a step by step of this problem. Thanks in advance!
October 21, 2013 by Sara

Chemistry
A compound is known to be a cesium halide, CsX. If 3.00 grams of the salt is dissolved in exactly 100.0 grams of water, the solution freezes at -0.735C. What is the chemical formula for the salt?
February 20, 2014 by Susy, PLEASE HELP

Chem 130
How many grams of magnesium chloride should be produced by the single displacement reaction between 0.578 grams of magnesium metal and an excess hydrochloric acid?
October 29, 2014 by michelle

Chemistry
Show how you would calculate the % yield of hydrogen if 40.0 grams of magnesium react with an excess of nitric acid producing 1.70 grams of hydrogen gas. Mg + 2 HNO3 ---> Mg(NO3)2 + H2
March 30, 2016 by Elizabeth

Physics
A natural gas power plant burns natural gas to produce electricity. In one second it produces 500 MJ of electrical potential energy. The power plant consumes chemical energy in order to produce electrical potential energy. --In one second does it consume 500 MJ of chemical ...
December 9, 2015 by Daniel

Chemistry
When 0.340 mol of butane, C4H10, are burned with excess oxygen giving CO2 and H2O, how many moles of oxygen are consumed?
September 9, 2011 by Aha

PHYSICS
A CHILD CONSUMED .23 KG OF JUICE WITH 115 CALORIES PER 1.15 SERVING. HOW MUCH WORK MUST PERFORMED TO REMOVE THESE CALORIES?
February 27, 2016 by HANNAH

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