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May 29, 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: 19,873

gr12 chem
Both propane and propene react with bromine. State two ways in which these two hydrocarbons can be distinguished in their reaction with bromine
February 5, 2010 by haley

Chemistry
Br2 + 5F2 --> 2BrF5 How many molecules Br2 react with 1.11 x 10^20 molecules F2? I got 2.21 x 10^47 but I feel that's too big and is most likely wrong. Can someone help me?
March 4, 2010 by Ana

chemistry
How many milliliters of 0.205 M NH3 solution will exactly react with 50.0 mL of 0.150 M H2SO4 solution? 2NH3(aq) + H2SO4(aq) → (NH4)2SO4(aq)
October 29, 2010 by bryce

Chemistry
If you react 55g of hydrazine and 55g of oxygen gas, what is the maximum moles of nitrogen dioxide gas that can be made and what is the limiting reagent?
March 1, 2011 by Melanie

Chemistry
In the following reaction, how many liters of oxygen will react with 124.5 liters of propane (C3H8), at STP? C3H8 + 5O2= 3CO2 + 4H2O
September 14, 2011 by Anonymous

chemistry
Given the following reaction: TiCl4 + O2→ TiO2 + Cl2 If 51.44 g TiCl4 react with 82.32 g O2 complete a mass balance table for this reaction.
November 17, 2011 by mary

chemistry
3 Cl2 + 6 KOH go toKClO3 + 5 KCl + 3 H2O How many moles of potassium chlorate form when 2 moles of potassium hydroxide react completely?
November 24, 2012 by linda

chem.(sci)
___NH3+___O2->N2+H2O (this is not balanced) how many moles of oxygen react with 0.23 moles of NH3? HOW many moles moles of N2 will be produced when reacted with 5 mol of O2?
January 24, 2013 by tyneisha

Chemistry
A solution containing 0.100 mol of Na2CO3 and 0.100 mol of NiCl2 is allowed to react. What mass of precipitate forms in this reaction?
February 23, 2013 by Eagertolearn

Chemistry
You are given 21.0 mL of a 5.00% solution of NaOH. The solution has a density of 1.02 g/mL. What volume of 0.0895M H2SO4 will you need to completely and exactly react (neutralize) the NaOH?
October 22, 2014 by Kelly

physics
Find the threshold energy that the incident neutron must have to produce the reaction 1 n 0 + 4 He 2---> 2 H 1 + 3 H 1 For this, like the 1 n 0<--- it is supposed to be written like 1 on the top 0 on the bottom next to n. like the atomic number of neutron and the other ...
February 16, 2007 by jaimie

Chem Problem
I originally asked you the first question and I got the answer 7.7 but theres other parts to the problem but Im not sure 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 ...
October 10, 2012 by Kelli

Chem Problem
I originally asked you the first question and I got the answer 7.7 but theres other parts to the problem but Im not sure 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 ...
October 10, 2012 by Kelli

Chemistry
Consider the following chemical equation. Cl2(g) + O2(g) → Cl2O3(g) Assuming all gases are at the same temperature and pressure, how many milliliters of oxygen gas must react to give 3.50 L of Cl2O3?
December 5, 2010 by Kalen

Stoichiometry
So I have this question it reads Consider the generic chemical reaction How many moles of B are required to completely react with 2A + 3B ==> 3C 1. 6 mol of A 2. 2 mol of A I won't put them all just guide me in the right direction please
October 5, 2011 by Monique

chemistry
I need to convert a word problem that I was given into a balanced chemical equation and cannot figure out how i was type it. The problem is: Nitrogen and hydrogen gases react at extreme temperatures and pressures. Any help?
January 8, 2012 by Zoe

Chemistry
Given the following unbalanced equation C4H10 (g) + O2 (g) → CO2 (g) + H2O (l) What mass of water forms if 6.5 L of C4 H10 (g) measured at STP is allowed to react with 32.0 L of O2 (g)measured at 27C and 1.68 atm pressure? Would it be 26.1 (g)
May 2, 2013 by Kim

Chemistry 1110
If 3 L of hydrogen and 1.5 L of oxygen at STP react to yield water how many moles of water are formed? What gas volume does the water have at a temperature of 100degrees C and 1 atm pressure?
March 13, 2012 by Trina

Chem
Given this reaction: Pb(NO3)2 + 2 KCl --> PbCl2 + 2KNO a. How many milliliters of 2.00 M Pb(NO3)2 will react with 50.0 mL of 1.50 M KCl
March 31, 2011 by stephanie

biology
How do melosis and sexual reproduction (fertilization) produce offspring that differ genetically from the parents?
June 30, 2008 by chosen

Physical science
Devices that use semiconducters to produce electricity from solar energy are called?
January 16, 2008 by Jordan

physics
does a ball moving at a constant speed around a circular track produce acceleration?
March 9, 2008 by Jason

biology
What process releases energy from food to do work,produce ATP and heatin cells?
June 4, 2008 by chris

physical science
Which acid reacts with KOH to produce the salt KCI? Thank you very much.
January 4, 2009 by Lisa

algebra
How do you complete the square by filling in the two blanks so as to produce a true equation. x^2 - 12x + ---- = (x - -----)^2
April 25, 2010 by dan

chemistry
what mass of potassium hydroxide is required to produce 2.00L of a solution mthat has a pOH of 4.5?
May 8, 2010 by judi

social studies
A _______ uses metal plates and a conducting solution to produce current
June 1, 2010 by nerd nada

science
what volume of benzene ( C6H6 d=0.88g/ml molar mass = 78.11) is required to produce 1.5*10^3 kj of heat
June 30, 2010 by na

Health
1. The use of chemical fertilizers and pesticides to produce food is sustainable. A. True B. False
August 5, 2010 by Christopher

physics
does each of the two lenses used in a microscope produce a magnification of the object being viewed?
October 17, 2010 by andy

chemistry
Determine the weight of Calcium Carbonate decomposed to produce 4 liters of Carbon Dioxide.
March 12, 2011 by Patrick

bio270
In an electrocardiograph a wave of sustained depolarization moving towards a negative electrode will produce:
October 16, 2011 by m

biology
does the human ovum produce any chaemotactic hormones or sugars to attract sperm cells?
February 6, 2012 by ramannachowdary

Chem 1A
Help please! How many moles of NaOH must be added to 1.0 L of 3.0 M HC2H3O2 to produce a solution buffered at each pH? 1) pH= 3.78 2) PH= 6.52
March 15, 2012 by Mackenzie

alg2/trig
If 4x^2+9=kx, what value of k will produce equal roots? the answer is 12 but i dont understand how you get it, please help!
April 5, 2012 by lisa

Basic Dressmaking Processes
In order to produce a professional- looking garment, pressing should be done?
April 24, 2012 by linda

physics
what device could use th earth's magnetic felds to produce energy and how it would work?
October 12, 2012 by mary

chemistry
find work done when 1mole of calcium carbide reats with water to produce acytelene?
February 24, 2013 by arpit

Science
If 15gram of potassium trioxochlorate V is heated in the presence of MnO2.What is the mass of chloride produce?
March 6, 2013 by Samuel Wolobah

Science
If 15gram of potassium trioxochlorate V is heated in the presence of MnO2.What is the mass of chloride produce?
March 6, 2013 by Samuel Wolobah

Science
If 15gram of potassium trioxochlorate V is heated in the presence of MnO2.What is the mass of chloride produce?
March 6, 2013 by Samuel Wolobah

Chemistry
If 15gram of potassium trioxochlorate V is heated in the presence of MnO2.What is the mass of chloride produce?
March 6, 2013 by Samuel Wolobah

Chemistry
If 15gram of potassium trioxochlorate V is heated in the presence of MnO2.What is the mass of chloride produce?
March 6, 2013 by Samuel Wolobah

chemistry
Name three sodium salts that produce weak bases in aqueous solution.
April 15, 2013 by alex

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
A researcher wishes to estimate, with 95% confidence, the proportion of adults who have high-speed internet access. Her estimate must be accurate within 4% of the true proportion. A) Find the minimum sample size needed, using a prior study that found that 54% of the ...
June 10, 2012 by Anonymous

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

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

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
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

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
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
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

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
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
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

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

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

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

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

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

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

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

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

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