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August 20, 2014

Search: 12. How many grams of CO are needed to react with an excess of Fe2O3 to produce 209.7 g Fe?

Number of results: 17,854

chemistry
How many mol of Oxygen are in 45.9 grams of CO2?
March 19, 2011 by Anonymous

chemistry
How many grams of Na2CO3 are required to Na2S2O3
April 4, 2011 by Rickia

chemistry
How many grams of Na2CO3 are required to Na2S2O3
April 4, 2011 by Rickia

chemistry
How many grams of O2 are required to burn 13.0g of acetylene?
April 25, 2011 by Kelsey

chemistry
how many grams of aluminum are in 25.0 ml of a 14%(w/v) solution of Al2O3?
April 25, 2011 by unk

stoichimetry
how many liters of NH3 can be produced from 23.1 grams of H2 ?
April 26, 2011 by Anonymous

Chemistry
how many grams are in 12.5 moles of chlorine (gas)?
July 12, 2011 by Help

Math
how do you convert 1000 milligrams to grams ?
September 5, 2011 by Janae

chemistry
how many grams of O2 may be produced from 50g of KClO3?
September 13, 2011 by Karen

Grams
Can you give me an examples of a 5.6 gram object?
September 14, 2011 by HM

chem
how many molecules will be in 275 grams of c2h6
November 14, 2011 by mandy

chemistry
calculate 5.7 grams PbCl2= ions Cl-1
November 14, 2011 by nina

Chemistry
how much sodium is in 1.80 grams of Na3PO4
November 20, 2011 by Anonymous

chemistry
How many grams of NH3 can be made from 375g of N2?
December 5, 2011 by sara

Chemistry
How many moles are in 12.0 grams of Potassium Sulfide?
February 19, 2012 by Alison

Chemistry
How do you convert Ounces to Grams longhand?
March 22, 2012 by Lee

to ms.sue
each paper clip weighs 30 grams
May 10, 2012 by Celest

chemistry
if 14.7g of na reacts with 7.9g og br how many grams of nabr are found
September 3, 2012 by Anna

Science, Chemistry
What is the volume of 75.65 grams of zinc
September 6, 2012 by Hannah

biology
what is the mass in grams of 1.03 kg 1105g and 1075000mg
September 12, 2012 by angie

chemistry
How many grams of Kl are required to prepare 500 mL of 0.04 M Kl?
September 25, 2012 by Erin

math
How many grams of a drug are contained in 1L of a 30% solution?
September 28, 2012 by Anonymous

Chemistry
what is the mass in grams of 1.32 x 10^20 uranium atoms
October 16, 2012 by Kid

chemistry
1. How many grams of NaCl are present in 15 mL of a 2.0% solution?
October 19, 2012 by alexa

math
If the density of 1.77 grams of gold is 19.3 g/mL, what is the volume
November 7, 2012 by shana

chemistry
How many grams of solute are in 2.l L of 3.7Moles of Al(NO3)3
November 17, 2012 by Anonymous

chemistry
how to convert 2.80cm into grams?
January 20, 2013 by Anonymous

chemistry
How to convert centimeters into grams
March 2, 2013 by Anonymous

chemistry
how many grams of oxygen are in 175 g of C5H10O5
April 16, 2013 by anna

Chemistry
How many grams of Na2O are produced when 62.5g of Na reacts?
April 16, 2013 by Trena Fuller

chemistry
how many moles of nh3 are produced from 16 grams of n2 ?
May 21, 2013 by jojo

Math
Subtract 750 grams from 3 kilograms
May 29, 2013 by Jane

Chemistry
How many grams of NaCl are produced from 6 moles of Na?
June 18, 2013 by Halie

chemistry
If you have 13.0g of Na, how many grams of O2 are required for the reaction?
September 17, 2013 by deven

chemistry
Covert 22.3 grams of C6H12O6 to molecules
October 16, 2013 by Cindy

Chem
How many grams of MG in 1.5 g of chloride ions in MGCL2
February 7, 2014 by Belal

chemistry
How many grams are there in 2.5 moles of CuSO4.5H2O?
August 11, 2014 by Shane

science - need help
a strip of silver does not react with any of the solutions tested what must be true about silver the solutions are: lead acetate zince sulfate and copper sulfate
November 21, 2007 by sam

chemistry
when we are synthesis n-butyl bromide what impurities we can expect in the crude product?and how would these impurities react with concentrated sulfuric acid?and also how we can make t-butyl bromide?
March 13, 2011 by sashika

Chemistry
FeCl3(aq) + K2S(aq) Fe2S3(aq) + KCl(aq) Consider the unbalanced equation above. What is the maximum mass of Fe2S3 that can be produced when 54.5 mL of 0.480 M FeCl3 and 98.5 mL of 0.420 M K2S react?
October 7, 2013 by Connor

Chemistry
Urea (NH2)2CO is dissolved in 100.0 g of water. The solution freezes at -0.085 degrees C. how many grams of urea were dissolved to make this solution. delta T = Kf*molality Plug in 0.085 for delta T, I assume you know Kf for water, calculate molality. Then molality x kg ...
February 11, 2008 by Lauren

chemistry
Acids and bases react with one another to form compounds called ______? A. salts B. ions C. mixtures D. salts, ions, and mixtures
September 14, 2010 by junior

Chemistry
Acids and bases react with one another to form compounds called ______? A. salts B. ions C. mixtures D. salts, ions, and mixtures
September 16, 2010 by Jason

chemistry
Can you please explain the buffer system used in buffered aspirin? For example, what is the chemical formula of the buffer that is used? How does it react with the aspirin?
June 14, 2011 by Jessica

Chemistry
6g of metal M react completely with 23.66g of chlorine to form 29.66g of the metallic chloride. Find the empirical formula of the metallic chloride. (M = 27, Cl = 35.5)
August 19, 2013 by Adigun

chemistry
50cm/3 ofsulphur(iv) oxide were produced at stp when some quality of powdered sulpur were burnt in excess oxygen. (1) which equation is suitable.(2) what volume of oxygen was used up during the reaction.(3) which of the gas law is applicable. State the law.
February 17, 2012 by Promise

physics
An oil-drop, that has a mass of 3.5 10-15 kg and an excess of 7 electrons, is located between horizontal parallel plates. The plates are separated by a distance of 2.5 cm and have and potential diffeDetermine the magnitude and direction of the acceleration on the charged ...
August 14, 2013 by sam

biology
What is needed when experimenting on humans
December 16, 2007 by mike

math help needed
if 2ax-5x=2, then what is x equivqlent to?
January 10, 2009 by Anonymous

Math
How many matchsticks are needed for a 6 6 design? A) 42 B) 72 C) 40 D) 84 C)40
July 12, 2011 by candy

Math
rename or simplify as needed 11 1/4 - 5 8/9
February 2, 2013 by JR

math
4 5/8 + 9 3/5 = rename or simplify as needed
February 2, 2013 by JR

maths-urgently needed
if p(x) = px^7 + qx^3 + rx - 5 where p , q , r are constants , if p(-7) = 7 then p(7) = ?
February 9, 2013 by Anonymous

maths-urgently needed
If a+b+c=0 then prove that a^4+b^4+c^4=2(a^2b^2+b^2c^2+c^2a^2)
February 17, 2013 by Anonymous

socials 11
why was totalitarian needed for ww2?
July 11, 2013 by alyssa

geometry
1. What is the lateral surface area of a square pyramid with side length 11.2 cm and slant height 20 cm? 224 cm2 448 cm2 896 cm2 2508.8 cm2 2. What is the lateral surface area of a cone with radius 19 cm and slant height 11 cm? 19 cm2 30 cm2 200 cm2 209 cm2 3. What is the ...
April 18, 2012 by lilman

chemistry
one method for favoring the formation of an ester is to add excess acetic acid. sugest another method,involving the right-hand side of the equation,that will favor the formation of the ester.
November 11, 2009 by priya

chemistry
one method for favoring the formation of an ester is to add excess acetic acid. sugest another method,involving the right-hand side of the equation,that will favor the formation of the ester.
November 11, 2009 by priya

Chemistry
If you heat a mixture of Zn and HCl,and heat them together until all liguid has evaporated because excess HCl will be given off. What substance is left in the dish after the liquid has evaporated.
April 12, 2010 by Edina

math
How many hours of jogging at 5 1/2mi/h would be needed for a 200 pound person to lose 5 pounds and it takes 3500 cal for one pound 740 cal/h for jogging 5 1/2 mi/h Please post your answer, and we'll be glad to critique it. 750x3500 740x3500=2590 No, not right. If it takes ...
March 16, 2007 by patti help

Chemistry
suppose that you have a n unlimited supply of copper II chloride to react with iron. how manyt moles of copper would be produced by reacting 34.0g of iron with the copperII chloride solution?
December 10, 2008 by Lily

Chemistry
Water will react most completely as an acid with A. SO3^-2 B. H2BO3- C. C6H5O- D. CH3COO- Why isn't the answer A, since H2O + SO3^-2 <-> HSO3- + OH- so H2O and HSO3- are the conjugate acids.
May 4, 2010 by sh

chemistry 105
Consider the following reaction: Li2S(aq)+Co(NO3)2(aq)-->2LiNO3(aq)+CoS(s) What volume of 0.150 M Li2S solution is required to completely react with 125 mL of 0.150 M Co(NO3)2?
October 10, 2011 by julie

Chemistry (balancing eq)
I need to write a formula where PbNa reacts with water. 2PbNa + 2 H20 = 2 NaOh + H2 +Pb It says in the question that lead doesn't react with water, but Na does. Did I write the formula correctly?
October 1, 2013 by Kristine

chemistry pls help me asap
2.08g of metal Y react with 0.96g of oxygen to form a metal oxide.The empirical formula of the metal oxide is Y2O3.What is the relative atomic mass of metal Y.
May 15, 2014 by mandy

Chemistry
OMG, I did the other fifteen questions of my homework but I'm stuck on these. #1: Which has the higher average kinetic energy, a tub full of 50'C water, or a small cup of 52'C water. Why? Which has more total kinetic energy, the tub or the cup? Why? #2: Lithium, sodium, and ...
September 24, 2008 by W I C K E D

Ethics
1. Which of the following is a key Aristotelian idea that describes a midpoint between extremes of excess and deficiency? A. Eudaimonia B. The golden mean C. The middle path D. Care is it B 2. Which of the following is a virtue commonly emphasized in criminal justice ...
March 16, 2014 by Any

chem
AgNO3 + NaCl produces AgCl + NaNo3 how much AgCl is produced when 3.10g of AgNO3 and .600g of NaCl react?
December 8, 2010 by alex

Chemistry
If you react 2.0 g AgNO3 and 2.5 g Na2SO4, what is the percent yield if the actual yield is 1.6 g Ag2SO4? 2AgNO3 + Na2SO4 → Ag2SO4 + 2NaNO3
January 24, 2012 by Ana

Chemistry
If I react a phosphorus ylide with trans-cinnamaldehyde, what would the ratio of trans-trans to cis-trans isomer would I likely get?
March 30, 2012 by Sam

Chemistry(Please help)
The common laboratory solvent diethyl ether (ether) is often used to purify substances dissolved in it. The vapor pressure of diethyl ether , CH3CH2OCH2CH3, is 463.57 mm Hg at 25oC. In a laboratory experiment, students synthesized a new compound and found that when 27.18 grams...
February 19, 2012 by Hannah

math
Some people believe that calculators have eliminated the need to learn the skills required to perform mathematical operations by hand. State your position on this belief, and then support your position with real-life stories or examples I will be happy to critique your ...
March 4, 2007 by carmen

Chemistry
In fertilizer manufacturing the cimpounds below are mixed together to form a composite fertilizer. My question is: Is there a reaction between SOLID ammonium phosphate, potassium chloride, ammonium nitrate, and superphosphate? (or any combination? or will they react if all are...
March 8, 2012 by Namie

stoiciometry (chemistry)
calculate the theoretical yield of Cu when 53.2g Cu2S react with oxygen. (balanced equation is CU2S+02>2Cu+S02) Please help me figure this homework out. I just dnt get how to get the theoretical yeild. I want to know to be able to do the rest right. Thanks much!
April 15, 2013 by lila

Chemistry
A 3.23 gram sample of a sodium bicarbonate mixture was reacted with excess acid. 48.52 mL of the evolved gas was collected of the water at .930 atm. and 23.0 degrees C. What is the percentage of sodium bicarbonate in the original mixture?
April 23, 2011 by Adele

accounting 2
Peason began 20xx with 30,000 $1 common shares issued and outstanding.paid in captial in excess of par was $25,000 and retained earnings were $175,000 net income for 20xx was $22,000.
May 20, 2013 by charlene

Chemistry
How many liters of Cl2 has at a pressure of .950 atm and a temperature of 298K will be collected from the reaction of 25 mL of a .100 M aqueous solution of KMnO4 and an excess of HCI? KMnO4+HCI->MnCl2+Cl2+H2)+KCl
July 20, 2013 by Sara

Physics
A metal sphere has a charge of -6 C. How many excess electrons are there on the sphere? 4x10^-13 10x10^13 4x10^13 10x10^-13 I'm stuck between A or D...
October 19, 2012 by I'm bad at physics

engineering
In the process of electrolysis, electrical power is used to separate water into oxygen and hydrogen molecules via the reaction: H2O --> H2 + O2 This is very much like running a hydrogen fuel cell in reverse. We assume that only the activation potential for the hydrogen ...
December 19, 2013 by Timothy Boons

physics
In the process of electrolysis, electrical power is used to separate water into oxygen and hydrogen molecules via the reaction: H2O --> H2 + O2 This is very much like running a hydrogen fuel cell in reverse. We assume that only the activation potential for the hydrogen ...
December 20, 2013 by Arnold Smith

Chemistry
2MnO4-(aq) +5 H2O2 (aq) + 6H+(aq) -> 5 O2(g) + 2 (Mn2+(aq) = 8H2O (l) If a 25.00 ml sample of hydro peroxide required 25.25 ml of .353 M KMNo4 solution to react with all the hydrogen perozide what was the molarity of the hydrogen peroxide solution?
June 7, 2011 by Vinny

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

Chem
A particular coal contains 2.5% sulfur by mass. When this coal is burned, the sulfur is converted into sulfur dioxide gas. The sulfur dioxide reacts with calcium oxide to form solid calcium sulfite. If the coal is burned in a power plant that uses 1800 tons of coal per day, ...
September 17, 2012 by Ezra

Music
Ok, so this question isn't exactly for school, but i needed help for it, and thought you guys might be able to help me out. Ok, so i am rewriting/rewording lyrics to the song 'Come back to Texas' by Bowling for Soup. (Search the song on Youtube if it will help.) Im rewriting ...
December 1, 2008 by Twila

Algebra
insert grouping symbols in the expression 2x3 to the 3rd power plus 4 to produce the indicated values. 4374 279,936
September 12, 2007 by Anonymous

science
Why do some countries produce more carbon dioxide than others? ------------------------------------- i know it has something to do with the way a country does things, but i'm not sure how to describe my idea.
September 29, 2008 by cici

Earth Science-9 help!!!
does monroe county produce any of these minerals??? talc zinc garnet gypsum lead magnetite halite titalium. plz help me...
November 5, 2008 by Pari

government
Why cant the president sit down with a group of able and intelligent advisers and produce an effective program to address the problems facing the nation?
November 22, 2008 by et

Biology
What is the name of organisms that EXCLUSIVELY use cellular respiration to break down glucose to produce ATP. What are three examples of the cells that can do this?
April 4, 2009 by Amy

Biology
At what time (be very specific) is the consumption of Thalidomide dangerous to pregnant women? What exactly goes wrong to produce phocomelia children?
May 7, 2009 by Jason

GEO/101
Approximately how many tons of lignite would be required to produce the amount of heat generated by one ton of anthracite coal?
January 18, 2010 by ggift

science biology
1. What is the name given to the type of organisms that can use Photosynthesis to produce glucose? In addition, provide three specific examples.
August 3, 2010 by maria

Chemistry
Between which two orbits of the Bohr hydrogen atom must an electron fall to produce light of wavelength 434.2nm?
September 28, 2010 by Christina

Chemistry
What is the minimum amount of 5.0M H2So4 necessary to produce 24.1g of H2(g) according to the following reaction? 2Al(s) +3H2So4(aq) produces Al2(So4)3(aq) + 3H2(g)
October 2, 2010 by Anonymous

Chemistry
How many hours will it take to produce 78.0 g of Al metal by the reduction of Al3+ in an electrolytic cell with a current of 2.00 Amperes? [Enter only a number for your answer.]
November 15, 2010 by Diana

physics
How long would a 150 W lightbulb have to glow to produce the same amount of energy expended by Georgie? Answer in units of s.
February 23, 2011 by pete

chem
an average airbag contains 132 g of NaN3. How many liters of nitrogen would produce on a warm day at 85 degrees F and a pressure of 1atm?
April 26, 2011 by tracy

chemistry
which substance , glucosa or sodium chloride, will produce more freezing point depreccion whent added to equal amounts of water
May 17, 2011 by lola

Chemistry
Give the following reaction,find the mass of oxygen required to produce 13grams of CO2; C3H8+5O2--->3CO2 + 4H2O
June 15, 2011 by Charlie

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