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February 6, 2016

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: 21,041

Chemistry
what volume of oxygen gas measured at 25C and 760 torr is required to react with 1.0L of methane measured under the same conditions of temperature and pressure?
March 24, 2012 by Mitch

physics
A car is traveling 15 m/s when the driver sees a child standing on the road. He takes 0.8 s to react, then steps on the brakes and slows at 8.0 m/s2. How far does the car go before it stops?
September 16, 2012 by shelby

Analytical Chemistry
How many milliliters of 0.0560 M EDTA are required to react with 50.0 mL of 0.0170 M Cu^2+? With 50 mL of 0.0170 M Sc^3+? My work so far: (50mL)(0.0170mmol/mL)= 0.85 mmol Cu^2+ I'm not sure how to do the rest. Please help.
March 4, 2013 by Sam

Physics
A car is traveling 28 m/s when the driver sees a child standing on the road. He takes 0.8 s to react, then steps on the brakes and slows at 6.5 m/s2. How far does the car go before it stops?
September 25, 2013 by Jack

Physics
A car is traveling 28 m/s when the driver sees a child standing on the road. He takes 0.8 s to react, then steps on the brakes and slows at 6.5 m/s2. How far does the car go before it stops?
September 25, 2013 by Jack

College chemistry
What is the volume in milliliters of 0.1069 M Cr2O72- required to react with 252.4 mL of 0.08013 M Cl- according to the reaction below? 6 Cl-(aq) + Cr2O72-(aq) + 14 H+(aq) 3 Cl2(g) + 2 Cr3+(aq) + 7 H2O(l)
October 10, 2014 by madoo

chemistry
Consider the reaction of 14.20ml of 0.141 M H3PO4 and 0.0521 M Ba(OH)2. 2H3PO4 + 3Ba(OH)2 ->Ba3(PO4)2 + 6HOH What volume of Ba(OH)2 is required to completely react with the H3PO4?
February 17, 2015 by carolin

chemistry
Consider the reaction of 14.20ml of 0.141 M H3PO4 and 0.0521 M Ba(OH)2. 2H3PO4 + 3Ba(OH)2 ->Ba3(PO4)2 + 6HOH What volume of Ba(OH)2 is required to completely react with the H3PO4?
February 17, 2015 by carolin

chemistry
A mixture of 0.6 mole of al and 0.9 mole of cl2 are allowed to react as 2al+3cl2=2al2o3 . Calculate mass of reactant left unreacted. (al=27gmol-1 , cl=35.5gmol-1 )
September 29, 2015 by ashika

Science check
I was wondering if someone could check the problems for me? Thanks I can go back and show work if needed..this was just easier to type out. 1)An object has a mass of 615 grams and a volume of 105cm3.What is the density of the object? answer 5.86 gm/cm3 2) A player uses a ...
May 29, 2007 by Anonymous

chemistry
Not sure how to do any of this. Please help!!! A sample of the compound prepared in this experiment, weighing .1021g, is dissolved in HNO3 and diluted to a volume of 100mL. A 10mL aliquot of that solution is mixed iwth 10mL 6 M NH3. The [Cu(NH3)4 2+] in the resulting solution ...
October 7, 2010 by Kyle

chemistry
Determine the percent yield for the reaction between 98.7g of Sb2S3 and excess oxygen gas if 72.4g Sb4O6 is recovered along with an unknown amount of sulfur dioxide gas.
March 7, 2008 by kate

chemistry
How many moles of excess reactant are present when 3.50 x 10^2 mL of 0.216 M sulfuric acid reacts with 0.510 L of 0.202 M sodium hydroxide to form water and aqueous sodium sulfate?
September 19, 2009 by larry

Chem
How many moles of excess reactant when 338mL of 0.226M sulfuric acid reacts with 0.493L of 0.211M sodium hydroxide to form water and aqueous sodium sulfate?
December 3, 2009 by Lindsey

Chem
If 0.333 g Al is reacted with .501 g I2 according to the balanced chemical reaction: 2Al + 3I2 2AlI3 a) what is the limiting reagent b) how much excess reagent left over?
January 10, 2010 by A

nutrition
Pregnancy obviously results in an increased need for vitamins and minerals. Deficiency or excess of any of a number of nutrients can lead to birth defects and/or complications during pregnancy
February 23, 2010 by nancy

macroeconomics
Using the simple money multiplier {excess of reserves x (1/r)}, calculate the total change in the money supply resulting from a $1,000 initial deposit with a 10% reserve requirement.
June 15, 2010 by Tamika

chemistry
350.ml of .25M KOH is reacted with 250.ml of .30M H3PO4. Determine which is the limiting reagent, the molarity of the salt formed, and the final molarity of the reactant that was in excess.
September 26, 2011 by Ethan

Chemistry
if a student starts with 3.000 g of lead(II) carbonate for the first reaction and all other reagents are added in excess, what is the theoretical yield of lead(II) chloride solid?
October 10, 2012 by Gabby

Chemistry
The combustion of 132 g of propane, C3H8, with excess oxygen liberates 6.6x10^3 kj of heat. What is the enthalpy change for the reaction below: C3H8(g) + 5O2(g) -> 3CO2(g) + 4H2O(l)
October 14, 2012 by Kay

Chemistry
At 22C(Celsius) an excess amount of a generic metal hydroxide M(OH)2 is mixed with pure water. The resulting equilibrium solution has a pH of 10.14. What is the Ksp of the salt at 22C? Help Please
November 14, 2012 by Anonymous

chemistry
Calculate the mass of sliver chloride, AgCl, and dihydrogen monosulfide, H2S, formed when 85.6g of sliver sulfide, Ag2S, reacts with excess hydrochloric acid, HcL.
February 18, 2013 by yoyo

Chemistry
If 1.62 mold of CS2 burns with 5.65 mol of O2, how many moles of the excess reactant will still be present when the reaction is over? the chemical equation is CS2+3O2=2SO2+CO2
May 27, 2013 by Brya

chemistryhelp
how many moles of excess reactant are present when 3.20 x 10^2 mL of 0.226 M sulfuric acid reacts with 0.531 L of 0.185 M sodium hydroxide to form water and aqueous sodium sulfate
October 2, 2013 by sydney

Chemistry
50cm'3 of sulphur (iv) oxide were produced at s.t.p when some quantity of powdered sulphur were burnt in excess oxygen.state the equation for the reaction Ans S+O2g-2SO2
June 1, 2015 by Anonymous

Chemistry
What mass of lead (II) sulphate would be produced by the action of excess dilute sulpuric acid on 10 g of lead nitrate dissolved in water? I need help, at least an example.
December 9, 2015 by Jaevon

chem
3.0 mol sample of KClO3 was decomposed according to the equation 2KClO3 = 2KCl + 3 O2 How many moles of O2 are formed assuming 100% yield? is it 3 moles? I don't want to work through the details of this problem completely. Tell me what you don't understand about it. I don't ...
July 17, 2007 by jill

university
Using a wrench 0.4 m long, a force of at least 100 N is needed to turn a nut. (a) How large a torque is required? (b) How large a force is needed to turn the nut using a wrench 0.15 m long?
March 7, 2013 by waleed

Chemistry
-CORRECTION- N2 + O2 --> 2 NO change in heat (delta H)= 43.2 kcal based on the reaction, which statement is true? a) 43.2 kcal are consumed when 1.00g of O2 reacts b) 43.2 kcal are consumed when 1.00g of N2 reacts c) 43.2 kcal are consumed when 1.00g of NO is produced d) 43...
November 2, 2009 by Katie Y.

Chemistry 1
Sodium carbonate reacts with a solution of HCl solution with the evolution of gas (CO2) to yield a solution that is neutral. If 0.265 grams of sodium carbonate are required to neutralize 1.00 mL of HCl solution, what mass (in grams) of sodium carbonate will be required to ...
February 5, 2010 by Kay

Physisc(help)
At low speeds (especially in liquids rather than gases), the drag force is proportional to the speed rather than it's square, i.e., F⃗ = −C1rv⃗ , where C1 is a constant. At time t = 0, a small ball of mass m is projected into a liquid so that it initially has...
October 14, 2013 by Anonymous

physics
At low speeds (especially in liquids rather than gases), the drag force is proportional to the speed rather than it's square, i.e., F⃗ = −C1rv⃗ , where C1 is a constant. At time t = 0, a small ball of mass m is projected into a liquid so that it initially has...
October 14, 2013 by Anonymous

chemistry
calculate the number of gram of Al2S3 which can be prepared by the reaction of 20 gram of Al and 30 gram of sulpher . how much the non limiting reactant is in excess?
October 4, 2011 by sss

COMPUTER SCIENCE
Write a program that calculates and displays the total travel expenses of a businessperson on a trip. The program should have functions that ask for and return the following:  The total number of days spent on the trip  The time of departure on the first day of the trip, and...
November 25, 2012 by GUDLET

Science
A student goes fishing in the bay.He catches a few fish and dicides to put them with other fish in a small fishpond behind his house.The next day he notices that all the new fish have died. Which is the MOST LIKELY reason the fish died? A.They did not have enough space B.They ...
April 18, 2007 by hot stuff

chemisty help
for the reaction shown, compute the theoretical yield of the product in grams for each of the following initial amounts of reactants. Ti + 2F2 to make TiF4 There are 3 sub questions for this. Help me out with one, then I'll try to figure out the rest. thanks a) 4.8g Ti; 3.2gF2...
March 1, 2007 by Becky

Chemistry
A student placed 17.0 g of glucose (C_6H_{12}O_6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100 mL mark on the neck of the flask was reached. The flask was then shaken until the solution was ...
July 7, 2010 by Tiffany

maths
A factory was required to produce a crtain number of television in four days. On the first day, it produced 1/6 of the required number of television sets. On the second day, it produced another 18 sets. On the third day it produced twice as many television sets as those ...
April 13, 2012 by ssss

math
if 24 apples are needed to make 3 pies, how many apples are needed to make 2 pies
February 16, 2012 by Anonymous

Math
1. If one wishes to accumulate a 30,000-fund in 5 years, how much should he deposit now at 18% compounded quarterly? 2. If a bank offers a rate of 4.5% compounded semiannually, how much should you deposit to accumulate 50,000 in 15 years 3. Suppose that a particular ...
November 4, 2014 by Brianne

Physics
A coefficient of kinetic friction, k , is needed to stop a car in a distance D on dry pavement with the wheels locked if the car starts from speed V_0. What coefficient of kinetic friction (in terms of k ) is needed to stop this car in the same distance if it starts from an ...
February 19, 2008 by Jose

Math
omg thank you soo much for helping me and the 3 question is 4/x = 36/100 = 1.)Mrs. Neruda has 80 math student last year. This year she has 100 math students. What percent shows the ratio between the number of students last year and the number of students this year? #2)A can of...
January 3, 2007 by Anonymous

his
discuss in details the truman doctrine, the berlin airlift, and the marshall plan confrontation between US and Soviet union during coldwar. what evetns began each crisis. How did the other side react and what were the outcomes of each?
July 26, 2010 by ami

chemistry
22.0 ammonium chloride decomposes to form hydrochloric acid, and ammonia. at the conclusion of the reaction, the scientist collects 10.24L of ammounia measured at 52 degrees Celsuis and 105.3 kPa. What was the percent yield of the reaction? Write the equation. NH4Cl ==> NH3...
February 20, 2007 by betty

maths
3. An elastic string hangs from a nail N. When as mass of m grams is attached to its lower end, the elastic is stretched so that its lower length is x cm, as shown in the diagram: N The table shows result of the two experiments: Length (x cm) 43 49 Mass (m grams) 50 80 m It is...
February 9, 2012 by puk

Chemistry
1. How many moles of ammonia NH3 are produced when 0.45 moles of nitrogen N2 reacts? N2 + 3H2 yields 2NH3 2. How many mililiters of water will be produced when 2.05 g of hydrogen reacts? The density of water is 1.00 g/mL ? 2H2 + O2 yields 2H2O 3. What is the limiting reactant ...
March 18, 2015 by Melanie

Physics (simple electronics)
The electronic flash attachment for a camera contains a capacitor for storing the energy used to produce the flash. In one such unit, the potential difference between the plates of a 775 F capacitor is 330 V. (a) Determine the energy that is used to produce the flash in this ...
February 24, 2011 by Mike

Chemistry
Gravimetric analysis does not always involve a precipitate. Consider the following problem. A mixture of calcium carbonate and calium oxide has a mass of 8.35 grams. When heated strongly, the CaCO3 in the sample decomposes into solid CaO and carbon dioxide gas. The calcium ...
December 6, 2010 by Josh

Chemistry
Gravimetric analysis does not always involve a precipitate. Consider the following problem. A mixture of calcium carbonate and calium oxide has a mass of 8.35 grams. When heated strongly, the CaCO3 in the sample decomposes into solid CaO and carbon dioxide gas. The calcium ...
December 7, 2010 by Josh

Chemistry
Gravimetric analysis does not always involve a precipitate. Consider the following problem. A mixture of calcium carbonate and calium oxide has a mass of 8.35 grams. When heated strongly, the CaCO3 in the sample decomposes into solid CaO and carbon dioxide gas. The calcium ...
December 8, 2010 by Josh

Chemistry
Gravimetric analysis does not always involve a precipitate. Consider the following problem. A mixture of calcium carbonate and calium oxide has a mass of 8.35 grams. When heated strongly, the CaCO3 in the sample decomposes into solid CaO and carbon dioxide gas. The calcium ...
December 10, 2010 by Josh

Math
Olivia uses 3/8 cup brown rice flour to make healthy dog treats. The expression 3/8 t represents how much flour is needed to make t treats. How much brown rice flour is needed to make 10 1/2 treats?
August 26, 2014 by Lauryn

Chemistry
Magnesium nitride can be produced by passing nitrogen gas over magnesium metal. 3Mg+N2 --> Mg3N2 IF 28.8g of Mg are mixed with 21g of N2 and allowed to react, which is the limiting reagent?
July 24, 2008 by Amber

social studies
A)How did corruption in city government grow? B) How did people react to this corruption? PLEASE HELP! i have a test tommorrow and this is our essay question and i cant find it in the book!!!
January 21, 2013 by MS. SUE PLEASE HELP!

math
0.224g sample that contained only bacl2 and kbr required 19.7ml of 0.1M agn03 to react the end point. Calculate the percent of each compound present in the sample
December 21, 2013 by Fai

Chemistry
If 5.4 moles of methane react with 3.5 moles of oxygen gas, how much carbon dioxide will be produced? Use the following equation: CH4 + 2O2 = CO2 + 2H20
August 7, 2014 by Bellkis

CGCC
What mass of manganese(II) chloride must react with sulfuric acid to release 54.0mL of hydrogen chloride gas at STP? MnCl2(s)+H2SO4(aq)MnSO4(aq)+2HCl(g)
April 5, 2015 by Rachel

chemistry
The enthalpy of combustion of carbon to carbon dioxide is -394 kJ according to the equation: C (s) + O2 (g) --> CO2 (g) How many kJ of heat are released when 24.0 g of carbon are burned in an excess of oxygen
June 11, 2011 by lo

Chemistry
Fe3O4 reacts with CO according to the equation Fe3O4 + 4CO => 4CO2 + 3Fe If 478.9 g Fe3O4 is reacted with excess CO, what mass of CO2 will be produced?
July 9, 2013 by Anonymous

chemistry
Phosphorus reacts with water to form hydrochloric acid and phosphoric acid. how many moles of acid are formed when starting with 4.5 g of PCl5 and excess H2o?
April 9, 2015 by Michael

CHEM HELP
what is the theoretical mole ratio- NaCl to NaHCO3 How do you determine the percentage error of an experimental mole ratio It would be easier for us to help you if we had the entire problem instead of just parts of it. However, from the standpoint of Na, the mole ratio of NaCl...
January 2, 2007 by CHEMISTRY HELP

CHEM HELP ASAP
I figured all the parts of the problem except for the last one. Can you tell me what to do? In the preparation of a mustard solution, an individual package of mustard was emptied into a beaker and the mass was determined to be 3.809 grams. The mustard was then dissolved in 50....
October 10, 2012 by Kelli

CHEM HELP ASAP
I figured all the parts of the problem except for the last one. Can you tell me what to do? In the preparation of a mustard solution, an individual package of mustard was emptied into a beaker and the mass was determined to be 3.809 grams. The mustard was then dissolved in 50....
October 10, 2012 by Kelli

physics
11. A major-league pitcher can throw a baseball in excess of 42.4 m/s. If a ball is thrown horizontally at this speed and acts like a projectile, how much will it drop by the time it reaches the catcher who is 17.0 m away from the point of release?
June 27, 2013 by vector

sci
Explain the four factors that produce changes in population size.
December 19, 2007 by Amber

SCI 275
Explain the factors that produce changes in population size.
January 10, 2008 by dawn

Math
Explain how you can transform the grap of f(x)= logx to produce g(x)=log(10nx), for any n>0.
June 13, 2009 by Halle

Health Care
do eating tomatoes cause kidney problems? and do they produce acid?
July 22, 2009 by Elina

Physics
14. Which of the following wavelengths will produce standing waves on a string that is 3.5 m long? a. 1.75 m b. 3.5 m c. 5.0 m d. 7.0 m
October 28, 2009 by Sean

chemistry
How much heat does calcium oxide produce when dissolved in water?
May 17, 2010 by Ann

science
how much heat does calcium oxide produce when dissolved in water?
May 17, 2010 by Ann

chemistry
how many moles of LiF would be required to produce a 2.5 M solution with volume of 1.5 M?
August 15, 2010 by kirari

sunshine math
use each of these digits one time: 2, 4, 6, and 8, to produce the answer "14"
September 26, 2010 by emile

physics
in what direction should a force be applied to produce maximum torque.?
October 17, 2010 by claudia

Science
Why would E. coli not produce acid during the fermentation of glucose?
November 17, 2010 by Anonymous

Chemistry
What kind of reaction is it when the reactants produce carbon dioxide and water
November 26, 2010 by Pedro

Biology
Give an example of a tandem cluster and describe which protein it will produce.
December 1, 2010 by Ari

Human Physiology
How do low plasma protein levels produce edema?
January 9, 2011 by Elise

chemistry
How many moles of H2SO4 are required to produce 100kg of CaSO4 from CaCO3
January 31, 2011 by donabel

chemistry
Could you produce a cell that contains a 1.0M solution of Fe2+ and Fe3+ ions?
March 5, 2011 by Wina

Marks
What shall this 5/90 lotto produce from the last two result. Winning -- Machine 21.20.73.78.18--89.62.83.30.37 68.4. 22. 5 .59--76.25.27.28.44
June 17, 2011 by Matte

ECON
Which of the following is least likely to affect an economy's capacity to produce?
August 16, 2011 by Anonymous

Chemistry
Why does only one of these ions (Co, Cu, or Ni) produce a positive flame test?
November 17, 2011 by Taemin

electricity
how many volts does a nickel cadmium produce? VOLTAGE FOR ONE CELL
January 19, 2012 by LISA

chemistry
if we have 1 galon of C8H18 hom many galons of water will be produce?
March 1, 2012 by Anonymous

Chemistry
What is the equationfor this?: Sulfur reacts with oxygen to produce sufur trioxide
April 16, 2012 by Taylor

Chemistry
What minimum amount of 1.55 M \rm HCl is necessary to produce 26.5 L of \rm H_2 at STP?
May 16, 2012 by Tj

SCIENCE
Explain the four factors that produce changes in population size.
July 12, 2012 by TIA

science
if a DNA virus infects a cell, why must it produce RNA?
December 2, 2012 by robbie

chemistry PLEASE HELP
How many milligrams of sodium azide will produce 8.35 Liters of N2 at STP???
March 7, 2013 by Liv

Chemistry
Help? How many moles of LiF would be required to produce a 2.5 M solution with a volume of 10.5 L?
August 18, 2013 by Victoria

SCIENCE
2o L of N AND 100l OF h REACTED TO PRODUCE NH3 WHAT IS DECREASE IN VOLUME OF MIXTURE
May 22, 2014 by AYESHA

CHEMISTRY
If 2.5 * 10^-2 g of Fe(NO3)3 added to 100mL of 1.0 * 10^-4 M NaOH solution , will it produce precipitate ? thank you
July 7, 2014 by MAD

Chemistry
Suggest why calcium compound produce a coloured flame but magnesium do not?
September 2, 2014 by Syam

Chemistry
Give a acid-base pairs which produce Na2CO3 as a salt
October 8, 2014 by Ruth

Chemistry
How many moles of LiF would be required to produce a 12.0 M solution with a volume of 10.5 L?
November 10, 2014 by Alek

english
Please correct punctuation and spelling errors. Thank you! We have an appointment with Representative Howard at 1:30 p.m. on Tuesday, August 1, in Room 209 at the Capitol in Nashville. Our appointment will precede the General Committee meeting in room 7 of the Capitol. ...
February 27, 2011 by April

economics
If the reserve requirement is 20% and a bank doesn't have excess reserves, why would a $100 deposit lead to a greater than $100 increase in the money supply. answer posted above.
May 6, 2007 by Carter

chem
What is the actual amount of magnesium oxide produced when excess carbon dioxide reacts with 42.8 g of magnesium metal? The percent yield of MgO(s)for this reaction is 81.7%. 2Mg(s) . CO2(g) y 2MgO(s) . C(s)
June 1, 2008 by Anonymous

physics
A major-league pitcher can throw a ball in excess of 44.4 m/s. If a ball is thrown horizontally at this speed, how much will it drop by the time it reaches a catcher who is 17.0 m away from the point of release?
February 10, 2011 by frost

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