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March 1, 2015

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Number of results: 19,231

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

Chemistry
Calculate the grams of solute required to make 2500mL of 90% saline solution?
May 17, 2012 by Morgan

gen chemistry
calculate the percent m/v concentration of a 5L solution containing 500g NaCl
May 18, 2012 by ashia3

Chemestry
I got NaOH, 7%, and its density is 1,08g/mol. Calculate the molar concentration.
May 23, 2012 by Martins

CHEM
4.69 of S is reaction with oxygen calculate the volume of SO2 in mL formed at 33 degrees C and 1.14 atm
June 5, 2012 by aPRIL

Chemistry
For the following fusion reaction, calculate the change in energy per mole. 2/1 H + 3/2 He -> 4/2 He + 1/1 H
June 13, 2012 by Anonymous

Chemistry
For the following fusion reaction, calculate the change in energy per mole. 2/1 H + 3/2 He -> 4/2 He + 1/1 H
June 13, 2012 by Anonymous

chemistry
calculate the volume occupied by 10^22moleculesof a gas 300k and 760mm pressure
June 27, 2012 by asin

Algebra & Trig
calculate the velocity of 10 meters per second with an angle of 30 degrees
July 4, 2012 by Hanna

trigonometry
Calculate the perimeter of the inscribed square given that the radius of the circle is 3 feet.
July 6, 2012 by kimmy

chemistry
Please...how do you calculate the reduction potential for 1 M CuSO4? I've been trying for hours......!!
July 20, 2012 by fenerbahce

chemistry
the density of alcohol is 0.789 g/ ml at 20 degree celcius . calculate the mass of a 30 ml sample?
August 28, 2012 by CHEM HELP

Chemistry
Given 1.7 g of hydrobromic acid (48%) calculate the number of mL. (MW HBr: 80.91 g/mol, density: 1.49 g/mL)
September 3, 2012 by M

College Biology
Calculate the concentration in Moles for a 5mgMgCl2 sample in 2L of solution. Then how many ions are in it?
September 9, 2012 by cutiepie

Chemistry
Calculate the number of grams necessary of C6H12O6 to make 1.00 ml of 0.025 M glucose.
September 14, 2012 by Anonymous

Statistic for healthcare professional
calculate the sampling distribution parameters U=120,O=unknown,s+8,n=25
September 15, 2012 by CArline

physics
calculate the impulse to stop a 1500kg car moving 90kmper hours
September 24, 2012 by master

science
An object has a mass of 10 grams and a volume of 5cm3 calculate the objects density
September 24, 2012 by santriese

Maths
Calculate the density of earth given that its mass is 5.98x10^24 kg and volume is 8.78x10^8 m/s
September 25, 2012 by Beth

chemistry
calculate the volume in milliliters of a 5.55g sample of solid with density of 3.67g/ml
September 26, 2012 by nikki

Chemistry
How would I calculate the mass of 20ml of a 3% hydrogen peroxide from a 30% H2O2 solution?
September 26, 2012 by John

Managerial Economics
8. Calculate the price elasticity demand, given Q1=500 , Q2=1000 , P1=55,P2=50
September 29, 2012 by Anonymous

Physics
Calculate the distance (in ) that Larry runs if he maintains an average speed of 8.9 for 1 hour.
October 2, 2012 by Sami

Chemistry
Calculate the pH and the pOH of an aqueous solution that is 0.025 M in HCl(aq) and 0.075 M in HBr(aq) at 25C.
October 6, 2012 by Alex

chemistry
calculate the mass of sodium hydroxide needed to prepare 100 ml of a .10 m solution
October 7, 2012 by mike

chemistry
calculate the mass of sodium hydroxide needed to prepare 100 ml of a .10 m solution
October 7, 2012 by mike

chemistry
calculate the relativistic mass of 1.81x10^24 photons (3.00 mol) with wavelength of 450 nm.
October 15, 2012 by matt

chemistry
Calculate the grams of solute needed to prepare each of the following. 55.0 ml of a 6.50 hcl solution.
November 2, 2012 by mary

Chemistry
Calculate the mass of CO2 emitted (in lbs) when 1 gallon of octane is burned
November 4, 2012 by Sara

chem
Calculate the number of mol of helium in a 11.2 L balloon at 300 K and 1.00 atm of pressure ?
November 5, 2012 by don

chemistry
Calculate the mass in grams of 2.50 mol iron(II) hydroxide. A. 29.5 g Fe(OH)2 B. 184.5 g Fe(OH)2 C. 225 g Fe(OH)2 D. 3.38 x 10-2 g Fe(OH)2 C
November 11, 2012 by Cathy

business statistics
Assume that X is a binomial random variable with n = 5 and p = 0.35. Calculate the following probabilities?
November 14, 2012 by Alicia

Chem help
Calculate the pH of a solution containing 0.00001 moles of H3O per liter.
November 16, 2012 by Lindsey

chemistry
Calculate the degree of polymerization n of polystyrene with a molecular weight of 3.091*10^6 g/mol.
January 1, 2013 by cristie

Chemistry
Calculate the mass concentration of H2SO4 in a solution of 36%, with density 1.84g/cm3
January 20, 2013 by Anonymous

Physics
Calculate the average speed of the car in km/h, it can accelerate from 96.56 km/hr in 4.3 seconds. Distance is not provided
February 13, 2013 by Sev

chemistry
If 22.4 dm3 of steam react with MgO, calculate the mass of the product that will form.
February 18, 2013 by Chelsea

Chemistry
Calculate the density a gas will have at STP if its molar mass is 41.8 g/mol.
February 19, 2013 by Bay

chemistry
Calculate the amount of zirconium produced (in kg) if a reactor were charged with 261.0 kg ZrCl4 and 25.0 kg Na .
February 21, 2013 by mariam

Chemistry
Calculate the volume in liters of the gas (O2) at STP if it was massed at 6.75 x 105 grams.
February 24, 2013 by tif

Chemistry
calculate the amount of energy required to vaporize 43.0g of water at its boiling point
February 28, 2013 by Richie

general chemistry
Calculate the molarity of each of the following solutions.70.8g C2H60 in 2.51L of solution
March 7, 2013 by kelia

Chemistry
The Ksp of magnesium hydroxide, Mg(OH)2, is 5.61 10^-12. Calculate the molar solubility of this compound. Is the answer 1.1*10^-4 M?
March 16, 2013 by Anon

Chemistry
7. A solution is prepared by dissolving 8.5 g NaHCO3 and 12.7 g Na2CO3 in 500.0 mL of water. Calculate the pH.
March 20, 2013 by Nick

Chemistry
7. A solution is prepared by dissolving 8.5 g NaHCO3 and 12.7 g Na2CO3 in 500.0 mL of water. Calculate the pH.
March 20, 2013 by Nick

Statistics
Use this information to calculate the mean and standard deviation of this random variable. P(x)- .25, .05, .55, .15
March 26, 2013 by Bill

science
a guitar string is 75cm long,calculate the wavelength of its fundamental note
March 29, 2013 by ebere

science
Calculate the de Broglie wavelength of a 0.44 kg ball moving with a constant velocity of 26 m/s (about 60 mi/h).
April 2, 2013 by annie

chemistry
Calculate the new molarity when 150 mL of water is added to 125 mL of 8.55 M HBr.
April 2, 2013 by Alex

chemisty
Calculate the volume of 4.0ml of nitogen gas at 754mmhg and 25 degrees celcius
April 8, 2013 by zane

Chemistry
Calculate volume of 6MHCL required to prepare a 250 ml of a 0.15MHCL solution??
April 9, 2013 by Karen

Chemistry
Calculate volume of 6MHCL required to prepare a 250 ml of a 0.15MHCL solution??
April 9, 2013 by Karen

chem
calculate the concentration of all ions present in 58.7 mg NH4Br in 500 mL of solution
April 11, 2013 by celine

chemistry
Calculate and record the average molar heat of reaction from the three results.
April 16, 2013 by Anonymous

chemistry
A gas absorbs 25kj of heat and does 12kj of work calculate (triangle) E
April 16, 2013 by S

Chemistry
Calculate the standard potential, E^o, for this reaction from its equilibrium constant at 298K. X(s)+Y^2+(aq)= X^2+(aq)+Y(s) K=8.68E6 E^o=??V
April 17, 2013 by Help

CHEMISRTY
Calculate the energy required to raise the temperature of 160.0 g Ag from 273 K to 295 K.
April 21, 2013 by Tonya

physics
For the vectors in the figure below, with a = 8, b = 7, and c = 113, calculate the following dot products.
April 25, 2013 by tae

Math
Use Excels PMT function to calculate the monthly mortgage payment
May 2, 2013 by jane

Chemistry II
Calculate the pH at the equivalence point in the titration of 50ml of 0.20 M methylamine (Kb=4.3*10^-4) with a 0.40 M HCL solution.
May 3, 2013 by Katie

chemistry
Calculate the concentration of each solute and each ions when 25.0 mL of 18.0 M H2SO4 is mixed with 130.0 mL water
May 6, 2013 by Anonymous

chemistry
calculate the degree of polymerization of polystyrene with a molecular weight of 3.091e6 gm/mol
May 7, 2013 by himani.

Physics
Calculate the power of a hair dryer that operates on 120V and draws a current of 10 A.
May 12, 2013 by jamya

math
calculate the compound interest on investing $600 for 2 years at 7% per annum
May 17, 2013 by lennox

Chemistry
If 50 mL of a saturated solution of KClO3 at 55C is cooled to 15C, calculate the mass of precipitate that will form
May 20, 2013 by LOL

Chemistry
Calculate the grammes of oxygen which would involved on heating 5g of potassium trioxochlorate(v)
May 21, 2013 by Nkpume

Chemistry
Calculate the grammes of oxygen which would involved on heating 5g of potassium trioxochlorate(v)
May 21, 2013 by Nkpume

Chemistry 101
calculate the volume of a rectangular prism with a length of 5.6 , a width of 2.1 , and a height of 6.6 .
June 3, 2013 by Lisa Jacobs

Chemistry 101
calculate the volume of a rectangular prism with a length of 5.6 , a width of 2.1 , and a height of 6.6 .
June 3, 2013 by Lisa Jacobs

Science
Calculate the average size of the microbes in Saccharomyces ? show your working out.
June 13, 2013 by Tiaamiiah

maths
calculate the volume occupied by 5.25 gram of nitrogen at 26 degree Celsius and 74.2 cm of pressure
June 23, 2013 by deepu

keith
drop a ball from a height of 1.5 meters. Calculate its seed when it hits the floor
June 27, 2013 by aaron

Math
Calculate the length of the path over the given interval: (sin6t, cos6t), 0<t<pi
August 6, 2013 by Ali

Math
Calculate the length of the path over the given interval: (sin6t, cos6t), 0<t<pi
August 7, 2013 by Ali

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