Sunday

March 1, 2015

March 1, 2015

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 µC 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 25°C.
*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 Excel’s 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 55¡ÆC is cooled to 15¡ÆC, 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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