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August 31, 2015

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Number of results: 20,257

chemistry
Calculate q in J when 2.02 g of ice is cooled from -22.6C to -73.8C (cice = 2.087 J/gK). Do not add units to your answer.
October 12, 2009 by Sheena

chemistry
A laboratory test tube is 12.5 cm long and 2.50 cm in diameter. Calculate the volume of the capacity in mL
October 21, 2009 by **steph**

physics 8th grade
If a woman hasa mass of 50 kg calculate her weight in neutons
October 28, 2009 by jim

physics
how do you calculate the frequency of a 2.500 m long pendulum in Quito, Ecuador, where g= 9.780 m/s^2
November 30, 2009 by abbigail

university of phoenix
describe other measurements sociologists use to calculate prejudice
December 18, 2009 by lori

Math
A triangle has side lengths of 172m, 155m, and 200m. calculate the area.
January 10, 2010 by Becka

science
calculate the force it would take to accelerate a 650-kg vehicle at a rate of 3 m/s2.
January 25, 2010 by poohbear

Statistics
Formula used to calculate confidence interval..please give example. Thanks
January 26, 2010 by Bryant

chemistry
Calculate the mass of water produced from the reaction of 24.0 g of H2 and 160.0 g of O2. What is the limiting reagent?
January 26, 2010 by tonette

chemsitry
calculate the work done when 50.0 g of tin dissolves in excess acid at 1.00 atm and 25c
February 14, 2010 by Anonymous

Chemistry
How do i calculate the amount of heat required to raise the temperature of an 89 sample of water from 40 to 60.
February 20, 2010 by Kesha

physics
newyorks 33-m tower oscilatesnin the wind with a period of 6.80s calculate the frequency
February 21, 2010 by aa

chem
Calculate the pH of the following salt solutions? 0.1 M HBr 0.1 M CaI2 0.1 BaF2 Kb (F-)=1.4x10^-11
March 1, 2010 by simi

Econ
How do you calculate the growth rate of real GDP between two years?
March 5, 2010 by Rach

Economics
How do you calculate the growth rate of real GDP between two years?
March 5, 2010 by Rach

Chemistry
Calculate the pOH and pH at 298K of soloutions having the following ion concentrations A.[OH-] = 1.0 X 10^-12 B.[OH-] = 1.3 X 10^-2
March 8, 2010 by Anonymous

Chemistry
Calculate the pOH and pH at 298K of solutions having the following ion concentrations A.[OH-] = 1.0 X 10^-12 B.[OH-] = 1.3 X 10^-2
March 8, 2010 by Anonymous

Chemistry
Calculate the [h3o+] of the following polyprotic acid solution: 0.135 M H2CO3
March 25, 2010 by Krysten

chemistry
how do we calculate bond order of a molecule that has 3 different elements, like for example C-N-O
April 8, 2010 by phys

chemistry
Calculate the number of mL you would use to prepare 5.0 L of 0.20 M NaOH from a 5.23 M stock solution.
April 26, 2010 by laney

Chemistry
Calculate the density of carbon dioxide gas at 253K and 648 torr.
May 2, 2010 by Anonymous

Physics
calculate the force between two identical charges of 1.0 x 10 exp -9 C separated by 1.0 Cm
May 10, 2010 by Nina

chemistry
for Fe + V2O3 -----> Fe2O3 + VO write the two half reactions and calculate voltage
May 12, 2010 by Anna

college
how do you calculate molar concentration for 1.50g NaCl in 100.00mL of solution?
May 17, 2010 by bernadette

account
How would we calculate the gain or loss from the sale of equipment? Can you provide an example?
May 30, 2010 by lola

physics
calculate the total area of the walls of a room 5m long 4m wide and 2.5m high
June 9, 2010 by romardo

Physics
How do you calculate error analysis? For example; 200 +- 5% Please explain if possible
June 13, 2010 by 3i

college
Consider the titration of 50.0 mL of 0.20 M NH3 (Kb=1.8*10^-5) with 0.20 M HNO3. Calculate the pH after addition of 50.0 mL of the titrant.
June 21, 2010 by Syra

chemistry
calculate the pressure,in atmospheres, of 2.00 mol helium gas in a 10.0-L container at 27 celcius?
June 27, 2010 by Jetta

chemistry
calculate the pressure,in atmospheres, of 2.00 mol helium gas in a 10.0-L container at 27 celcius?
June 27, 2010 by Jetta

CHEM 152
Calculate the molar solubility of calcium carbonate in 0.10 M Ca(NO3)2. (Ksp= 2.8 x 10-8)
June 27, 2010 by Car

chemistry
how would you calculate the weight of percipitate of AgBr that will dissolve in 400 ml of water?
July 15, 2010 by ashley

trig
Calculate the amplitude, period, phase shifts, and 5 points for y=2-sin(2piex/3)
July 27, 2010 by student

chemistry
Calculate the pH of the solution that results from the mixture. 170 mL of 0.12 M C2H5NH2 with 285.0 mL of 0.22 M C2H5NH3Cl.
July 28, 2010 by Ellen

chemistry
Calculate the density of an object having a mass of 17g and a volume of 3 cm cubed. Thanks
August 11, 2010 by Haiden

Chemistry
Calculate the amount of heat required to raise the temperature of a 54 g sample of water from 5C to 20.C.
September 15, 2010 by Ben

maths
hi how would you calculate altitude given airspeed, rate of descent and time? thank you!
September 20, 2010 by gina

chemistry
Calculate the amount of heat required to raise the temperature of a 25 sample of water from 7 to 25.
September 20, 2010 by Anonymous

chemistry
calculate the velocities of electrons with de Broglie wavelengths of 1.0x10^2nm and 1.0nm
September 23, 2010 by joanne

Chemistry
Calculate the molality of CsCl in a 6% by mass aqueous solution. Answer in units of m.
September 23, 2010 by Cheyenne

biochemistry
Calculate the pH change of 10mL of HCl added to 1M phosphate buffer in 1L with initil pH of 7.2?
September 28, 2010 by Lina

chemistry
calculate the volume of .1M HCl that is required to react with 50 mL of .1M ammonia to form a mixture that has pH 9
October 6, 2010 by maycee

physics
The speed of a train increased from 15 mi/hr to 25 mi/hr in a distance of 500 ft. Calculate the average acceleration in ft/s2.
October 9, 2010 by jazz

Chemistry
Calculate the molality of CsCl in a 18% by mass aqueous solution. Answer in units of m.
October 11, 2010 by Mike

chemistry
Calculate the mass of KI in grams required to prepare 7.00 multiplied by 102 mL of a 2.60 M solution
October 12, 2010 by Anonymous

Chemistry
Calculate the number of molecules in 3.1466x10^1 grams of sulfur dioxide, SO2
October 22, 2010 by HELP

Chemistry
Calculate the number of molecules in 3.1466x10^1 grams of sulfur dioxide, SO2
October 22, 2010 by HELP

chemistry
calculate the work done when 50.0g of tin dissolves in excess acid at 1.00 atm and 25 degrees c.
October 24, 2010 by veronica

Chemistry
Calculate the [H3O+] of the following polyprotic acid solution: 0.145 M H3C6H5O3?
October 24, 2010 by Anonymous

chemistry
Calculate the [H3O+] of the following polyprotic acid solution: 0.145 M H3C6H5O3?
October 24, 2010 by Anonymous

Chemistry
calculate the number of formula units of 0.0067 g of lithium carbonate, Li2CO3?
November 11, 2010 by Zach

chem
at 50.0C the balloon ha a vlomue of 1.78L. Calculate the carbon dioxide density at this temperature.
November 14, 2010 by julia

chemistry
Calculate the ionization constant, Ka, of phenol (HC6H5O), a weak acid, if a 0.25 M solution of it has a pH of 5.24.
November 15, 2010 by Audrey

chemistry
how do I calculate what temperature is needed to heat 52 grams of ethane to occupy 1200ml?
November 17, 2010 by david

chem
Calculate delta G rxn for a redox reaction with n = 2 that has an equilibrium constant of K = 4.410−2.
November 22, 2010 by moe

Please Help
The method used to calculate depreciation for federal income tax purposes is ?
November 22, 2010 by Math Question

chemistyr
Calculate the molar solubility of MX2, if the Ksp=3.3x10^-8 how can i solve this problem?
November 23, 2010 by roseanne

chemistry
Calculate the molar solubility of MX2, if the Ksp=3.3x10^-8 how can i solve this problem?
November 24, 2010 by roseanne

Physics
Calculate the hang time of an athlete who jumps a vertical distance of 0.75 meter.
November 25, 2010 by Laura

chemistry
3.49g of ammonia at STP weighs 4.48litre calculate molecular mass of it.
November 28, 2010 by Anonymous

Chemistry
Calculate the concentration of the solution in mass percent: 32.3 mg KNO3 in 2.44g of H2O.
November 30, 2010 by Kelsey G

Chemistry
Calculate the enthalpy change per gram for the combustion of ethane (C2H6(g)).
December 4, 2010 by Billy

marketing
Calculate a forecast of the above demand using a 3- and 5-period moving average.
December 13, 2010 by Anonymous

chemistry
Calculate the "exact" alkalinity of a water that contains 0.6580 mg/L of bicarbonate, as the ion, at a pH of 5.66.
January 21, 2011 by Jazmin

Chemistry
Calculate the volume of Sulfur dioxide produced when 27.9 mL of O2 reacts with carbon disulfide
February 1, 2011 by La

chemistry
How do you calculate the weight of the following compounds? A)H2O2 B)C6H8O6 C)K2Cr2O7 D)C56H88O2
February 2, 2011 by Twynna

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

Chemistry
Kc=1. The initial concentrations are A = 0M, B = 0M, C=10M. A+B --> C calculate the reaction quotient. (c)/(a)(b) = 10/0 .. is the answer zero?
February 9, 2011 by Jenny

college chem
Calculate the Mole Fraction of benzene in toluene if there are 5 grams of each in the mixture
February 10, 2011 by shelby

chemistry
calculate the volume of amonia that is produced at stp when 10.5 grams of N2 reacted with excess H2.
February 12, 2011 by fatima

chemistry
calculate the volume of amonia that is produced at stp when 10.5 grams of N2 reacted with excess H2.
February 12, 2011 by fatima

general chemistry
Calculate the de Broglie wavelength (in pm ) of a hydrogen atom traveling 445 m/s.
February 13, 2011 by soso

accounting
how do you write a program for an accountant using java to calculate income tax?
February 16, 2011 by Anonymous

chemistry
calculate the number of grams atom and gram molecules in 25.4milligrams of iodine ?
February 24, 2011 by larisque

chemisrty
calculate the percent by mass of carbon(c) in the amino acid arginine,C6H16N4.
February 27, 2011 by michelle

physics
calculate the speed of an 7.3*10^4kg airliner with a kinetic energy of 1.4*10^9J. answer in units of m/s.
March 7, 2011 by haha

math
Calculate the volume of the cone with a = 18 and b = 11. Round answer to the nearest tenth. Use 3.14 for pi
March 28, 2011 by BreAnna

Chemistry
Calculate the number of moles in these quantities. 1. 25.0 g KNO3 2. 5.4 x 102 g (NH4)2C2O4
March 20, 2011 by Netta

science
Calculate the energy required to raise the temperature of 150.0 g Ag from 273 K to 291 K.
March 24, 2011 by AS

trig
ABC is an isoscele triangle in which [AB]=[AC]=5cm and [BC]=6cm. Calculate [AM], where M is the mid-point of BC.
March 26, 2011 by ezendu

chemistry
calculate the mass of CO2 obtained when HCL reacts with 15g CACO3.
April 1, 2011 by Shiy

Chemistry
Calculate [OH-] and pH for the following strong base solution: 10.0 mL of 0.0105 M Ca(OH)2 diluted to 500.0 mL
April 18, 2011 by Kendall

chemisty
calculate the molarity of a solution with .2 moles of sodim hydroxide dissolved in .5L of water
April 27, 2011 by Anonymous

science
calculate the density of a solid which weighs 15N in air and 12N in water
May 6, 2011 by force

Chemistry
how do you calculate the pOH of a 0.25M solution of monochloroacetic acetic acid at 25C
May 11, 2011 by Illyana

chem
You have a series of four chemical reactions (1 2 3 4). How do you calculate the H2 if you know the other H values?
May 17, 2011 by Pat

chemistry
calculate the change in temperature if 16.9kJ of heat was removed from 500.0g of water
May 24, 2011 by Anonymous

MATH
WRITE A SIMPLE BUT A COMPLETE FORTRAN PROGRAM TO CALCULATE THE AREA OF A TRIANGLE
June 15, 2011 by EDWIN

grenoble
using the hasselbach-Handerson equation calculate the fraction of asprin Pka is 5.6 and PH is 8.6?
June 20, 2011 by jaji

chemistry
Calculate the number of moles of FeSO4 in 25cm3 of a 0.2mol dm3 solution
June 21, 2011 by Richard

physics
Calculate the quantity of heat required to raise the temperature of 2.00 g of water 4.00◦C.
July 5, 2011 by angel

physics
A tuning fork produces a wave at 280 Hz and with a wavelength of 1.5 m. Calculate its velocity.
July 8, 2011 by wendell

Chemistry
Is it possible to calculate heat of vaporization if i only have pressure and temperature.
July 20, 2011 by San

Chemistry
calculate the pH and the pOH of an aqueous solution that is 0.035 M In HCI and 0.080 M in HBr?
July 23, 2011 by Josh

biology
how to calculate the class average of millilitres of CO2 exhaled per minute?
July 29, 2011 by lola

chemistry
calculate the amount of 95% marble required to obtain 11.2Litres OF CARBON DIOXIDE
September 10, 2011 by sum

geometry
calculate the volume of the rectangular prism height= 17 3/4 width= 16 1/4 depth= 21 1/2 V=lxwxh
September 21, 2011 by hishka

geometry
calculate the volume of the rectangular prism height= 17 3/4 width= 16 1/4 depth= 21 1/2 V=lxwxh
September 21, 2011 by hishka

physics
If a car moves at 36km/h accelerate uniformly at 4m/s calculate it velocity in 2 seconds.
September 22, 2011 by Displacement

Prcts chemistry
Calculate the pH of 0.0115M acetic acid solution at 25 degrees celcius with Ka = 1.75*10^-5
September 22, 2011 by Gift

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