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April 26, 2015

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Number of results: 19,787

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

chemistry
Calculate the grams of substance required to prepare 250mL of 5%(wt/vol) NaNO3
September 22, 2011 by desperate for help

physics
a plane stops from 250 mph in 25 seconds. Calculate the planes acceleration
September 24, 2011 by cj

Chemistry
Calculate the empirical formula for the compound 1.245g Ni, 5.381g I Can you help with the steps please
September 25, 2011 by Monique

Chemistry
how to you calculate the partition coefficient of benzoic acid .13 grams in a 1.6 mL CH2Cl2 and 1.6 mL water?
September 26, 2011 by Paige

Chemistry
Calculate the volume of 2 M acetic acid needed to prepare 50 ml of 0.1 M acetate buffer.
September 29, 2011 by Allie

Chemistry HELP
Calculate the number of molecules in 3.11 mol of CCL4 I got 2.88E26 am I correct
September 29, 2011 by Monique

chemistry
Calculate %tage by mass of all component element NaNo3 given,(Na=23,N=14,o=16)
October 6, 2011 by Elijah

Chem
Calculate the amount (in moles) of Cu+ ions in 3.00g of CuBr₂. Thank you so much for the help!!
October 8, 2011 by Erica

math
calculate 2/3 1/2. In your own words, describe how the quotient of two fractions can be calculated.
October 9, 2011 by Kate

chem
calculate the molality of a solution of 2.34g acetic acid, HC2H3O2, in 35.0 g water
October 11, 2011 by michael

Chemistry
Calculate the sodium ion concentration when 50.0 mL of 2.0 M Na2CO3 is added to 100.0 mL of 3.0 M NaHCO3
October 25, 2011 by Andres

Science
Calculate the pressure exerted on your finger if you hold up a 15-pound box of apples.
October 27, 2011 by Steve

Science
Calculate the pressure exerted on your finger if you hold up a 15-pound box of apples.
October 28, 2011 by Steve

Chemistry
Calculate the wavelength of a photon of yellow light whose frequency is 6.3*10^5m. (meters)
October 31, 2011 by Mike

Chemistry
Calculate the frequency of a photon of orange light whose wavelength is 6.2*10^5m. (meters)
October 31, 2011 by rob

chem
Im not sure how to go about this: Calculate the number of gramms in 0.65 mole of aluminum carbonate?
November 4, 2011 by gaviota

chem
Im not sure how to go about this: Calculate the number of gramms in 0.65 mole of aluminum carbonate?
November 4, 2011 by tina

Maths
Calculate speed give your answers in km/p hour Distance = 18 KM Time = 12 minutes S - T
November 6, 2011 by Tom

chemistry
Calculate the mass of carbon dioxide produced by burning 0.60kg of methane
November 7, 2011 by Luc

Chemistry
Calculate the solubility of AgCl in the following solution: 100mL of .004 M CaCl2
November 7, 2011 by Kevin

Math
How do you calculate interest earned using the initial money and ending savings?
November 22, 2011 by Anonymous

AP Chemistry
The solubility of solid Ce(IO3)3 in a 0.20 M KIO3 solution is 4.4 10-8 mol/L. Calculate Ksp.
December 4, 2011 by Bill

chemistry II
how do I calculate how many moles of solute particles are in one mole of naphthalene, C10H8?
December 7, 2011 by rebecca

physics
how do we calculate the height of a falling ball with a mass of 0.5kg and a velocity of 10m/s.
December 9, 2011 by sim

chemistry
calculate the energy required to heat 1.00L of ice at -50.0C to steam at 180.0C
January 17, 2012 by Jessica

statistics
for the following data, calculate the sampling distribution parameters. u=120, o= unknown, s= 18, n=36
January 18, 2012 by jim

chemistry
Calculate the number of moles of each ion in 10.5 mL of 0.205 M cadmium phosphate solution.
January 22, 2012 by student

chemistry
Calculate the number of moles of each ion in 10.5 mL of 0.205 M cadmium phosphate solution.
January 22, 2012 by diana

physics
Calculate the total force of the atmosphere acting on the top of a table that measures 1.9 m by 2.3 m.
January 23, 2012 by B

arithmetic
To calculate a 15% tip on a $24 bill a customer adds $2.40 and half of $2.40, or $1.20, to get $3.60. Is this method valid? Why or why not?
April 6, 2012 by Heather

math
how do you calculate the unite price of the two items showing long division
February 13, 2012 by kyle

math
how do you calculate the unite price of the two items showing long division
February 13, 2012 by kyle

chemistry
Calculate the grams of K2CO3 required to prepare 546.0 mL of a 0.789 g/L K+ solution.
February 15, 2012 by donald

chemistry
calculate the theoretical weight of sodium borohydride need to reduce 50 mg of benzil
February 16, 2012 by vanessa

Chemistry
How do you calculate the mass in kilograms of 3.99 liters of acetic acid. The density of this substance is 1.05 g/mL.
February 18, 2012 by Tina

chemistry
calculate the mass in kilograms of 3.99 liters of acetic acid. the density if 1.05g/ml.
February 20, 2012 by Anonymous

math 150
How do I calculate the expected value of a ten spot keno game?
February 21, 2012 by patty

chemistry
Calculate the concentration in ppm if 8 grams of CaCl2 is dissolved in 250 ml of water.
February 22, 2012 by Emmee

Geometry
Calculate surface area and the volume of a box that is 3m by 2m by 7.5m Show me how to get the answer please.
February 28, 2012 by Thomas

Chemistry
Calculate the equivalent mass of each of the following acids. a) HC2H3O2 b) KHCO3 c) H2SO3
March 8, 2012 by DAN

AP CHEMISTRY
Calculate the equivalent mass of each of the following acids. a) HC2H3O2 b) KHCO3 c) H2SO3
March 8, 2012 by HELP PLEASE

Chemistry
3.54*10^7 g of TiCl4(g) are reacted completely. If 7.91*10^6 g of Ti(s) is actually obtained, calculate the percent yield.
March 11, 2012 by Nikki

chem
calculate the mass in grams of oxygen atoms in 0.25 mol fluoroacetic acid
March 28, 2012 by lisa

chemistry
please help calculate the volume of a cylinder that is 4.476 mm in height and 17.00mm in diameter
April 4, 2012 by linda

Chemistry
Calculate the molality of a solution prepared by dissolving 31.6 g of Fe2O3 in 750. g of water
April 8, 2012 by Tina

geography
calculate the freeboard of a 10-m thick iceberg in saltwater (seawater density of 1025 kg/ m^3)
April 9, 2012 by Jackson

Chemistry
16. 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? H2 = (H1)(H3)/(H4) H2 = H4 (H1 + H3) H2 = H1 + H3 + H4 H2 = H1 + H3 H4
April 10, 2012 by JoJo

Physics
Calculate the magnitude of the force between two 3.95 C point charges 7.4 cm apart
April 24, 2012 by TotallyLost

Chemistry
Calculate the volume of NaOH 0.5 mol/L necessary to neutralize 300 mL of HCl 0.2 M.
May 11, 2012 by Katie

Chemistry
Calculate the KA of formic acid if 2.3 g of it is dissolved in 1 litre of water to give [H+] of 0.003 M.
May 13, 2012 by Andrea

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