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January 24, 2017

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: 22,882

CHEM
How many liters of O2 will react with 100 liters of H2 according to the gas phase reaction: O2 + 2H2 ------2H2O
May 3, 2013 by MICHELLE

Chemistry
How many moles of hydrochloric acid are required to react with 2.57 moles of calcium hydroxide in a neutralization reaction?
March 24, 2014 by Anonymous

chemistry
What volume of a 0.610 M NH4I solution is required to react with 525 mL of a 0.300 M Pb(NO3)2 solution?
June 23, 2014 by marie

chemistry
what volume of 0.150M Li2Sr solution is required to completely react with 130ml of 0.150M Co(NO3)2
October 17, 2014 by Jake

Chemistry
How would you write the equation to represent "Nitrogen and Oxygen react to form Nitrogen Dioxide".
October 4, 2015 by Elle

writing
how might someone who listened to the play from the beginning react differently from someone who tuned in late?
November 12, 2015 by Derick

chem
What volume of a 0.430 M NH4I solution is required to react with 289 mL of a 0.560 M Pb(NO3)2 solution?
May 20, 2016 by mee

STOICHIMOETRY
HOW MANY MOLES OF O2 CAN BE PRODUCED BY LETTING 12.00 MOLES OF KClO3 REACT?
October 15, 2009 by MOLLY

chemistry
why does 2 mole NaOH react with 1 mole HCl in titration?
November 2, 2010 by Mary

chemistry
How many H2O molecules are formed when 14 methanol molecules react?
November 8, 2010 by Kaley

science
How mny moles of Mg would you need to react with 2.5 moles of O2?
March 9, 2011 by dee

science
how many liters of oxygen will react with 124.5 liters of propane
September 16, 2011 by david

chemistry
How many CO2 molecules are formed when 10 methanol molecules react?
December 11, 2013 by andy

Chemistry
Elements that do not chemically react with other elements are said to be???
September 7, 2015 by Alessandra

Chemistry
How many moles of hydrogen from when 10 moles of methane react completely?
November 17, 2016 by Marissa

Chem help?
In an experiment 5.57 +/- 0.02 grams of water chemically decomposes into the products hydrogen gas and oxygen gas. The measured mass of oxygen gas produced in the reaction is 4.9320 +/- 0.0001 grams. The hydrogen gas occupies a volume of 6902 mL. Report the density of the ...
February 7, 2008 by sool

CHEM!!
In an experiment 5.57 +/- 0.02 grams of water chemically decomposes into the products hydrogen gas and oxygen gas. The measured mass of oxygen gas produced in the reaction is 4.9320 +/- 0.0001 grams. The hydrogen gas occupies a volume of 6902 mL. Report the density of the ...
February 7, 2008 by HELP!!

chemistry
I have 3 grams of CaCI2 and dissolve this into 0.5 L water. What is the concentration in g/dl (grams/deciliter)? I take 10 milliliters of this solution and add it to 990 milliliters of watet fo a total of 1000 milliliters. What is the concentration of this new dilution in ...
September 17, 2014 by maria

Math
Solve the puzzle =RIGHT(LEFT($B$2,84),1) =RIGHT(LEFT($B$2,17),1) =RIGHT(LEFT($B$2,138),1) =RIGHT(LEFT($B$2,2),1) =RIGHT(LEFT($B$2,234),1) =RIGHT(LEFT($B$2,138),1) =RIGHT(LEFT($B$2,4),1) =RIGHT(LEFT($B$2,173),1) =RIGHT(LEFT($B$2,2),1) =RIGHT(LEFT($B$2,209),1) =RIGHT(LEFT($B$2,4...
November 9, 2012 by Suzanne

chemistry
Calculate the number of grams of reactant left over when 28.35 grams of silver reacts with 50.0 liters of air at STP which is 20.9476 % oxygen by volume. The density of air at STP is 1.292 g/L. attemtp at solution volume of oxygen= .209476*50L=10.5L How do i go from volume of ...
November 8, 2008 by jason

statistics
In a study of termite populations in Swaziland, the following data were gathered on the percentage of termites that were classified as "major workers" at seven randomly selected sites:37.6 20.0 28.8 29.9 51.9 13.6 34.5 29.0 a)Use the given data to produce a point estimate of...
March 26, 2012 by tea

Economics
Hey just needed some pointers on the following questions. True or False? Explain.. 1. As long as the firm has to pay for an input, it would be wasteful not to use all input services purchased? 2. A profit-maximising competitive firm will never produce in the region where ...
October 11, 2006 by Jason

Physics HELP HELP
(for some reason I keep getting this wrong. I put 90 for c, 5.6 for h and 22 for M(x), Then I took the natural log of both sides, but I keep getting it wrong) The mass of a radioactive element at time x is given by the equation below, where c is the original mass and h is the ...
November 10, 2010 by Anonymous

chemistry
How many moles of Ag can be produced if 350.g of Cu are reacted with excess AgNO3 according to the equation Cu(s) plus 2AgNO3(aq) plus Cu(NO3)2(aq)?
March 18, 2008 by Whittney

chemistry
An Excess of hydrogen sulfide reacts with 42 moles of oxygen. How many moles of each product is formed using the BCA Table?
April 21, 2008 by jessy

chemistry
when 4.00 times 10 to the fifth kg of H2 is added to an excess of N2, 1.04 times ten to the sixth kg of NH3 is produced. what is the percentage yield of th ereaction?
October 20, 2010 by alex

chemistry
what would be the amount of water that would be formed during the complete combustion of propane in the presence of excess oxygen?
January 12, 2011 by mikayla

Physics
A negatively charged balloon has 3.1 μC of charge. How many excess electrons are on this bal- loon? Answer in units of electrons.
March 7, 2011 by Maria

Physics
A negatively charged balloon has 3.1 μC of charge. How many excess electrons are on this bal- loon? Answer in units of electrons.
March 7, 2011 by Maria

Physics
A negatively charged balloon has 3.1 μC of charge. How many excess electrons are on this bal- loon? Answer in units of electrons.
March 7, 2011 by Maria

Physics
A negatively charged balloon has 3.1 μC of charge. How many excess electrons are on this bal- loon? Answer in units of electrons.
March 7, 2011 by Maria

Physics
A negatively charged balloon has 3.1 μC of charge. How many excess electrons are on this bal- loon? Answer in units of electrons.
March 7, 2011 by Maria

Physics
A negatively charged balloon has 3.1 μC of charge. How many excess electrons are on this bal- loon? Answer in units of electrons.
March 7, 2011 by Maria

Physics
A negatively charged balloon has 3.1 μC of charge. How many excess electrons are on this bal- loon? Answer in units of electrons.
March 7, 2011 by Maria

physics
A negatively charged balloon has 4.6 μC of charge. How many excess electrons are on this bal- loon? Answer in units of electrons.
March 20, 2011 by maria

Stuyvesant HS
when 21.6g of benzene and an excess of HNO3 are used, what is the theoretical yield of nitrobenzene? Is 30g of nitrobenzene is recovered, what is the percent recovery?
September 18, 2014 by Tony Wu

Chemistry
6 mol sample of Cu2S is roasted in excess O2 to yield Cu metal and SO2. Calculate the mass of Cu metal produced
February 14, 2015 by Ana

Chemistry
Hydrocarbon burn in excess oxygen yields 4.4g of carbon(iv)oxide and 2 of 7g of water. Find the empirical formula of hydrocarbon
November 16, 2015 by Prudent

chemistry
QUESTION 9 The number of moles of the reagent in excess can be used to calculate the moles of the products of the reaction. TRUE FALSE
July 11, 2016 by Anonymous

socialstudies
1. Which is an example of checks and balances? The constitution contains a bill of rights that details the basic rights of the state’s citizens. The constitution clearly outlines voting requirements and the qualifications for holding public office. The legislative branch ...
February 14, 2016 by boPy

Chemistry
A reaction was run where lead nitrate and potassium iodide were mixed. The resulting precipitate only gave a 78.1% yield. If the actual yield was 25.0grams, how many grams of lead nitrate were used? This is what I have so far: Potassium Iodide= KI = 166.0028g/mol lead nitrate...
June 10, 2009 by Aparicio

chemistry
I post this question two time before but the degree sign is wrong so I post this one with everything corrected for the final time. Thank upon who answer this question on the other 2 same question before. Calculate the final temperature that results from mixing 245 grams of ...
November 14, 2016 by cao

physics
If a car takes a banked curve at less than the ideal speed, friction is needed to keep it from sliding toward the inside of the curve (a real problem on icy mountain roads). (a) Calculate the ideal speed to take a 105-m radius curve banked at 13.0°. km/h (b) What is the ...
November 30, 2012 by HELP!!!

Science
I am figuring out how much KCL will dissolve in 50 grams of water at sixty degrees, based on a graph. According to the graph, 45 grams of KCL can dissolve at 60 degrees. So I subtracted 45 from 50, and got five. The thing is my book said the answer should be between somewhere ...
March 12, 2009 by Aurora

chemistry
Based on the balanced equation 2Ba + O2 → 2BaO calculate the number of BaO formula units formed when 142 Ba atoms and 73 O2 molecules react?
February 12, 2010 by eng

chemistry
What volume of 0.123 M K3PO4 is required to react with 60 mL of 0.862 M MgCl2 according to the equation 2K3PO4+3MgCl2--> Mg3(PO4)2+6KCl Answer in units of mL.
March 10, 2010 by Steven

chemistry
What volume of 0.174M Na3PO4 solution is necessary to completely react with 89.1mL of 0.106M CuCl2? 2Na3PO4(aq) + 3CuCl2(aq) produces Cu3(PO4)2(s)+ 6NaCl(aq)
October 9, 2010 by Anonymous

chemistry
What volume (in Liters) of oxygen must react to form 17.0L of carbon dioxide according to the following balanced equation: 2CO(g) + O2(g) --> 2CO2(g) is this correct C G02 2
October 16, 2010 by amber

College Chem
Based on the balanced equation 4Na + O2 → 2Na2O calculate the number of Na2O formula units formed when 60 Na atoms and 10 O2 molecules react? Thanks.
April 15, 2012 by Lance

College Chem
Based on the balanced equation 4Na + O2 → 2Na2O calculate the number of Na2O formula units formed when 60 Na atoms and 10 O2 molecules react? Thanks.
April 15, 2012 by Lance

Chemistry
2CO(g) + O2(g) 2CO2(g) Go = -511.6 kJ and So = -173.1 J/K at 314 K and 1 atm. The maximum amount of work that could be done by this reaction when 2.43 moles of CO(g) react at standard conditions at this temperature is__________ kJ. how?!
April 26, 2012 by Bryan

AP Chemistry
What volume of 0.596M K3PO4 is required to react with 29 mL of 0.864 M MgCl2 according to the equation 2K3PO4 + 3MgCl2 -> Mg3(PO4)2 + 6KCl Answer in units of mL
October 21, 2012 by Tara

chemistery
What is the molar concentration of a solution of sulfuric acid, H2SO4, if 4.64 mL react completely with 0.644 g of NaOH which was dissolved in 200 mL of water? Hint given in feedback
October 7, 2014 by johny

chemistry
Can aluminum (Al) react with K2SO4 by single replacement to yield products? Using the activity series chart, I know that K is more reactive than Al so does that mean that a reaction will occur or not?
April 27, 2015 by Ally

Chemestry
Calculate the volume of a 0.225 M solution of potassium hydroxide,KOH,required to react with 0.215g of acctic acid,CH,COOH=KCH,COO+H2O.
March 4, 2016 by C'm mulerk

chemistry
Assuming all gases are at the same temperature and pressure, how many milliliters of hydrogen gas must react to give 41.0 mL of NH3? 3H2(g)+N2(g)→2NH3(g)
July 20, 2016 by Maria

Safety
Do other countries have individuals who played a significant role in starting safety prgrams in their countries? NEED REFERENCES Thanks! sometimes but not very much umm I need a better answer than that Thank you for using the Jiskha Homework Help Forum again. Didn't you find ...
April 9, 2007 by Ashley

algebra
Suppose a sample of Cesium-137 with initial mass of 200 grams decays to a mass of 160 grams voer the course of 10 years. Find the half-life of Cesium-137 (Round to the nearest year) How much Cesium-137 is left in the sample after 60 years? Round to the nearest tenth of a gram.
July 30, 2011 by Melanie

English
1. We need 2 cups of flour. 2. We need 40 grams of butter. 3. We need 100 grams of sugar. (Are they all grammatical?) 4. We meet 9:00 am on April 3. 5. We meet at 9:00 a.m., April 3. 6. We meet on April 3 at 9:00 a.m. 7. We meet April 3, 9:00 a.m. (Which one is grammatical? ...
April 25, 2012 by rfvv

chemistry
A sample of one liquid has a mass of 60 grams and a volume of 50 centimeters cubed; a sample of a second liquid has a mass of 30 grams and a volume of 40 centimeters cubed. They are put in a container and mixed. Can you determine what the mass and the volume of the mixture is?
October 12, 2012 by Ann

Chemistry
Acetylene, C2H2, can be converted to ethane, C2H6, by a process known as hydrogenation. The reaction is: C2H2(g) + 2H2(g) === C2H6(g) Given the following, what is the Kp for the reaction? C2H2(g): 209.2 ΔG˚f (kJ/mol) H2(g): 0 ΔG˚f (kJ/mol) C2H6(g): -32.89&#...
March 31, 2013 by Ezra

chemistry
What volume (mL) of sulfur dioxide can be produced by the complete reaction of 3.82 g of calcium sulfite with excess HCl, when the final SO2 pressure is 827 torr at 44 degrees celsius?
August 6, 2009 by Bryan

chemistry
4.0 gram of ferrous ammonium sulphate, FeSO4*(NH4)2SO4 * 6H2O, is used. Since the oxalate is in excess , Calculate the theoretical yield of the iron complex
November 3, 2009 by Anonymous

Stoichiometry
If 0.500 g of sulfur dioxide from pollutants reacts with excess water and oxygen found in the air, what mass of sulfuric acid can be produced? 2H2O(l)+O2(g)+2SO2(g)= 2H2SO4(aq)
April 19, 2011 by YV

Stoichiometry
If 0.500 g of sulfur dioxide from pollutants reacts with excess water and oxygen found in the air, what mass of sulfuric acid can be produced? 2H2O(l)+O2(g)+2SO2(g)= 2H2SO4(aq)
April 19, 2011 by YV

Chemistry
What volume (in ml) of carbon dioxide will form if 19.3 ml of O2 are reacted acccording to the following balanced equation: 2CO(g) + O2(g) --> 2CO2(g) Assume an excess of CO and that all are at the same temperature and pressure.
October 17, 2011 by Sven

chemistry
4.0 gram of ferrous ammonium sulphate, FeSO4*(NH4)2SO4 * 6H2O, is used. Since the oxalate is in excess , Calculate the theoretical yield of the iron complex.
November 16, 2011 by Anonymous

chem
In an experiment 4.0 g of ferrous ammonium sulphate, FeSO4.(NH4)2SO4.6H2O, is used. Since the oxalate in in excess, calculate the theoretical yield of the iron complex?
November 16, 2011 by Anonymous

cheistry
Write a net ionic equation for the overall reaction that occurs when aqueous solutions of hydrosulfuric acid and potassium hydroxide are combined. Assume excess base.
November 17, 2011 by savannah

physical science
Plan,design and conduct investigation to find out whether the amount of gas produced will depend on the increase on the concentration of HCl when it reacts with an excess Zn
April 6, 2013 by kamogelo

Chemistry
Consider the reaction 2D2(g)+O2(g)→2D2O(l) What is the mass of heavy water, D2O(l), produced when 7.65g of O2(g) reacts with excess D2(g)? Express your answer with the appropriate units.
April 14, 2015 by Brittany

chemistry
2.00g of carbonate reacts with excess hydrobromic acid. Use this balanced equation to fond the theoretical yield. Na2Co3 + 2HBr = CO2 + H2O + 2NaBr
August 16, 2016 by jane

chemistry
CH4+2O2-->CO2+2H2O If 22.75g of carbon dioxide is obtained when 9g of methane is burned in excess oxygen, what is the percent yield? Show work too please
November 26, 2016 by help pls

Chemistry
Calculate the theoretical yield of MnO3 when 2.0 moles of Mn react with 2.0 moles O2. Write a balanced equation for the reation.
March 17, 2008 by AR

Managerial Economics
How would you react to a sales manager’s announcement that he or she has in place a marketing program to maximize sales?
August 29, 2010 by Anonymous

Chemistry
(1) What is the percentage oxygen in 4grams of caco3. (2) What mass of Oxygen is require to react completely with 16grams of hydrogen.
March 21, 2011 by Fabian

Chemistry
Consider the following generic chemical equation 2A + 4B ¨ 3C What is the limiting reactant when 3 moles of A and 4 moles of B are allowed to react?
October 10, 2011 by Anonymous

chemistry/ stioichiometry
Cu2S + O2- 2Cu +SO2 when 10.2 mol Cu2S react with oxygen, how many moles of Cu are formed? path?
April 9, 2012 by rachell

chemistry/ stioichiometry
Cu2S + O2- 2Cu +SO2 when 10.2 mol Cu2S react with oxygen, how many moles of Cu are formed? path?
April 9, 2012 by rachell

port charlotte high
2Nacl +2HCL = 2NaCl + H2 what mass of sodium is required to react with 8.45g of HCl
February 25, 2013 by john

chemistry
In a measurment 0.1M Kmno4 is used.determine the volume of solution required to react with 0.158M Na2s2o3 required?
March 14, 2013 by Abhishek Bhargav

Chemistry
X^2+ + 2e- -> X(s) E=1.73V Y^2+ + 2e- -> Y(s) E=0.40v Which pair of species would react under standard conditions? X^2+ and Y^2+ X and Y^2+ X and Y X^2+ and Y Would it be X and Y because the E is positive?
March 31, 2013 by Anon

Chemistry-Stoichiometry
what is the limiting reactant if 0.10 moles Fe and 0.16 moles O2 react according to the reaction 4Fe +3O2 -> 2Fe2O3?
October 19, 2013 by Barbara

Science
If 50% if reactant is converted to product in first order in 25 minutes.how much of it would react in 100 minutes?
August 8, 2016 by Kinetics

Chemistry
I'm really confused on this question so if someone could show the steps and how to get the answer, that would be great. I understand that you would use delta T=Kbm, but don't know how to use the equation to find the answer. Thanks!! Calculate the boiling point of a solution ...
June 4, 2014 by Serena

Chemistry balancing equations
Translate each of the following reactions into complete balanced chemical equations using international symbols & include states of matter at SATP. Assume pure states of matter unless otherwise indicated. I really need help with this stuff please. 1. The reaction of magnesium ...
December 2, 2011 by Fizzylicous

chemsitry
You have been provided 100mL of a 1000ug/ml barium standard what volume of this standard must be diluted into 50mL of ID water to produce a 30 ug/ml standard ? if you given a full 100mL of the same standard provied calculate the amount of standard and final volume required to ...
January 31, 2010 by Samah

Chemistry
Terephthalic acid is an important chemical used in the manufacture of polyesters and plasticizers. It contains only C, H, and O. Combustion of 19.81 mg terephthalic acid produces 41.98 mg CO2 and 6.45 mg H2O. If 0.262 mol of terephthalic acid has a mass of 43.5 g, determine ...
April 25, 2010 by sean P.

HCT
The data shown below shows the amount in dollars spent on groceries in one day by 30 people. 204 210 227 218 254 256 238 242 253 227 251 243 233 251 241 237 247 211 222 231 218 212 217 227 209 260 230 228 242 200 1 mark a. Is it a continuous or a discrete data? b. Fill in the ...
March 7, 2012 by abeer

Chemistry
is there an equation to find mass percent....if know concentration and and final and initial volume of a titration lab? there isnt one then how do you find mass percent? M x L = mols of titrant. From the equation, convert to mols of unknown. Mols of unknown x molar mass = ...
May 7, 2007 by Natalie

AP Chemistry
An unknown compound contains only the three elements C,H, and O. A pure sample of the compound is analyzed and found to be 65.60 percent C and 9.44 percent H by mass. a.)Determine the empirical formula of the compound. b.)A solution of 1.570 grams of the compound in 16.08 ...
January 5, 2009 by some kid

chemistry
The thermal decomposition of calcium carbonate produces 2 by-products, c02 and calcium oxide. calculate the volume of the co2 produced at STP from the decomposition of 231 grams of caco3. i know the equation i need to use is V=nrt/p but am i supposed to convert the grams to ...
February 18, 2010 by Katherine

chemistry
In the lab, 20.0 g of sodium hydroxide is added to a beaker giving it a total mass of 128.4 g. Sulfuric acid is added until all of the sodium hydroxide reacts. After heating, the total mass of the beaker and the dry compound is 142.3 g. Caculate the percent yeild. 2NaOH + ...
June 13, 2007 by jill

Chemistry
You are preparing 500 mL of a 0.300 M acetate buffer at pH 4.60 using only sodium acetate, 3.00 M HCl, 3.00 M NaOH, and water. Calculate the quantities needed for each of the following steps in the buffer preparation. 1. Add sodium acetate to ~400 mL of water in a large beaker...
February 28, 2012 by Unknown

Chemistry: Dr. Bob, can you check my work?
In the "Methode Champenoise," grape juice is fermented in a wine bottle to produce sparkling wine. The reaction is given below. C6H12O6(aq) 2 C2H5OH(aq) + 2 CO2(g) Fermentation of 712 mL grape juice (density = 1.0 g/cm3) is allowed to take place in a bottle with a total volume...
November 15, 2012 by Zachary

Chem
Ores are analyzed by dissolving some of the ore and then performing an analysis of a metal (expressed in grams); usually the concentration of the metal is expressed as % of the amount of the ore (in grams) dissolved. An ore containing V was dissolved and then titrated with ...
April 7, 2013 by Mariam

Statistics
The weight of a small Starbucks coffee is a normally distributed random variable with a mean of 360 grams and a standard deviation of 9 grams. Find the weight that corresponds to each event. Show your work. a. Highest 10 percent; b. Highest 50 percent; c. highest 5 percent; d...
September 8, 2010 by Shon

science
A force of 20 N gives an object an acceleration of 5m/s^2. (a) What force would be needed to give the same object an acceleration of 1m/s^2? (b) What force be needed to give it an acceleration of 10m/s^2?
February 22, 2013 by jake

algebra
The mass of Neptune is about 1.03x10^23 metric tons. The mass of the sun is about 1.998x10^27 metris tons. About how many times the mass of Neptune is the mass of the sun? Round to the nearest thousandth, if needed use scientific notation. Use the multiplication symbol in the ...
September 1, 2010 by Jackie

algebra
The mass of Neptune is about 1.03x10^23 metric tons. The mass of the sun is about 1.998x10^27 metris tons. About how many times the mass of Neptune is the mass of the sun? Round to the nearest thousandth, if needed use scientific notation. Use the multiplication symbol in the ...
September 2, 2010 by jackie

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