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April 28, 2015

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: 19,723

chemistry
Zn(s) + 2AgNO3(aq) = 2Ag(s) + Zn(NO3)2 (aq) It would require_____g of zinc to produce 5.40g of silver.
June 12, 2013 by kris

Microeconomics
Why do "price-maker" firms never want to produce in the inelastic part of the demand curve??
October 25, 2013 by Morgan

physical science
How many kilocalories of heat does the operation of a 1285 W hair dryer produce each second?
March 31, 2014 by Anonymous

Chemistry
If you are given a photoelctronic spectrum with just the peaks, how do you identify the element that would produce it?
September 30, 2014 by Anonymous

life science
Explanation of why the process of mitosis and meiosis are both important to a living organism. When would an organism need to undergo the process of mitosis? When would an organism need to undergo the process of meiosis? What would happen if meiosis did not occur I will gladly...
August 10, 2007 by q

Statistics
Please I Need Help With This Question Showing All Steps...Thank You :) The average number of units that the factory workers at Benzo company assemble per week is μ = 45 with a standard deviation of σ = 12. Assume that the distribution of units assembled is normal. If...
August 2, 2011 by Anonymous

Easy English
Is the wird snapped a verb? Yes. It is the past tense and past participle of the verb "snap". How Does jim react when makes it back to the raft?
November 8, 2006 by Gina

Science
Like I need to make a skit and part of that skit is someone dieing of blood loss. How does someone react right before they die?
September 25, 2007 by Anonymous

chemistry
Determine the mass of carbon monoxide that is produced when 45.6 g of methane, ch4 react with 73.2 g of oxygen gas, o2. The products are carbon monoxide and water vapour
July 27, 2010 by Kelsey

chemistry
Consider the following balanced reaction. What mass (in g) of CO2 can be formed from 743 mg of O2? Assume that there is excess C3H7SH present. C3H7SH (l) + 6 O2 (g) ---> 3 CO2 (g) + SO2 (g) + 4 H20 (g)
March 1, 2010 by candace

AP Chemistry
a 5.15g sample of a hydrocarbon is burned in oxygen, producing 15.6g of carbon dioxide and 8.45g of water. Assuming an excess of oxygen, what is the empirical formula of the hydrocarbon?
September 13, 2011 by Ariday

chemistry
A compound of Fe and Cl is soluble in water. An excess of AgNO3 was added tp precipitate the Cl- as AgCl. if a 1.540g sample of the compund gave 4.082g AgCl, What is the formula of the compound?
November 19, 2012 by evelyn

Chemistry
15. 120 g of sulfuric acid are added to 230.0 g of barium peroxide. Which reactant is in excess and by how much? How much barium sulfate is precipitated in this reaction???? HELP please
December 13, 2012 by John

difficult chemistry
Calculate the molarity of thiosulfate solution if 0.400mg of Kl03 required 100ml of the thiosulfate solution provided that excess kl and hcl were added. Who helps me
January 12, 2013 by Fai

Chemistry
how many moles of sodium oxide are produced when 3.9 moles of of sodium combine with excess oxygen
January 29, 2013 by Chris

Chemistry
suppose you added 26.0 ml of 0.01 M NaOH to the solution, what is the molarity of excess NaOH in the mixture? what is the ph of this solution?
November 19, 2014 by Mollie

chem
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? My work: 454 g C6H14 * 1 mol C6H14/86.18 g C6H14 * 6 mol CO2/ 1 mol C6H14 * 44 g C02/ 1 mol CO2= 1390.7 g/ CO2 185 g O2 * ...
April 1, 2015 by Sarah

Chemistry
a) Photosynthesis is estimated to produce 360.0 g (dry weight) of plant matter per square meter, 50% of which is carbon. Calculate the total number of grams of carbon "fixed" each year by 1000 square meters.
 b) The photosynthetic reaction can be represented as:
...
April 7, 2010 by Laura

chemistry
one moles of a compound containing only carbon, hydrogen, and nitrogen was burned in the presence of excess oxygen to give 264g of CO2, 63 g of H20, and 46 g of NO2. Calculate the molecular formula of the compound.
September 16, 2007 by julie

chemistry
Consider the following reaction: 2H2S (g) + 3O2 (g) --> 2SO2 (g) + 2H2O (g) If O2 was the excess reagent, 1.3 moles of H2S were consumed, and 18.7 g of wat were collected after the reaction has gone to completion, what is the percent yield of the equation?
December 11, 2011 by :(

chemistry
treatment of a 0.400g sample of impure potassium chloride with an excess of AgNO3 resulted in the formation of 0.733g of AgCl. calculate the percentage of KCl in the sample. show balanced equations in support of your answer
August 15, 2012 by Andrea

physics
The power needed to accelerate a projectile from rest to its launch speed v in a time t is 48.0 W. How much power is needed to accelerate the same projectile from rest to a launch speed of 2v in a time of 1/2t
October 10, 2011 by Acceleration

Physics - calorie
This was my problem: 4.) The specific heat capacity of copper is 0.092 cal/g*oC. Show that the amount of heat needed to raise the temperature of a 10-g piece of copper from 0oC to 100oC is 92 cal. How does this compare with the heat needed to raise the temperature for the same...
September 20, 2009 by Mary

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
Here is the full lab: Lab: Electrolytic Cells Purpose: The purpose of this experiment is to test the method of stoichiometry in cells. Materials: Balance Steel can Tin electrode Power Source Wire lead (x2) tin(II) chloride solution (3.25 M) Timer Large beaker Procedure: Take ...
April 18, 2008 by Rendier

Chemistry
Thallium (I) iodate is only slightly soluble in water. Its Ksp at 25C is 3.07 x 10-6. Estimate the solubility of thallium iodate in units of grams per 100.0 ml of water. TlIO3(s) <==> Tl^+ + IO3^- Let x = molar solubility of TlIO3. The x is molar solubility of Tl^+ and ...
May 2, 2007 by Jason

Chemistry
N2 (g) + 3 CL2 (g) ---> 2 NCL3 (g) delta H = + 230 kj ----- a) What mass of N2 would absorb 96.5 kj of heat as it reacts? b) What volume of Cl2 at STP would be required to react with the N2 in part (a)?
June 3, 2008 by Soba

chemistry
Determine the theoretical yield of C when each of the following amounts of A and B are allowed to react in the generic reaction: A+2B-->3C 1) 1mol A; 1 mole B 2) 1mole A; 3 mole B 3) 2mole A; 2 mole B 4) 32mole A; 68 mole B
November 10, 2010 by rachel

Chemistry
You react ammonia and oxygen, and at the end of the experiment you find that you produced 20.7 g of water and have 8.52 g of ammonia left over. Determine the mass of oxygen reacted.
December 8, 2010 by Adog

chemistry
Use the following balanced equation. 3Sr(OH)2 + 2H3PO4 --> 6H20 + Sr3(PO4)2 20 mL of H3PO4 is required to react with 40 mL of a 0.15 M Sr(OH)2 solution. What is the molarity of the H3PO4 solution?
June 20, 2011 by Brea

chemistry 101
given the reaction: 2mg + o2-----> 2mgo . when 4.32g of oxygen react with magnesium 327kj of energy is produced. the heat of reaction for 1 mole of oxygen is???
July 9, 2011 by ABCD

College Chemistry
C6H6(l) + Cl2(g) --> C6Cl6(s) + HCl(g) Consider the unbalanced equation above. What is the maximum mass of each of the products that can be formed when 72.5 g of C6H6 and 49.0 g Cl2 react?
February 22, 2012 by Jade

chemistry
What volume of 0.714 M K3PO4 is required to react with 27 mL of 0.97 M MgCl2 according to the equation 2 K3PO4 + 3 MgCl2 → Mg3(PO4)2 + 6 KCl Answer in units of mL
October 28, 2013 by Anonymous

Chemistry
If 16.3 kilograms of Al2O3(s), 60.4 kilograms of NaOH(l), and 60.4 kilograms of HF(g) react completely, how many kilograms of cryolite will be produced?
October 23, 2011 by Harley

biology
Do living tissues react more like water or more like a buffer?
January 25, 2012 by Anonymous

science
If 14.0 kilograms of Al2O3(s), 57.4 kilograms of NaOh(l), and 57.4 kilograms of HF(g) react completely, how many kilograms of cryolite will be produced?
March 6, 2012 by Chase

Chemistry
If 14.0 kilograms of Al2O3(s), 57.4 kilograms of NaOh(l), and 57.4 kilograms of HF(g) react completely, how many kilograms of cryolite will be produced?
March 6, 2012 by John

physics
One mole of titanium (6 1023 atoms) has a mass of 48 grams, and its density is 4.54 grams per cubic centimeter, so the center-to-center distance between atoms is 2.60 10-10 m. You have a long thin bar of titanium, 2.4 m long, with a square cross section, 0.11 cm on a side. You...
June 26, 2014 by hannah

college
List five resources you believe are needed for survival and discuss why they are needed for survival. If these resources become limited it may have an effect on the individual, community or population level. Discuss three consequences (one at each level: individual, community...
May 17, 2010 by gina

Chemistry
Given: H3PO4(aq) + 3 NaOH(aq) 3 H2O(l) + Na3PO4(aq) H = -166.5 kJ What is the value for q (heat) if 4.00 g of NaOH reacts with an excess of H3PO4? Please can you explain to me HOW to do this, not just give me an answer? Thanks!
November 30, 2008 by Jake

chemistry
3CuCl2-2H2O + 2AL--> 3Cu +2AlCl3+6H2O what is teh thepretical yield or copper? then what is the limiting reagent and excess reagent? whats the percentage yield?
November 25, 2010 by Brianna

Organic chemi
I have a calculated enantiomeric excess value of 7% for my limonene experiment, what exactly does that mean? that i only isolated 7% of the proper R-limonene isomer and the rest 93% is the S isomer?
June 1, 2011 by nully

CHEM
Aluminum reacts with Chlorine gas to form AlCl3. [2Al(s)+3Cl2(g)=2AlCl3(s)] Given 11.0g of Al and 16.0g Cl2, if you had excess Al, how many moles of AlCl3 could be produced from 16.0g of Cl2?
September 22, 2012 by leng

Chemistry
Calcium carbonate can be used as an antacid to treat excess stomach acidity. What type of substance is calcium carbonate? a. base b. reducing agent c. acid d. buffer
October 23, 2012 by Anonymous

Chemistry
In the following reaction, 451.4 g of lead reacts with excess oxygen forming 313.6 g of lead(II) oxide. Calculate the percent yield of the reaction. 2Pb(s)+O2(g)= 2PbO(s)
October 7, 2013 by Noelle

Chemistry
What volume in liters of C3H7Cl is produced if 400.0g of C3H8 (propane) reacts with excess chlorine gas according to the equation C3H8+ Cl2 --> C3H7Cl+HCl
April 15, 2014 by Megan

chemistry
a 0.96 millimole sample of Na2CO3 gave 0.9 millimoles of CO2 gas. If a 0.376 g of pure Na2CO3 was reacted with excess acid, what volume of gas will be measured on this apparatus
November 1, 2014 by kimberly

chemistry
If 6.20 mol of calcium carbide (CaC2) reacts with an excess of water, how many moles of acetylene (C2H2), a gas used in welding, will be produced? CaC2(s) + 2 H2O(l) Ca(OH)2(aq) + C2H2(g)
February 11, 2015 by nina

Economics: Comperative Advantage
Refer to Figure 4. Assume that Cliff and Paul were both producing wheat and corn, and each were dividing their time equally between the two. Then they decide to specialize in the product they have a comparative advantage in. As a result, total production of corn would a. ...
December 6, 2008 by Anonymous

Easy Pre-calculus Questions?
What is the value of x in the right triangle below? If needed, round your answer to two decimal places. 32 angle, 15 inches. A 10-foot ladder is leaning up against the side of a building so that the top of the ladder reaches the top of the building. If the ladder meets the ...
June 30, 2011 by kalakalikalakali

chemistry
Oxygen gas reacts with powdered aluminum according to the following reaction: 4Al(s)+3O2(g) yields 2Al2O3(s) What volume of gas (in L), measured at 770 mmHg and 35 degrees C, is required to completely react with 53.9g of Al?
March 8, 2009 by rusty

Chemistry
Using the balanced reaction, enter the formula, charge(if any), and state of the species (exclude H2O) in solution if neither reactant is present in stoichiometric excess. Separate your answers by comma. Pb(NO3)2(aq) + 2NaI(aq) → PbI2(s) + 2NaNO3(aq)
November 23, 2010 by Amrita

American History
Among members of George Washington cabinet _____ had a pessimic view of human nature and a dread of democratic excess. A. Adams B. Halimton C. Jefferson D. Marshall Im not sure of this answer I can't seem to find it in workbook..
January 26, 2014 by Shawn

Math Analysis -graphical method
a bakery makes both cakes and cookies. each batch of cakes reqire 2 hours in the oven and 3 hours in the decorating room. each batch of cookies need 3/2 hours in the oven and 2/3 of an hour decorating room. the oven is available no more than 15 hours a a day. while the ...
April 21, 2012 by Gracy

Proofread
Can you please proofread this for me. My teacher said that it was done correctly. Thank you. Freedom, wealth, security, and beliefs all branch off from the main cause of war. The positive beliefs that have been expressed regarding war, tend to state that every individual is ...
April 30, 2009 by Kara

Physics
1. I have vector A = 700 grams at 15 degrees north of east; what is A's component in the East Direction? (Answer with three significant figures. 7. I have vector A = 700 grams at 15 degrees north of east; what is A's component in the North direction? 1. 700 cos 15 = 676.1 7. ...
August 29, 2005 by Nisar

Chemistry
The term mole is used in chemistry to define an amount of a substance. For example, a mole of glucose, blood sugar, weighs 180.16 grams. A common concentration unit for solutions is moles of substance per liter of solution. We abbreviate this with the symbol M. For example, 0....
January 28, 2013 by Ryan

chem
I can't seem to figure this out! I know I have to use mass to mass conversions though. Can someone help me out? Hydrochloric acid can dissolve solid iron according to the following equation: Fe + 2HCl to form FeCl2 + H2 a) How much HCl in grams would you need to dissolve a 2.8...
March 1, 2007 by Abby

chemistry
What are the chemicals that cause ozone depletion. Provide information on their structures, how they are made, and how they react with ozone in the stratosphere. Also describe where these chemicals are found in industry and in household products.
November 24, 2009 by Dhoni

chemisrty
Nitric acid,HNO3, is available ata a concentration of 16 M. how much would react with 5.58 g of KOH acording to the following equation? HNO3+KOH-H2O+KNO3
November 21, 2010 by nicole

Economics
How would a communist economy react to social and technological changes? What is the role of nature in a communist economy? I can't find any information on these subjects. Could someone please help me? Thanks so much
February 11, 2011 by KC

chemistry
if a sample of alloy containing magnesium and metal that doesn't react wtih hydrochloric acid are reacted, how much heat would be evolved from a 5 gram sample that is 30% magnesium?
July 13, 2011 by mike

AP Chemistry
What volume of 0.149 M K3PO4 is required to react with 41 mL of 0.793 M MgCl2 according to the equation 2 K3PO4 + 3 MgCl2 → Mg3(PO4)2 + 6 KCl Answer in units of m
October 7, 2011 by Yolanda

chemistry 105
Lithium reacts with nitrogen gas according to the following reaction: 6Li(s)+N2(g)-->2LiN(s) What mass of lithium (in g ) is required to react completely with 59.9 mL of N2 gas at STP?
October 23, 2011 by JULIE

Chemistry (11th grade)
we have the following equation- 2HCl+CuSO4 yields H2SO4+CuCl2. the question is if 7 moles of HCl react, how many moles of H2SO4 will be produced?
June 3, 2012 by scott swing

Organic Chemistry
3.What would be the major product if 1,4-dibromo-4-methylpentane was allowed to react with: a)One equivalent of NaI in acetone? b)One equivalent of Silver Nitrate in ethanol?
November 1, 2013 by ANNA

Chemistry
What mass of Manganese (II) Chloride must react with sulfuric acid to release 45.0ml of hydrogen chloride gas at STP? Please list step by step.
October 24, 2014 by Loretta

science help
Hydrogen gas(H2) and chlorine gas(CL2) react to form hydrochloric acid (HCI). What is the correct balanced chemical equation for this reaction? is it H2 + Cl2 = 2HCl
March 30, 2015 by Oscar

math
A nurse needs to make 30 ml of 5% solution of glucose. She has available bottles containing 5 ml of 7% solution and bottles containing 10 ml of 1% solution. How many 5 ml bottles and 10 ml bottles will she need to make the solution? Bottles of 5 ml of 7% solution needed: ...
March 11, 2013 by Josh

Math: Elementary
How can children's concepts of partitioning need to be refined to produce a concept of fractional parts?
March 17, 2008 by Mary

Geometry
Which of the following scale factors would produce an expansion under a dilation of the original image? A. 2/3 B. -1/2 C. 3/2 D. -3/4
May 2, 2008 by Brooke

micro economics
Why are the firms in the perfectly competitve markets unable to control the prices of the goods that they produce?
June 29, 2009 by Marilyn

chemistry
describe how you would produce pure samples of iron and sulphur powders from a mixture of the two.
February 11, 2010 by Natalia

11th grade Physics
What resistance would produce a current of 120 amps from a 6-volt battery?
April 4, 2010 by Javier

11th grade Physics
What is the potential difference if a resistance of 25 ohms produce a current of 250 amperes?
April 4, 2010 by Javier

Chemistry
What mass of methane must be combusted to produce 1.00 x 10^3 kJ of heat? could someone write the equation and the answer? Thank You.
May 20, 2010 by Anonymous

MAth
explain how children's concepts of partitioning need to be refined to produce a concept of fractional parts
September 14, 2010 by Carrie

A&P
___________are usually attached to rough endoplasmic reticulum and produce enzymes and other protein componds.
September 19, 2010 by Abby

Physics
A 3200kg helicopter must accelerate up at 1.0m/s^2. What minimum lift do the rotors need to produce? Thanks for answering!
November 8, 2010 by Liam

Chemistry
What is the minimum amount of 1.75 m of HCL necessary to produce 28.5 L of H2 at stp? EQUATION IS AS FOLLOWS: Mg+2HCL->>MgCl2+H2
November 17, 2010 by Ricardo

science
How many moles of oxygen molecules, O2, are required to produce 0.268 mol of K2Cr2O7? Show your work.
December 29, 2010 by Sophie

math
The triangle above has side lengths of 24 mm and 38 mm. Which set of dimensions would produce a similar figure?
January 31, 2011 by Anonymous

chemistry
What temperature is required to produce a carbon dioxide partial pressure of 1.0 ? BaCO3BaO + CO2
March 19, 2011 by vince

Chemistry
Does the mixing of copper (I) nitrate with sodium iodide produce a precipitate? If so, give the molecular equation.
March 23, 2011 by Bruce

Chemistry
Is it possible to have an acid/base reaction and produce a precipitate as a product as well? If yes, provide an example.
March 23, 2011 by Bruce

chemistry
Is it possible to produce a form of sodium ferrate using these components? FeCl3 NaOH NaOCl
April 5, 2011 by Amber

7th grade science
All organisms can________________,or produce offspring that are similar to the parents. Please help! Thank you!
September 13, 2011 by saranghae12

Physics
A 822 kg car accelerates from rest to 101 km/h in 1.15s. What change in momentum does the force produce?
November 16, 2011 by Alyssa

math
The triangle above has side lengths of 18 mm and 26 mm. Which set of dimensions would produce a similar figure?
February 23, 2012 by Anonymous

thermochemistry
what is the formula to find the mass of propane that must be combusted to produce 188.3kj of energy?
August 11, 2012 by Anonymous

Chemistry
What electron transition in a hydrogen atom, ending in the orbit 5, will produce light of wavelength 3040 ?
October 10, 2012 by Anonymous

physics
state the surface powers required to produce the following lenses with +6.25D front curves. a. -0.50 DS 6. +0.50 DS c. +1.75 DS
October 23, 2012 by Help

physics
State the surface powers required to produce the following lenses with +6.25D front curves. a. -0.50 DS b. +0.50 DS c. +1.75 DS
October 24, 2012 by Anyone know the answer to this?

physics
State the surface powers required to produce the following lenses with +6.25D front curves. a. -0.50 DS b. +0.50 DS c. +1.75 DS
October 24, 2012 by Anonymous

physics
State the surface powers required to produce the following lenses with +6.25D front curves. a. -0.50 DS b. +0.50 DS c. +1.75 DS
October 25, 2012 by Anonymous

Chemistry
What electron transition in a hydrogen atom, ending in the orbit 4, will produce light of wavelength 2170 nm ?
November 26, 2012 by Chironjit

chemistry
calculate the volume of Nitrogen gas to produce 5.6 dm cube of nitric oxide at STP ,N2 + O2 = 2NO
February 20, 2013 by rupal

Chemistry
How many liters of hydrogen needs to be reacted with chlorine to produce 21g of hydrochloric acid, at STP?
July 21, 2013 by tom

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