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September 21, 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: 18,055

ap
An excess of aqueous AgNO3 reacts with 44.5 mL of 5 M K2CrO4(aq) to form a precip- itate. What is the precipitate? 1. K2CrO4 2. KNO3 3. Ag2CrO4 4. AgNO3 What mass of precipitate is formed? Answer in units of g
October 1, 2012 by cheri

Chemistry
a student conducts and experiment by reacting 39.6g CuSO4 with an excess of MgS. The reaction yields 9.5599g CuS. What is the percentage yield? MgS+CuSO4=CuS+MgSO4
October 3, 2012 by Amanda

chem
I have a problem i don't get... H3PO4+3NaOH -> 3H2O+Na3PO4 How many moles of Na3PO4 will be produced from 1.7 moles of NaOH in the presence of excess H3PO4?
January 18, 2009 by Bob

science
Ca3(PO4)2 + 2H2SO4 = 2CASO4 + Ca(H2PO4)2 How many moles of CaSO4 can be produced by the reaction of 0.39 moles of Ca3(PO4)2 with excess H2 SO4?
October 24, 2010 by neil

physics
To say an object has a negative charge is to say it has an excess of what kind of charges? A) Either protons or electrons.B) Electrons.C) Protons.D) None of these
April 10, 2012 by Jim

Chem
Calculate the mass of PbCl2 formed when an excess of 0.100 M solution of NaCl is added to 0.4L of 0.7 M Pb(NO3)2. Pb(NO3)2 + 2 NaCl --> PbCl2 + 2 NaNO3
May 18, 2014 by DOnnie

chemistry
Bill finds an unusual object and wishes to calculate it's density. He discovers a problem of accurately weighing it, because it won't stay on the weighing pan. To solve this he adds the object to a beaker containing 190 mL of distilled water and finds the water level rises to ...
September 7, 2009 by abbey

chem
I am still having a little problem with my original question. However, this is what I have done so far. I am not sure what to do with the density of the solution of 0.78 g/mL. The answer I came up with is 5.47 mol/kg. I found the density of the water in grams then I converted ...
February 13, 2011 by paula

Chemistry
what volume of ammonia gas will be produced when 1.26L of nitrogen react completely in the following equation? N2 + 3H2 > 2NH3 Please if someone can just give me the order of operation it will be much appreciated because chemistry is just not my forte.
April 16, 2012 by Randy

Chemistry
Carbon monoxide and chlorine gas react to form phosgene: CO(g)+Cl2(g)⇌COCl2(g) Kp = 3.10 at 700 K If a reaction mixture initially contains 319torr of CO and 220torr of Cl2, what is the mole fraction of COCl2 when equilibrium is reached?
February 16, 2014 by Morgan

math
Graph the following equations; calculate the slope, x-intercept, and y-intercept, and label the intercepts on the graph. 1. A temperature of 41 degrees F is equivalent to 278.2 degrees K, while a temperature of 86 degrees F is equivalent to 303.2 degrees K. Find the equation ...
July 16, 2007 by lisa

math
this problem is given me very much difficulty because of the set up and what to do. can someone assit me if you have a few minutes. thanks. Income. A baker has 250 units of flour, 90 of sugar, and 150 of raisins. A loaf of raisin bread requires 1 unit of flour, 1 of sugar, and...
June 14, 2007 by student

business
1. On the income statement, extraordinary items are reported A. immediately after the continuing operations section. B. before the operating income section. C. immediately before the discontinued operations section. D. net of income tax or net of income tax savings. 2. _______...
August 11, 2014 by sharon

chemistry
If a total of 13.5 mol of NaHCO3 and 4.5 mol of C6H8O7 react, how many moles of CO2 and Na3C6H5O7 will be produced? 3NaHCO3(aq) + C6H8O7(aq) {3CO2(g) + 3H2O(s) +Na3C6H5O7(aq)
July 29, 2008 by natasha

chemistry
Sodium phosphate, Na3PO4, reacts with HCl to form H3PO4 and NaCl. How many liters of 0.1 M HCl are required to react with 0.1 mole of sodium phosphate?
October 13, 2008 by Ethan

organic chem
when di-n butyl ether and hot concentrated naoh react----> nor rxn .. why? when di n butyl ether reacts with na metal---> nor reaction .. why?
March 11, 2012 by lou

chemistry
Ammonia, 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 with enough N2? Please help!
March 19, 2012 by Britt

Chemistry
If a total of 13.5 mol of NaHCO3 and 4.5 mol of C6H8O7 react, how many moles of CO2 and Na3C6H5O7 will be produced? 3NaHCO3(aq) + C6H8O7(aq) > 3CO2(g) + 3H2O(s) + Na3C6H5O7(aq)
May 6, 2012 by Liz

Chemistry
Aspirin (C9H8O4) is synthesized by the reaction of salicylic acid (C7H6O3) with acetic anhydride, C4H6O3. 2C7H6O3 + C4H6O3 −→ 2C9H8O4 + H2O When 19 g of C7H6O3 and 19 g of C4H6O3 react, which is the limiting reagent?
September 23, 2012 by Andrea

college chemistry
When ethane reacts with oxygen to form carbon dioxide and water. When 10 molecules of ethane react with 20 molecules of oxygen, what is the composition of the FINAL mixture?
July 12, 2012 by maribel

Gen chem 1
According to the following reaction, what volume of 0.25 M CaCl2 solution is required to react exactly with 50.0 mL of 0.20 M Pb(NO3)2 solution? CaCl2(aq) + Pb(NO3) (aq)- PbCl2(s) + 2 KNO3(aq).
March 11, 2013 by jenni

organic chemistry
compare and contrast the reactivity of the organometallic reagents R2Cd, RLi, R2CuLi, RMgBr, RZnBr with respect to ethyl chloride, ethanoic acid and 2-cyclohexen-1-one im not really sure what its asking and i dont know how they react differently determines their reactivity ...
November 2, 2009 by Lucy

Chemistry
Given that 14.2 liters of chlorine gas react according to the following equation... Cl2 + 3 F2---> 2ClF3 Question: If all gases were under the same conditions of temperature and pressure,what volume of chlorine triflouride would be produced? (using mole ratio)
March 31, 2011 by Sam

Chemistry
Given that 14.2 liters of chlorine gas react according to the following equation... Cl2 + 3 F2---> 2ClF3 Question: If all gases were under the same conditions of temperature and pressure,what volume of chlorine triflouride would be produced? (using mole ratio)
March 31, 2011 by Sam

Chemistry
Given that 14.2 liters of chlorine gas react according to the following equation... Cl2 + 3 F2---> 2ClF3 Question: If all gases were under the same conditions of temperature and pressure,what volume of chlorine triflouride would be produced? (using mole ratio)
March 31, 2011 by Sam

physics 2
how much excess charge must be placed in a copper sphere so that its electric potential relative to infinity is 150kv radius 0.125 m b)what is the potential of the surface relative to infinity
February 24, 2010 by Anonymous

math/geometry
Two boxes must be wrapped. Both boxes are right rectangular prisms. The smaller box has a length of 12 inches. The larger box is similar to the first and has a length of 48 inches. Find the ratio of the amount of paper needed to wrap the large box to the amount of paper needed...
March 24, 2011 by me

chemistry
Determine the number of bromide ions in solution when 4.23 g of magnesium bromide and 1.21 g of potassium bromide are dissolved in 120mL of water. Please explain not sure how to even start this problem, thanks! chemistry - DrBob222, Wednesday, December 8, 2010 at 7:57pm ...
December 8, 2010 by Stacy

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
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

English
Posted by rfvv on Tuesday, August 30, 2011 at 2:04am. 1. The eighth square on the second row needed 256 spoons of rice, which amounted to a bowl. 2. The eighth square on the second row needed 256 spoons of rice, and it amounted to a bowl. 3. The eighth square on the second row...
August 30, 2011 by rfvv

math i don't get it
1. In the storeroom, folders are stored in packages of 8. What is the least number of packages needed for a class of 35 students? 2. The cafeteria workers store small milk cartons in the refrigerator in stacks of 6. If each worker carries no more than one stack, what is the ...
January 6, 2013 by Anonymous

Chemistry
Sodium carbonate reacts with hydrochloric acid as shown in an unbalanced chemical equation. What mass of Co2 is produced from the reaction of 2.94g Na2 Co2 with excess HCI? Na2CO3(s)+HCI(aq)+ CO2(g)+H2O A. 1.22 g B. 2.44 g C 2.94 g D 5.88 g E 7.08 g
July 21, 2011 by Taru

Chem
22.4/2 liters. what is the volume 16 grams of O2 at STP?
February 5, 2007 by bobpursley

chemistry
how many molecules are there in 450 grams of FeF3?
September 15, 2007 by jessica

science
How many grams of water is 6.023451 liters?
September 7, 2008 by codie

science
what is the molar mass for C2H5OH in grams
December 15, 2008 by lil iverson01

math
how many grams of NaC1 are in 100mL of NS solution?
March 14, 2009 by karen

chemistry
how many grams of phosphorus are there in 160 g of P4O10
November 10, 2009 by Trace

chemistry
how many grams of Sb2S3 will contain 4.80 moles of S
November 14, 2009 by Trace

Chemistry
How many grams of potassium chromate are in K2CrO4?
May 26, 2010 by Ashley

science
Convert 12.5 mol Cl2 to grams
July 11, 2010 by Anonymous

chemistry
Determine the mass in grams of 2.56*10^24 atoms in Li
October 6, 2010 by Aundrea

Chemistry
What is the mass, in grams, of each of the following? 44.3 mol Xe
October 14, 2010 by Lisa

chemistry
How many grams of Au2S can be obtained from 1.17 mol?
November 16, 2010 by kim k

Chemsistry
How many moles are there in 857 grams of sodium?
November 22, 2010 by Anonymous

Chemistry
How many moles are there in 569 grams of copper
November 22, 2010 by Anonymous

Chemistry
How many moles are there in 965 grams of boron
November 22, 2010 by Anonymous

chemistry
How many molecules are 100.00 grams of H2O?
November 29, 2010 by jeff

SCIENCE
WHAT IS THE WEIGHT OF THE HUMAN BRAIN IN GRAMS?
December 16, 2010 by ANTONIO

chemistry
how many grams of drug are in 75mL of a 4% solution/
January 15, 2011 by Anonymous

idk
How many moles of carbon tetrachloride are in 51.0 grams?
January 17, 2011 by idk

chemistry
how many moles are in 5 grams of no2 molecules?
January 25, 2011 by james

chemistry
convert 4.37 moles of NaOH to grams.
January 27, 2011 by Amanda

chemistry
How many grams of NaOH are there in 2.5L of a 0.343M solution?
February 9, 2011 by twynna

chemistry
How many grams of NaOH are there in 2.5L of a 0.343M solution?
February 13, 2011 by twynna

CHEMISTRY
Benzene equals 78.11 grams/mole
February 14, 2011 by dan

chemistry
how many grams of oxygen are in 560g of ribose?
February 15, 2011 by Noelle

chemistry
How many grams of NaOH are there in 2.5L of a 0.343 M solution?
February 20, 2011 by twynna

chemistry
How many grams of NaOH are there in 2.5L of a 0.343M solution?
March 12, 2011 by n/a

chemistry
How many oxygen atoms in 9 grams of sugar?
August 31, 2011 by sabaah

MATH
A JUMPROPE IS MEASURED BY GRAMS OR KILOGRAMS
March 30, 2011 by CHRIS

Science
how many atoms of carbon in 18 grams of C3H8o
March 28, 2011 by Sylvia

chemistry
3 molecule of water contains how many grams?
March 16, 2011 by aryan

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

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