Monday
October 20, 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: 18,292

chemistry
WHAT IS THE VOLUME IN MILLILITERS OF 0.100 SULFURIC ACID CONTAINING 0.949 GRAMS H2SO4
October 23, 2012 by ROBERT

chemistry
50 ml of Argon is collected at 60.0 degree C and 820.0 torr how much this sample weigh in grams?
November 24, 2012 by Andrew78

chemistry
how do i find the grams of potassium chloride per 100g of water in the saturated solution
November 27, 2012 by sam

Chemistry
What volume a sample of 67.0 grams of nitrogen gas (N2)will occupy at -25degrees C and 3 atm pressure?
December 2, 2012 by malina

Chemistry
if 20.00 grams of NaOH are diluted in enough water to make 1.00 liter, what is the molarity of the solution?
December 5, 2012 by Anonymous

pharmacy math
hiow many grams of 2% silver nitrate ointment will deliver 1 g of the active ingredient?
December 7, 2012 by cleondra

CHEM
How many grams of sodium chloride are required to prepare 1.00 liter of a 1.00M NaCl solution?
February 7, 2013 by Lisa

Chemistry
How many grams of HCl need to be dissolved in 0.5L of water to prepare a solution of pH 1.5? Does anybody know how to work this out? Thanks :)
February 13, 2013 by Matt

Chemistry
How many grams of HCl need to be dissolved in 0.5L of water to prepare a solution of pH 1.5? Does anybody know how to work this out? Thanks :)
February 13, 2013 by Matt

chemistry
how many grams of copper can be heated from 21.5 c to 35.4 c by the heat energy released when 245 g of aluminum cools from 80.5 c to 49.8 c
February 20, 2013 by Kevbot

chemistry
How many grams of ammonium fluoride are required to neutralize 972 'm of 0.00327 M sulfuric acid
February 27, 2013 by caleb

Physical Science
How do you calculate the number of grams of ice at 32 degrees celsius that can be melted by 1g of steam?
March 11, 2013 by Bella

math
six hundred and thirty miligrams is equal to how many grams? a) 0.063 g b) 0.63 g c)63 g d) 630,000 g
March 12, 2013 by mary

Chemistry
How much energy would be released when 675 grams of steam is condensed to water
April 11, 2013 by Ashley

Organic Chemistry
A student dehydrated 12 grams of 2-methylcyclohexene with 85% H3PO4. What are the theoretical and percent yields?
April 22, 2013 by Josh

Organic Chemistry
A student dehydrated 12 grams of 2-methylcyclohexene with 85% H3PO4. What are the theoretical and percent yields?
April 22, 2013 by Josh

Chemistry
Calculate the solubility of CuSO4 5H2O at 0 C in grams of solute per 100 g water.
April 30, 2013 by Breanna

Chemistry
Calculate the solubility of CuSO4 5H2O at 0 C in grams of solute per 100 g water.
April 30, 2013 by Breanna

physics
2. Determine the theoretical yield of aspirin if you started with 2.500 grams of salicylic acid?
May 3, 2013 by Anonymous

Chemistry
How much water, in grams, can be made from 6.82 1024 hydrogen molecules? Answer in units of g
May 13, 2013 by Anonymous

chemistry
How many grams of carbon dioxide will form if 4.4 g of propane reacts with 16.0 g of oxygen producing 7.2 g of water?
May 20, 2013 by Ron

chemistry
How much carbon dioxide gas is there in a 34.3 L container at 34.0◦C and 5.49 atm? answer in grams
June 9, 2013 by tyler

chemistry
If 6 moles 735 of KCLO3 were used,what weight of oxygen in grams would obtained?
August 27, 2013 by jean reizel

Chemistry
How many grams of sodium sulphate (mol. wt. 142) are required to make 1.2 liters of 0.5N solution
September 19, 2013 by Frank

Chemistry
Calculate the mass in grams of 0.0086 mol of xenon (show the steps please)
November 6, 2013 by Anonymous

chemistry
What is the mass of a small car in grams if its de Broglie wavelength is 4.198e-38 m when it is traveling at a velocity of 11.84 m/s ?
November 10, 2013 by arshi

Chemistry
What is the mass of a fly in grams if its de Broglie wavelength is 1.545e-31 m when it is traveling at a velocity of 3.605 m/s
November 10, 2013 by Andy

chemistry
How many moles of protons are present in 7.54 grams of Rubidium? Report your answer to 3 significant figures.
January 17, 2014 by kyle

Chemistry
If 2.5 grams of citric acid (H3C6H5O7) reacts, how many moles of sodium bicarbonate will be consumed?
March 5, 2014 by anonymous

Chemistry
If 2.5 grams of citric acid (H3C6H5O7) reacts, how many moles of carbon dioxide will be generated?
March 5, 2014 by anonymous

Business and Economics
The weights (in grams) of the contents of several small bottles are 8, 4, 3, 6, 7, 1 and 5. What is the sample variance? 5.81 4.33 5.67 2.22
March 27, 2014 by Anonymous

Chemistry
Calculate the Molarity of the solution that contains 43.5 grams of K2SO4 in a total volume of 250ml.
May 7, 2014 by Felicia

Chemistry
A solution of KCI is saturated at 50 degrees C. How many grams of solute are dissolved in 100g of water?
June 19, 2014 by Anonymous

Chem
How much methane, in grams, must be burned to release 542 kJ of heat? H=-802kJ
June 26, 2014 by Luke

Chemistry
5.0 grams of solid Ce2(SO4)3 was added to 100 mL of water. What is the total mass?
September 25, 2014 by Luc

Science
The force of 100dynes acts on a mass of 50 grams for 10 seconds. Find the change in moentum
September 26, 2014 by Jeyanthi

Chemistry/Math
convert 0.01403 grams to ppm please show all step
October 1, 2014 by Hasaan

math
You have a box which contains only red marbles and blue marbles. The mass of one red marble is 16 grams, while the mass of one blue marble is 20 grams. If the box contains 21 red marbles and 18 blue marbles, what is the total mass of the marbles in the box?
September 5, 2014 by Abdul

chemistry
how do i write a net ionic equation for Lead (II) Nitrate and Sodium Carbonate react to form Lead Carbonate and Sodium Nitrate??
December 11, 2007 by caren

Chemistry
What volume of 3.0M Na2SO4 must be added to 25ml of 1.0M BaCl2 to produce 5.0g of BaSO4? The answer is 7.1ml but I don't get it very well. I thought I could use mole ratio of the balanced equation, but it did not work. Thanks a lot!
September 19, 2008 by Andrew

Chemistry
If a hydrate of the formula MCl * xH2O decomposes when heated to produce HCL, what change would you expect to occur when a piece of litmus paper is held in the path of the vapor released?
October 14, 2008 by Chloe

Genetics
Phenylketonuria is a metabolic disease of humans that results from an autosomal recessive gene. If the frequency of phenylketonurics in the population is 9/10,000, what is the probability that two normal individuals will produce a diseased child?
November 13, 2008 by Keira

History
not sure how did England's preoccupation with its civil war affect the colonies? they were forced to support the king they were left alone they developed ties to France they started to produce manufactured goods ?
February 21, 2009 by Bella

Chemistry
calculate the concentration of sodium benzoate that must be present in a 2.0M solution of benzoic acid (C6H5COOH) to produce a pH of 4.00. THIS IS THE ONLY INFORMATION GIVEN. I CANNOT FIND Kb ANY WHERE IN MY TEXT NOR DOES IT GIVE US A VOLUME. CAN ANYONE HELP?
May 27, 2010 by Lucinda

Biology
What is the name given to the types of organisms that exclusively use aerobic cellular respiration to break down glucuse to produce ATP for energy? Provide three specific examples
August 31, 2010 by Bill

physics
A rocket blasts off vertically from rest on the launch pad with an upward acceleration of 2.80 . At 30.0 after blastoff, the engines suddenly fail, which means that the force they produce instantly stops.
October 5, 2011 by mandy

chemistry
find the average molar mass of polyethylene when 4.40 g of the polymer is dissolved in benzene to produce 200.0 mL of solution and the osmotic pressure is found to be7.60 torr ant 25 celcious Degree.
April 2, 2012 by Anonymous

Psychology
Electroconvulsive therapy may produce immediate relief from depression, but: A. may result in schizophrenia. B. can also change the hemisphericity of the brain. C. is not a long-term improvement. D. should not be used more than once. B
August 8, 2013 by Angela

Psychology
lectroconvulsive therapy may produce immediate relief from depression, but: A. may result in schizophrenia. B. can also change the hemisphericity of the brain. C. is not a long-term improvement. D. should not be used more than once. B
August 9, 2013 by Angela

Chemistry URGENT
I need help balancing a equation for the combustion of cellulose in oxygen to produce carbon dioxide and water vapor. C6H10O5 = 6CO +5H2O I know this is not correct but I don't know what else to do to get this to balance. Thanking you in advance.
March 27, 2014 by linda

Health
In addition to causing hallucinations, some hallucinogens also produce ________. A. Rapid, intense emotional swings B. Promiscuity in women C. Animalistic behavior D. All of the above My guess is A.
August 18, 2014 by Scarlett

Social Studies
Which of the following reasons made Oglethorpe recruit the Highland Scots? A. their clan colors B. The were good soldiers and fighters C. The knew how to produce silk D. They brought stronger cattle with them Is it C?
September 22, 2014 by Amber

Chemistry
How many moles of hydrogen gas are required to react completely with 807 L of ethylene (C2H4) according to the following reaction at 0oC and 1 atm? hydrogen (g) + ethylene (C2H4) (g)---> ethane (C2H6) (g) Should I use the ideal gas law here?
April 25, 2012 by Mohamed

Chemistry
Calculate the amount of energy released per gram of nuclei when 2 protium nuclei react to form deuterium nucleus (protium = 1.00782 amu, deuterium = 2.01410 amu). The answer in the book is -2.0 x 10^10 J, but I don't have any idea on how to do this. Please help, and thank you ...
March 15, 2014 by Nina

chemistry
calculate the mass of sodium hydroxide needed to prepare 500 mL of a 0.10 M solution.
October 14, 2007 by Rebecca

physical science
How much force is needed to accelerate a 50-kg rider and her 250-kg motorcycle at 5 m/s2?
November 19, 2007 by david

health
What are some of the reasons dietary modifications may be needed in different life stages
February 4, 2008 by will

forces
what is the measure of the amount of force needed to move an object a certain distance?
February 24, 2008 by cn

ict
please could someone help i need to give 4 answers . what is needed to access the internet? thanks
September 15, 2008 by zoe

Science
What type of education is needed in order to become a Diagnostic Medical Sonographer?
September 20, 2008 by Mariz

Chemistry
What volume of 4.5 M Acetic Acid is needed to neutralize 567.4 g sodium carbonate? ?
September 25, 2008 by Kaitlin Webb

help needed
i am making a bookcover related to the history of measurement can you help me give the title please......thank you
October 23, 2008 by Anonymous

Chemistry
How many moles of each of the following are needed to provide 1.0 osmol? a)CaBr2 b)NaOH c)Al(NO3)3
November 5, 2008 by Monica

Algebra
How do you do the quadratic equation when there are only two numbers, such as -5x and 15, not the three needed?
November 19, 2008 by Eliza

science - help needed
What drives the motor in a roller coaster? Is it electromagnetic force or electricity?
February 14, 2009 by jess

math
7. How many hours of jogging at 5 mi/h would be needed for a 200-lb person to lose 5 pounds?
September 16, 2009 by Laci

Socials*
why was the Charles I, the king forced to recall Parlament? My answer is Because he needed money
September 25, 2009 by sara

biology
sorry but what is the sequece of cellular respiration what you gave me is right just not what i needed
December 2, 2009 by angelica

Algebra
|a+2 3z+1 5m|+|3a 2z 5m|=|10 -14 80| |4k 0 3 | |2k 5 6| |10 5 9| I needed to repost this. This is a matrice and I am trying to find the values of the variables in each equation.
December 17, 2009 by mike

chemistry
How many milliliters of 0.155 M HCl are needed to neutralize completely 35.0 mL of 0.101 M Ba(OH)2 solution?
January 11, 2010 by jennifer

Science
wht's needed 4 nuclear fusion to start? Hydrogen nuclie fuse?
February 23, 2010 by Sara

Science
wht's needed 4 nuclear fusion to start? all the 8 protons of energy?
February 23, 2010 by Sara

Chemistry
How many moles of Cacl are needed to be dissolved in .500g of H2O to form a 1.5m solution?
March 24, 2010 by Ty

math
how much fencing is needed to close a circular garden whose radius is 4.5
April 15, 2010 by Aaliyah

Calculus
If f(x) = (e^(x))sin(x) what is the 1000th derivative? Step are needed and the general rule/pattern
April 17, 2010 by Fred

chemistry
find the mass of solute needed. 3.0 liters of 2.0 M NaOH. or 500ml of 1.5 M NaCl?
April 20, 2010 by joseph

math
to make 5 sets of curtains when eachset requires 2 1/3 yards how many of material are needed?
May 10, 2010 by michael

chemistry
How much concentrated 12 M hydrochloric acid is needed to prepare 100.0 mL of a 2.0 M solution?
May 11, 2010 by {RayRay} NEED HELP PLZ

chemistry
how much energy would be needed to warm 7.40 g of water by 55 degrees celcius
May 11, 2010 by lisa

4th grade
how many jets would be needed to carry the passengers on 264 buses
June 1, 2010 by dashawn

Chemistry
What volume of 0.123 M AgNO3(aq) is needed to form 0.657 g of AgCl(s)? 0.564 mL. 18.6 mL. 37.2 mL. 1.77 L.
June 12, 2010 by Kelly

college math213
place parentheses, if needed, to make each of the following equations true: a.5+6.3=33 b.8+7-3=12 c.6+8-2/2=13 d.9+6/3=5
July 27, 2010 by fiona

engineering of science
What mass of oxygen is needed for the complete combustion of 8.9010−3 of methane?
October 2, 2010 by Eric

Chemistry
How many milliliters of 0.135 M HCl are needed to completely neutralize 56.0 mL of 0.101 M Ba(OH)2 solution?
October 7, 2010 by Veronica

principles of chenistry
What mass of calcuim chloride is needed to prepare 3.650L of 1.75 M solution?
October 16, 2010 by 0karla

Chemistry
How many milliliters of 6.0 M HCl would be needed if 3.000 g of K2CO3 were used in an experiment?
October 17, 2010 by Amber

physics
spring has k=82 N/m use a graph to determine the work needed to stretch it from x= 3.8 cm to x=6.2 cm where x is the displacement
October 20, 2010 by brie

Physics Help!!!
With the energy needed to warm up some amount of water from 26C to 44C, how high could you lift it?
November 8, 2010 by Molly

physics
What force is needed to accelerate a child on a sled with the total mass of 43kg at 1.5m/s
November 30, 2010 by karen

chemestry
given 43 moles of KCl how much HNO3 is needed to complet the reaction
December 8, 2010 by juan

Cal 1
Find the most general antiderivative of the function. Use C for any needed constant. f(x) = x - 6
December 8, 2010 by Tweak

Physics
How much time is needed for 5.0 N force to increase the speed of a 0.248 kg object from 12 m/s to 56 m/s?
January 6, 2011 by Maya

math
To make 5 sets of curtains, when each set requires 2'1/3 yards, how many of material are needed ?
January 18, 2011 by kim

ap chemistry
What minimum volume of .2M Na2CO3 is needed to precipitate all the Sr 2+ from 25mL of .1M Sr(NO3)2
January 19, 2011 by syd

chem
what mass of KIO3 is needed to convert the copper in 0.2 g of CuSO4 5H20 to Cu(IO3)2
January 21, 2011 by midget

physical
what is the minimum length of the mirror needed to view the whole body at any distance?
February 3, 2011 by ivy

physics
Calculate the net force needed to give an acceleration of 0,5m/s to a trolley with a mass of 1,5 kg
February 8, 2011 by Ephrime

organic bio chemistry
how many mL of a 0.20M KOH solution is needed to neutralize 25 mL of 0.25 M H2SO4?
March 8, 2011 by lisa

maths-urgently needed
Construct a triangle PQR with base PQ = 8.4 cm , angel P = 45 degree and PR - QR = 2.8 cm ??
January 23, 2013 by Anonymous

chemistry
How many mL of 5.00% (w/v) solution are needed to make 100mL of physiologic saline (0.90%(w/v) sodium chloride)?
March 17, 2011 by bob

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