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July 5, 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: 19,990

chemistry
If Tums is added to 55.0 {\rm mL} of 0.750 {\rm M}{\rm HCl}, how many grams of {\rm CO}_{2} gas are produced?
April 23, 2011 by Ivy

Chemistry
What mass of NaCl can be dissolved in 7.50 X 10 (to the 2nd)grams of water at 25 degrees C?
May 3, 2011 by Nick

chemistry
how do you calculate grams of KCL in 3 litres of a 5% solution? (scientific notation)
May 12, 2011 by Denise

science but not really!?
how heavey is a marble (in grams)?please answer quick!!
June 3, 2011 by who wants 2 no?

chemistry 101
How many grams of oxygen are in 40.1 g of calcium hydroxide? options: 17.3 g 8.64 g 20.1 g 0.541 g 11.2 g
July 8, 2011 by ABCD

Chemistry
What is the molarity of a solution containing 40 grams of NaOH in 100 ml of soution
July 13, 2011 by corinna

chemistry
How many grams of KMnO4 should be used to prepare 2.00 L of a 0.500M solution?
July 15, 2011 by ashley

chemistry
How many grams of CuCl2 are required to make 75 mLof a 0.20M solution?
July 15, 2011 by ashley

chemistry
A level teaspoon may contain 4.0 grams of NaHCO3. How many moles does this represent?
July 25, 2011 by michael smith

Organic Chemistry
What are the theoretical moles and grams obtainable when 53.9g of ethanol is dehydrated?
September 7, 2011 by Steven

Organic Chemistry
What are the theoretical moles and grams obtainable when 53.9g of ethanol is dehydrated?
September 7, 2011 by Steven

Organic Chemistry
What are the theoretical moles and grams obtainable when 53.9g of ethanol is dehydrated?
September 7, 2011 by Steven

chemestry
calculate the moles of compound in 0.540 grams of ammonium Bromide
September 24, 2011 by Help!

Chemistry
What volume will 12.0 grams of neon gas occupy at 25 degrees C. and 3.05 atmospheres?
September 25, 2011 by Anonymous

chemistry
How many grams of water should you add to 33.0 of sucrose, , to get a 0.795 solution?
September 25, 2011 by Juliana

Science
if 1.2 g of sodium metal is reacted with 2 mL of H20, how many grams of NaOH will be produced
September 27, 2011 by Philip

science
If a cocolate bar has a mass of 5 grams and a volume of 10cm3 what is its density
October 2, 2011 by DaVionne Robertson

chem
what is the concentration of a solution with 5 grams of HBr dissolved in 2 liters of water?
October 3, 2011 by rick

Science
how much heat is required to change 5 grams of iron to 10c
October 13, 2011 by joe

Chemistry
Calculate the mass ( in grams) of one mole of methane molecules (to .01 g)
November 1, 2011 by Matt

Chemistry
How many grams of C4H10O can be melted by 2.0 x 103 J? Given ÄHfus = 7.27 kJ/mol
November 14, 2011 by Frank

chemistry
How many grams of ammonia can dissolve in 100g of water at 22 degrees celsius?
November 21, 2011 by Sarah

chemistry
If 20.50 grams of calcium chlorate decompose what mass of each product will form
January 19, 2012 by billy

Chemistry
What is the density of a gasoline sample that has a volume of 13.3 mL abd a mass of 8.86 grams?
February 6, 2012 by Lisa

AP CHEMISTRY
Calculate the solubility of Mn(OH)2 in GRAMS PER LITER when buffered at each of the following. a)pH 7.4 b)pH 9.2 c) pH 11.5
March 10, 2012 by JIM

AP CHEMISTRY
Calculate the solubility of Mn(OH)2 in GRAMS PER LITER when buffered at each of the following. a)pH 7.4 b)pH 9.2 c) pH 11.5
March 10, 2012 by fernatesfsdf

Chemistry
How many grams of water are formed when 250 mL of 2.0 M Mg(OH)2 are neutralized by a solution of HCL ?
March 23, 2012 by David

chem help
Calculate the number of grams of solute in 250.0 mL of 0.149 M KOH.
June 5, 2012 by Harlem

Chemistry
How many grams of CaSO4 are present in 320ml of a 0.00810 M solution of this compound?
August 9, 2012 by Jim

Biology
How many grams of NaCl do you need to make 150ml of a 0.8M stock solution?
September 8, 2012 by Keirra

science
what is the density of a piece of wood that has a mass of 85.0 grams and a volume of 100.0 cm 3 ?
September 18, 2012 by justin

chemistry
how many grams of carbon dioxide can be produced by burning 7.04moles of propane
September 21, 2012 by gabrielle

physics
how do you convert 1.75 multiplied 10 to the 6th power grams to ounces? (answers)
September 23, 2012 by balbina

math
How much does Jane pay for 1.75 kg of apples at $0.48 per 100 grams?.
October 9, 2012 by Anonymous

Chem
How many grams of CO2 can be produced when 200 g of C5H12 are reacted with 300 g of O2?
November 6, 2012 by Anonymous

Chemistry
How many grams are in 50.0 mL 2.0 M of HCl? Please help me!!! I think the answer is 3.57g but I am not sure. Thank you :)
November 13, 2012 by Mary

Chemistry105
How many grams of NaCI are therein exactely 25.00 mL of a 0.1053 M solution of the salt?
November 25, 2012 by Kevin

Chem
What is the volume in liters of 48.0 grams of oxygen gas at 0.0 C and a pressure of 760mm Hg?
December 10, 2012 by Ana

Chemistry
How many grams ofPbCl2will dissolve in 2.00 L of O.650M aqueous Pb(N03)2 solution?
December 15, 2012 by Anonymous

chemisrty
how many grams of cai2 are present in 3.28 moles? Can someone explaine how to do this question as well?
January 24, 2013 by omar

Chemistry
What is the density, in grams per liter, of N subscript 2 gas at STP
January 24, 2013 by Michelle

Chemistry
How many molecules are there in 24 grams of FeF3 ? Can somebody please show me how i can get to the answer ? Thank you
January 30, 2013 by Justin

Analytical chemisty
How many grams of K2Cr2O7 are required to prepare 500 ml of a 0.13 N solution?
February 2, 2013 by Anonymous

college chemistry
How many grams would you weigh out to get 3.1 X 10-3 Moles of MgCl2?
February 4, 2013 by Vicky

general chemistry
the radius of a chlorine atom is 99 pm and its mass is 5.89 X 10^-23 grams what is the density
February 6, 2013 by melissa

Chemistry
If you want to make 75 mL of a 0.015 M solution of B(OH)3 in water, how many grams of B(OH)3 would you need?
February 18, 2013 by Margaret

Science
How many grams of NH3 can be produced if 105g of NH4OH are completey decomposed?
March 12, 2013 by Morgan

Chemistry
How many grams of NH3 can be produced if 105g of NH4OH are completey decomposed?
March 12, 2013 by Morgan

Chemistry
How much energy is required to melt and heat 25 grams of ice at 0ºC to 25ºC?
March 13, 2013 by Sarcasticqueen

chemistry
how many grams of KClO3 will dissolve in 1 liter of water at 50 degree celisus ?
March 17, 2013 by Stephanie Diaz

chemistry
Calculate the solubility of Mn(OH)2 in grams per liter when buffered at each of the following. (a) pH 7.7 (b) pH 9.6 (c) pH 11.3
March 27, 2013 by hannah

chemsitry
you start with 150.0g of pentane and 500.0L of O2. how many grams of H2O will you make?
March 29, 2013 by sonya

10th grade chemistry
How many grams of kno3 can be dissolved in 100g of h2o at 50°c
April 11, 2013 by Kimdrick

chemistry
how many grams of carbon dioxide can be produced when 15.g of oxygen is reacted with 25.g of c2h2
May 6, 2013 by maria

Chemistry
636 grams of Na2CO3(s) are disolved in 3.0 liters of aqueous solution
June 14, 2013 by Jane

math
what is the net weight of 36 items that weigh 36 grams each in pounds or ounces
June 18, 2013 by patricia

chemistry
what is the concentration of a 250 ml solution that contains 44 grams of magnesium fluoride
August 21, 2013 by Emily

chemistry
how many grams of oxygen are required to burn completely 570g of octane?
September 1, 2013 by vaishnavi

Chemistry
What is the density of 3.40 Liters of Hydrochloric acid (HCl) that has a mass of 24.5 grams?
September 10, 2013 by Dawn

chemistry
What mass of nitric acid, in grams, can be made from 113g g of ammonia?
September 18, 2013 by keisha

chemistry -lab
what would be the percent yield if 2.2 grams of aspirin is formed?
October 16, 2013 by madellis

Chemistry
How many grams of NaCl are contained in 500ml of normal saline solution which is 0.85%(w/v).
November 2, 2013 by Adigun

chemistry
3H2+N2=2NH3 if 2.70 g of H2 reacts with jugful of N ,how many grams of NH3 is formed?
February 2, 2014 by Anonymous

chemistry
how many grams of sodium oxalate, Na2C2O4, could be obtained from 213 g of C6H6?
February 10, 2014 by hkgdfjtrth

analytical chemistry
How much NaOH (in grams) would there be in 0.25 litre of a 0.3M solution?
February 15, 2014 by MJ

Chemistry
How do I calculate moles from the given litres and mass of the substance (in grams)?
February 23, 2014 by Anonymous

Chemistry
How do I calculate moles from the given litres and mass of the substance (in grams)?
February 23, 2014 by Anonymous

Chemistry
A solution has 189 grams of HNO3 dissolved in 1000L of water. What is pH?
February 26, 2014 by Emma

chemistry
Calculate the amount of CO2 formed when 50 grams of CaCO3 decomposes?
May 2, 2014 by jill

science
1o grams of caster sugar dissolved in 25 degrees long to does it take.
July 20, 2014 by lisa

Chem
After 450 years how many grams of C-14 will remain from a 100.0 g sample
September 21, 2014 by Anonymous

chemistry
How many grams of HCl are formed from reaction of 3.58g of H2 with 8.90g of Cl2?
October 16, 2014 by R

chemistry
Consider the reaction, 4 NH3 + 5 O2 => 4 NO + 6 H2O How many grams of NO will be made from 10.7 moles of O2?
November 16, 2014 by michelle

Chemistry
What is the mass, in grams, of a pure iron cube that has a volume of 4.30 cm3?
February 2, 2015 by Samantha

chemistry
What would be the mass in grams of one million (1.0*10^6) chromium atoms?
March 18, 2015 by sakura

Chem
What mass of KCl in grams is formed when 2.00lbs of KClO3 is decomposed?
April 12, 2015 by Helen

chemistry
calculate the solubility in grams of KCL3(s) per 100 ml of water
May 10, 2015 by emily

Chemistry
A 51.46 mL sample of an ammonia solution is analyzed by titration with HCl. The reaction is given below. NH3(aq) + H+(aq) NH4+(aq) It took 38.57 mL of 0.0984 M HCl to titrate (react completely with) the ammonia. What is the concentration of the original ammonia solution?
October 28, 2010 by Anonymous

Chemistry
1. What does 'the time taken to reach completion decreases if 20cm^3 of hcl containing 4mol/dm^3' means? How to work out to find the concentration? 2(a)What does concentrated hcl means? (b)What does dilute hcl means? Which will react faster or slower / a or b? Thanks sooooo ...
October 30, 2011 by StuartKess

science
To 90.0mL of a solution that contains 0.100M Cr(NO3)2 and 0.490M HNO3 is added 30.0mL of 0.170M K2Cr2O7. The dichromate and chromium(II) ions react to give chromium(III) ions. Write a balanced net ionic equation for the reaction.
December 1, 2012 by it

chemistry
You react 25.0 liters of oxygen gas at STP with 50.0 ml of ethanol liquid. Ethanol has a density of 0.789 g/ml. After actually running the reaction you determined the percent yield was only 78.5%. How many LITERS of CO2 did you make? (Must put CO2 in answer la
May 30, 2014 by Amy

CHEMISTRY
question 1.Explain why fructose and alpha-hydroxyketose reacts with benediict’s solution. what structural arrangement is necessary for the reaction to occur? question 2. When aldose react with Barfoed reagent what type of organic compound forms. What type of chemical reaction ...
April 25, 2015 by SHALOM

Chem
If you start with 3.500 g of ZnSO4 (Zinc Sulfate) & 7 H2O and heat it for 10+ minutes to remove the water of hydration, what will be the mass of water removed? Hint: Since you know the number of grams of hydrated salt present you then know the number of moles. Once you know ...
February 18, 2007 by Angie

science( chem)
For the lab of Determining the % of iron in an iron ore sample The instructions were to: 1) Weigh out btw 0.3-0.4g of iron ore 2) disolve in concent HCl (10ml) and 3ml of 0.25M SnCl2 3) add enough tin so the yellow color disapeared 4) heat until sample decomposes and disolves ...
July 17, 2007 by christina

Chemistry!
a)consider the following reaction: Mg(s)+ 2HCl(aq) --> MgCl2 (aq)+H2 (g) What minimum amount of 1.75 M HCl is necessary to produce 27.5 L of H2 at STP? b) What is the freezing point of an aqueous solution that boils at 102.1 C?
April 26, 2010 by Justin

Chemistry
A commercial for a well known cleaning powder says that it "shakes out white, then turns blue" what type of reaction os occuring? what compound can one use to produce this effect?
November 3, 2010 by Ash

Chemisry
What is the minimum amount of 5.2M H2SO4 necessary to produce 22.8g of H2 (g) according to the following reaction? 2Al(s)+3H2SO4(aq)→Al2(SO4)3(aq)+3H2(g) (Please be precise and clear)
February 11, 2014 by Tyler Jones

Statistics
a procedure in REGRESSION NALYSIS WHERE PREDICTOR OR INDEPENDENT VARIABLES ARE CODED AS 1 OR 0 (REPRESENTING CATEGORIES) AND CAN BE USED TO PRODUCE ANOVA TABLES UNDER THE GENERAL LINEAR MODEL IS KNOWN AS?
April 5, 2014 by Jo

Statistics
A procedure in regression analysis where Predictor or Independent Variables are coded as 1 or 0 (representing categories) and can be used to produce ANOVA Tables under the General Linear Model is known as…?
April 6, 2014 by C

chemistry
This type of functional group is often sweet smelling and may be used as a fragrance. When it reacts with water it will produce a carboxylic acid and an alcohol. I chose ester but it is wrong
May 10, 2014 by bekah

chem
consider the chemical reaction, 2Al + 3Cl2 -> 2AlCl3. here, 212.7 g of chlorine can produce a maximum of 266.66 g of AlCl3 (molar mass of Al = 26.98 g and Cl = 35.45 g) true or false
October 4, 2014 by bekah

College Economics
Hey can someone tell me how to graph this in excel please. Thanks. Produce a chart in Excel showing TC and TR with Q on the horizontal axis. Have Q go from 0 to 15,000 units. Produce a second chart showing MC and MR with Q again on the horizontal axis. Here is the problem for ...
September 16, 2010 by Alexis

chemistry
explain how to set up: what mass of iron(III) carbonate would be produced if 545 ml of 0.150 M iron(III) choloride were added to a solution containing excess sodium carbonate. Given reaction of 2FECL3(aq) + 3Na2CO3(aq)---- Fe2(CO3)3 (s) + 6 NaCl (aq) thank you
July 2, 2011 by Jamie

chemistry step by step thank a lot
Al2(s04)3 solution of a molal concentration is present in 1 litre solution of 2.684g/cc. How many moles of bas04 would be precipitated on adding bacl2 in excess? the answer 6M Who helps me step by step for me clearly I am thankful to all tutors
July 11, 2014 by ken

chemistry
The antacid in question (with an active ingredient of Ca(HCO3)2), upon treatment with excess hydrochloric acid, a 0.413 g sample gives 92.85 mL of CO2 at 25.00oC and 1.000 atm. What percentage of the antacid is active ingredient? Assume a perfect system (i.e. the yield is 100%)
November 1, 2014 by kimberly

8th-g Science: Need help to check answer!!!
Since I will have a science test next week based on these questions but my teacher won't check all answer with the class. I don't want to make a mistake and study to an incorrect answers. Do you mind to check the answers for me so that I am able to see if I got it correct or ...
March 6, 2014 by Cassidy

calculus
A health club offers memberships at the rate of $300, provided that at least 50 people join. For each member in excess of 50, the membership fee will be reduced by $2 for all members. Due to space limitations, at most 125 memberships will be sold. How many membersips should ...
October 22, 2012 by dino

chemistry
How many mL of 0.3 M HCl(aq) are needed to neutralize a 60 mL solution of 0.15 M Ba(OH)2? THe answer please
May 5, 2008 by mo

social studies
give to reasons why african slaves were needed
September 22, 2008 by djuan

History
Why was an entirely new consitution needed according to Publius?
November 15, 2008 by Catie

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