Monday
December 22, 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: 18,821

Chemistry
I needed what Cr the metal is soluble and insoluble in and inks was supposed to be links.
October 14, 2009 by Anonymous

Chemistry
What volume of 0.130 M NaOH is needed to neutralize 4.00 g of benzoic acid?
November 20, 2009 by Anonymous

chemistry
How many moles of O2 are needed to combine with 0.646 mol Al to give Al2O3?
March 12, 2010 by khin

chemistry
How many moles of O2 are needed to combine with 0.646 mol Al to give Al2O3?
March 12, 2010 by khin

chemistry
How many moles of O2 are needed to combine with 0.288 mol Al to give Al2O3?
March 15, 2010 by .

chemistry
How many kilojoules are needed to vaporize 3.00 liter of ethanol at 78 degree celcieus?
April 9, 2010 by Jeanette

chemistry
How many mL of 0.750 M HCl are needed to neutralize 14.89 mL of 0.350 M NaOH? ____ mL
May 5, 2010 by ashlee

chemistry
what volume of HCl gas is needed to neutralise 50 ml of 0.1M NaOH at stp?
May 20, 2010 by boond

Chemistry
How many calories of heat are needed to raise 10 g water from 20 to 21 degree celcius
July 22, 2010 by Megan

physics
a spacecraft has an acceleration of magnitudes 5.0g what distance is needed for it to attach a velocity of 10 km/s?
August 8, 2010 by jether

chemistry
Home many drops of 0.1M HCl is needed to neutralize 10mL of 1M NaOH?
August 14, 2010 by georgia

college chemitsry
calculate the calories needed at 0 C to melt 200. g of ice
September 8, 2010 by Amanda

physics
What force is needed to accelerate a child on a sled (total mass = 65.0 kg) at 1.75 m/s^2
October 11, 2010 by Katie

Physics
How do you calculate the energy needed to heat 4 kg of water from 25oC to 45oC?
November 5, 2010 by Angel

Chemistry
How many calories would be needed to convert 8.0g of ice at 0C to steam at 100C?
November 9, 2010 by Amber

science- chemistry
How much energy in kilojoules is needed to heat 5.00 g of ice from -10.0 C to 30.0 C ?
December 7, 2010 by allie

SOCIAL STUDIES
What qualifications are needed for a country to become a world power?
December 9, 2010 by Matt

us history
what would teddy roosevelt put in a time capsule if needed to?
December 12, 2010 by matthew

Science
how much force is needed to accelerate a 68 kg-skier at a rate of 1.2 m/sec sq
January 13, 2011 by Morgan

science
What net force is needed to accelerate a 25kg cart at 14m/s2?
January 19, 2011 by ton

deer hunting
how many feet of fence needed to enclose 6000 acres
January 25, 2011 by Rema

Science
Calculate the Mass of C6H12O6 needed ot generate 2575 KJ of energy
February 10, 2011 by Thomas

chemistry
Calculate the volume needed to dissolve 11.2g CuSO4 to prepare 0.140M?
March 9, 2011 by cris

Chemistry
How much sodium carbonate is needed to precipitate nickel sulfate
March 24, 2011 by Hal

grammar
what are the parts of speech in this sentence, "they decided the hedge needed a trim."
September 7, 2011 by Anonymous

chem
NaC3H5O3 is needed to create 1000mL volume of ringers lactate with 6.5 ph
September 11, 2011 by debra

chemistry
how many milliliters of concentrated NaOH(19.3 M) are needed to make 8.00 L of 0.25 M base solution?
October 20, 2011 by HElp

Science
Calulate the force needed to accelerate a 2,300 kg mass at 5.5m/s/s acceleration.
November 7, 2011 by Brenda

Math
How many .5 cm x.5 cm x .5 cm cubes are needed to completely fill a rectangular prism measuring 4 cm x 4 cm x 4 cm?
November 27, 2011 by Anonymous

Math
How many .5 cm x.5 cm x .5 cm cubes are needed to completely fill a rectangular prism measuring 4 cm x 3 cm x 3 cm?
November 27, 2011 by Anonymous

math
How many years will be needed for 3000 to grow to 5000 at 4.5% compounded monthly
December 8, 2011 by lg

Physics
What force would be needed to accelerate a 0.040-kg golf ball at 20.0 m/s^2??
December 14, 2011 by Amber

Maths
How many points would there be if you needed to draw a 21 lined mystic rose
December 30, 2011 by Sarah

science
force needed to pull a box of 500b across the table
January 18, 2012 by pratibha

chemistry
What mass of oxygen is needed for the complete combustion of 2.5010−3 of methane?
February 7, 2012 by ASh

Chemistry
What mass of KH2PO4 is needed to prepare 500.0 mL of a 0.067M solution?
February 9, 2012 by John

networking
In an analog cellular structure, what is needed to establish a valid authentication?
February 13, 2012 by Joe

accounting
When a merchandiser sells on account, which of the following is not needed to record the transaction?
February 28, 2012 by Michelle

physics
What net force is needed to accelerate a 1.6 103kg automobile forward at 2.0 m/s2?
March 6, 2012 by madison powell

Chemistry
What volume of 3.0M sodium hydroxide will be needed to neutralize 2.0 L of 1.0M hydrochloric acid?
March 21, 2012 by Laurie

Chemistry
How many mL of .175M H3PO4 are needed to neutralize 15.00mL of .33M NaOH?
April 8, 2012 by Sam

Pre-Calculus
How many terms of the series -6+0+6+12+... are needed to yield a sum of 324?
April 26, 2012 by Sangita

Pre-Calculus
How many terms of the series 12+4+4/3+4/9+..., are needed to yield a sum of 1459/81?
April 28, 2012 by Sangita

Chemistry
If a plant produces 8.06 mol of C6H12O6 how many moles of CO2 are needed
June 12, 2012 by Yolanda

science
How much force is needed to give a 5-kg box and upward acceleration of 2 m/s2?
July 5, 2012 by sara

AP Chemistry
how many milliliters of 0.125 M H2SO4 are needed to neutralize 0.200 g of NaOH?
September 2, 2012 by Cassie

science
What force is needed to move a 200.00 neuton chair 1.7 meter?
September 29, 2012 by Kelsy

meth
how many equal line segments are needed to make a row of 25 triangles
October 29, 2012 by Anonymous

Math perimeter
How many inches of matting are needed to frame an 8in by 11 in print? 38?
November 7, 2012 by Lance

chemistry
calculate the mass of naso4 needed to prepare of 0.5L of 0.15M of solution
November 14, 2012 by elissa

English
the rest of the vocab from November 12 please needed right now
December 12, 2012 by Maliha

Math
How many fencing materials will be needed if the measurements of the sides of the lot to be fenced are 37.5m and 24.8m?
January 16, 2013 by Anonymous

Math
How many fencing materials will be needed if the measurements of the sides of the lot to be fenced are 37.5m and 24.8m?
January 16, 2013 by Anonymous

fin/370
What information is needed in order to prepare a cash budget
January 17, 2013 by Anonymous

Maths
They were 336 people at a concert.if 2/3 were childre,how many chairs were needed for the adults?
February 12, 2013 by Siphosethu

Math
steps needed to solve one step mixed number g+9 3/4=15 1/2
March 15, 2013 by kalob Barnes

Chemistry
calculate the volume of 0.50 M NaOH needed to saturate 100.0 ml of 0.50 M Zn(NO3)2 with Zn(OH)2
March 24, 2013 by Ale

Chemistry
calculate the volume of 0.50 M NaOH needed to saturate 100.0 ml of 0.50 M Zn(NO3)2 with Zn(OH)2
March 24, 2013 by Ale

math
How many balls of clay and straws are needed to make a hexagonal pyramid?
March 25, 2013 by Victoria

chemistry
How many mL of 0.100M HCl are needed to neutralize 49.0mL of 0.104M Ba(OH)2 solution?
April 19, 2013 by Rochele

america government
precedent, while not absolute constraint on the courts,is needed
July 9, 2013 by Anonymous

Chemistry 12
Calculate the mass of K2CRO4 needed to make 3.00 L of a 0.0200 M solution.
October 8, 2013 by Riann

chemistry
What mass of oxygen is needed for the complete combustion of 5.0010−3g of methane?
October 14, 2013 by kristy

Math
Form 1 1/2 circles using only 1/4s. How many 1/4 pieces are needed to make 1 1/2?
October 27, 2013 by Sandy

Science
How much force is needed to make a 60 kg object accelerate at a rate of 2.0 m/s^2?
October 29, 2013 by AshKay

chem school
calculate the volume of 2.04 m al l oh 3 needed to neutralize 22.0 ml of 880m h2so4
June 24, 2014 by Ali

chemistry
How many milliliters of NO2 at 25.2 C and 738 torr are needed to form 16.1 g of HNO3?
July 4, 2014 by kelly

Chemistry
What mass KCl is needed to precipitate AgCl from 15.0 mL of .200 M AgNO3
October 20, 2014 by Skye

chemistry
how many milliliters of10.0m Hc(aq) are needed to prepare 890.0 ml of 1.00m Hcl(aq)
November 2, 2014 by lisa

physics
what impulse is needed to slow a 45kg object from 15m/s to 12m/s?
December 6, 2014 by john

English
Posted by rfvv on Tuesday, August 30, 2011 at 7:35pm. 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 ...
September 1, 2011 by rfvv

History
Why did the institution of slavery develop in Africa? a. Africa had too many people b. Slaves were valued as goods to be sold and traded c. European traders introduced slavery to West Africa d. Africa had an excess of land and a shortage of labor A
February 20, 2009 by Bella

chemistry
Naturally occuring chlorine gas has 3 isotopes 35cl-35cl, 35cl-37cl , 37cl-37cl a) mass of one molecule in terms of amu. b) mass of one molecule in terms of grams. c) mass of one mole in terms of grams. d) Naturally occuring Cl has 75% 35cl and 25% 37cl, calculate the mass of ...
September 6, 2010 by Jake

chemistry
Naturally occuring chlorine gas has 3 isotopes 35cl-35cl, 35cl-37cl , 37cl-37cl a) mass of one molecule in terms of amu. b) mass of one molecule in terms of grams. c) mass of one mole in terms of grams. d) Naturally occuring Cl has 75% 35cl and 25% 37cl, calculate the mass of ...
September 6, 2010 by Jake

Algebra 2
Income tax for some states is computed by taking 3% of the excess income over $3,000 plus 1% of the first $3,000. How much tax is charged on a income of $2,000?
January 24, 2007 by Bryan

chemistry
A catalyst alters the rate of a reaction by a. changing the products in the reaction. b. increasing the activation for the reaction. c. always providing a surface on which the molecules react. d. providing an alternate pathway for the reaction. e. increasing the concentrations...
February 24, 2012 by bob

Chemistry
When sulfuric acid reacts with ammonia solution an ammonium salt and water are produced. Calculate the volume of 3mol/dm3 of acid required to react exactly with 25ml of a 2.5mol/dm3 of ammonia solution.
June 5, 2012 by Jeconiah

Chemistry
C2H6(g) + O2(g) CO2(g) + H2O(g) (a) Consider the unbalanced equation above. What is the maximum mass of CO2 that can be produced when 21.0 g of C2H6 and 38.5 g O2 react? (b) If 24.7 g of carbon dioxide is actually produced by the reaction in part (a), what is the percent yield...
October 7, 2013 by Connor

math
1.64g of a mixture of cac03 and mgc03 was dissolved in 50ml of 0.8M hcl. The excess of acid required 16ml of 0.25M naoh for neutralization. Calculate the percentage of cac03 and mgc03 in the sample The answer 52.02% mgc03 caco 47.98% Bob helps me step by step Thank you
December 8, 2013 by Fai

chemistry
The first step in the Ostwald process for making nitric acid is the formation of NO as follows; 4HN3 + 5O2 makes 4NO + 6 H2O. According to the equation, 5 moles of NH3 will react stoichiometrically with blank moles of O2 to form blank moles of NO. I can't figure out how to ...
October 19, 2010 by lavonne

Physics
Both drawings show the same square, each of which has a side of length L=0.75 m. An observer O is stationed at one corner of each square. Two loudspeakers are locate at corners of the square, as in either drawing 1 or drawing 2. The speakers produce the same single-frequency ...
July 9, 2013 by Vivien

chem
Hint: Remember that reactions happen in moles. So figure out the moles that reacted then use the molarity formula to continue solving the problem. What volume of 0.699 M K3PO4 is required to react with 68 mL of 0.661 MMgCl2 accord- ing to the equation 2K3PO4 + 3MgCl2 ! Mg3(PO4...
September 5, 2012 by John

Computer
How do you solve this algorithm problem? Suppose that you are given a sequence of n elements to sort. The input sequence consists of n/k subsequences, each containing k elements. The elements in a given subsequence are all smaller than the elements in the succeeding ...
October 8, 2013 by Jeremy

Chemistry
Rolaids once ran a national advertising campaign in which it claimed that Rolaids consumes 47times its own weight of excess stomach acid. Can this be true. (Assume that stomach acid is .100M HCl and that its density is 1g/ml. I have no idea how to go about this problem could ...
April 1, 2010 by Anonymous

Chemistry
If 325mL of a 0.58 M solution of a propanoic acid (a fatty acid) was mixed with excess glycerol what is, the maximum number of molecules of fat or oil that could result?(you will need Avogadros number = 6.022 X 10 to the 23rd power)....I need to show all work and im completely...
December 3, 2014 by Jennifer

Social Studies
how would voters most likely react if political leaders raised taxes by 50% ? A. they would not make any changes in their behavior. B. They would demand more public goods and services. C. They would stop voting in elections. D. They would not re-elect the leaders. i think A.
September 11, 2014 by chris w

Socials
Imagine that you are a factory owner in eighteenth-century britain. Write a letter from an employer's point of view to a friend explaining why you think child labour is important to the economy and why it is undesirable to improve working conditions. Dear....... Child labour ...
November 29, 2009 by Sara

computer
The following RAM chips are specified by the number of words times the number of bits per word. For each, specify: a. The number of address lines needed for each memory chip b. The number of data lines needed for each memory chip c. The number of bytes that can be stored in ...
March 26, 2011 by bode

chemistry
H2(g) + Cl2(g) HCl(g) Consider the unbalanced equation above. 3.95 L of H2 and 1.00 L of Cl2 are reacted under the same conditions of temperature and pressure. (a) How many liters of HCl will be produced? (b) How many liters of reactant are in excess? i found part a to be 2.00...
October 20, 2014 by olivia

chemistry
Iron reacts with chlorine to form iron(iii)chloride. A)How many chlorines react with 1.86g of iron? B)What mass of iron(iii)chloride is produced?
October 23, 2013 by Ava

Science ~conversions~
On my physics home work i have a question that puts the weight in grams, and i need to find the acceleration. I know that the formula is F=ma, and Force is in newtons, mass is in kg and acceleration is in m/s^2. but can you still find the acceleration by using grams with out ...
December 5, 2012 by Maggie

Chemistry Help!!
Types of Reactions Worksheet Balance the following equations and indicate the type of reaction taking place: 1) 2 NH3 + 3 I2  N2I6 + 3 H2 Type of reaction: ____________________ 2) 3 Ca(OH)2 + Al2(SO4)3  3 Ca(SO4) + 2 Al(OH)3 Type of reaction: ...
December 8, 2014 by Theresa

Chemistry
This question was posted: At 22 C an excess amount of a generic metal hydroxide M(OH)2, is mixed with pure water. The resulting equilibrium solution has a pH of 10.56. What is the Ksp of the compound at 22 C? I have found my [OH-] concentration (3.63x10^-4) but I am looking ...
July 8, 2012 by jen

Physics
In a Milliken type experiment, two horizontal parallel plates are 1.0 cm apart. A sphere of mass 2.2 x 10^(-13) kg remains stationary when the potential difference between the plates is 350V with the upper plate is negative. How much excess or deficit of electrons does the ...
July 23, 2012 by KnowsNothing

Chemistry
Silver ion reacts with excess CN- to form a colorless complex ion,Ag(CN)2 , which has a formation constant Kf = 3.0*10^20 . Calculate the concentration of [Ag] in a solution prepared by mixing equal volumes of 1.810−3m NaNO3 and 0.20M NaCN. When I did the problem which ...
April 7, 2011 by Kris

chemistry
*The Nernst Equation and pH* Sulfuric acid is a very strong acid that can act as an oxidizing agent at high concentrations (low pH). Under standard conditions, sulfuric acid has a low reduction potential, SO4^2-(aq) + 4H^+(aq) + 2e^- <=> SO2(g) + 2H2O(l),.....+0.20V ...
March 31, 2010 by Sarah

science
can someone edit my lab report please? Here it is Purpose: The purpose of this experiment was to distinguish six substances observing how they react in fluids and to identify them by their properties. My hypothesis by the end of this experiment, I will discover what the ...
September 20, 2006 by the shadow

Chemistry - Science
A fuel cell designed to react grain alcohol with oxygen has the following net reaction: C2H5OH(l) + 3O2(g) → 2CO2(g) + 3H2O(l) The maximum work that 1 mol of alcohol can yield by this process is 1320 kJ. What is the theoretical maximum voltage this cell can achieve?
May 3, 2014 by Ana

chemistry
How many grams of C6H12O6 need to be dissolved in 350g of water vto have a solution which freezes at -2.50 degrees celcius? delta T = Kf*m You know Kf, m = molality = mols/kg and mols = grams/molar mass, delta T is 2.50. Solve for grams. Post your work if you get stuck. what ...
May 31, 2007 by jessica

physics please help
The femur is a bone in the leg whose minimum cross-sectional area is about 3.60 10-4 m2. A compressional force in excess of 6.90 104 N will fracture this bone. (a) Find the maximum stress that this bone can withstand. (b) What is the strain that exists under a maximum-stress ...
November 14, 2010 by dan

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