Monday

July 28, 2014

July 28, 2014

Number of results: 17,578

**math**

Given the fuction y = log3(x+3)+2, calculate the zero of the function. GIve an exact answer.
*December 12, 2009 by Cyn*

**science**

Calculate the mass of SO3 gas that forms when 10g of SO2 reacts with oxygen
*February 26, 2010 by Anonymous*

**chemistry**

calculate the volume of 0.1M NaOH which must be added to 50 mL of 0.1M HCl to give a final solution of pH 6???
*March 4, 2010 by sara*

**chem**

calculate the pH for a solution that is made by combining 125ml of 6.0*10-2 M hydroflouric aid with 50 ml of .12 M sodium flouride?
*March 4, 2010 by Nikki*

**Chemistry**

Calculate the pH at 298K of solutions having the following ion concentrations? A. [H+]=1.0 x 10^-4M B. [H+]=5.8 X 10^-11M for A do you subtract 1.0 X 10^-14 from H+]=1.0 x 10^-4M
*March 8, 2010 by Anonymous*

**personal finance**

must calculate whether a couple should rent or buy a home.
*March 11, 2010 by don*

**microeconomic**

how to calculate price elasticity of demand of $3.00 to a increase to $3.50 and explain your reasoning and interpret the results
*March 27, 2010 by susie quick*

**Chemistry**

Calculate the percent by mass of water in magnesium sulfate heptahydrdrate (MgSO4-7H2O)
*April 13, 2010 by Kim*

**Chemistry**

Calculate the percent by mass of water in magnesium sulfate heptahydrdrate (MgSO4-7H2O)
*April 13, 2010 by Kim*

**chem**

Use this percentage to calculate the mass of fluorine in grams contained in 29.0 g of copper (II) fluoride
*April 25, 2010 by melissa*

**College chemistry**

How do you 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 amount of heat necessary ti raise the temperature of 8.5kg of water from 12.5 to 84 degrees C
*May 4, 2010 by Quentin*

**College Chemistry**

How do i calculate the pH when 200ml of .200M HCl is added .4998M of sodium acetate?
*May 9, 2010 by Jim*

**College Chemistry**

How do i calculate the pH when 200ml of .200M HCl is added .4998M of sodium acetate?
*May 9, 2010 by Jim*

**Algebra 2/trig**

How would I calculate the following function value? tan = 29degrees 36feet
*May 15, 2010 by Brenna*

**Chemistry**

Calculate (triangle H) for the complete combustion of 10.0g benzen. Equation? and could someone give me the answer?
*May 20, 2010 by Anonymous*

**Maths**

Please help, I need to calculate the gradient of a straight line that passes through the points (4,3) and (10,0)
*July 8, 2010 by Just*

**chemistry**

calculate volume of co2 produced by combustion of 40 ml of acetone in presence of excess oxygen?
*August 8, 2010 by siddhant*

**calculus**

Calculate the volume of the body which is obtained by rotating the curve y = ex 2px, 0 x 1 about the x-axis.
*August 13, 2010 by Student*

**Math**

How would I calculate the area of a sector of a circle with radius 2 m that subtends an angle pi/3
*August 14, 2010 by Dave*

**chemistry**

Calculate the expansion work done when 50 g of water is electrolysed under constant pressure at 25C
*September 5, 2010 by Dana*

**Physical chemistry**

Calculate the pressure exerted by 1.0 mol C2H6 behaving as a perfect gas
*September 13, 2010 by Melissa*

**biochemistry**

How do you calculate the PH of a buffer solution prepared by mixing 75 mL of 1.0 M lactic acid and 25 mL of 1.0 M sodium lactate?
*September 18, 2010 by nicki*

**Science**

A horse with a force of 50 N pulls a cart of wood a distance of 10 m. Calculate the amount of work done.
*October 6, 2010 by George perez*

**chemistry**

I need to calculate the density, with work shown. 50.0 mg of a gas which occupies a volume of 0.0064 L ?
*October 7, 2010 by alisha*

**physics**

a 10-kg bos slides down a frictionless ramp with acceleration 3.6 m/s calculate the weight anlge? f ?
*October 8, 2010 by Bolo*

**Physics**

Calculate the tangential speed of the earth around the sun (assuming a circular orbit).
*October 13, 2010 by Tamara*

**statistics**

Sample size is 24, Mean rate of 6.50%, Standard Deviation is 1.20. Calculate 90% of confidence interval
*October 14, 2010 by sue*

**CHEMISTRY**

calculate the number of moles of solute present in 124.0g of a solution that is 6.45% glucose by mass.
*October 14, 2010 by lulu*

**physics**

calculate the impulse necessary to stop a 1500 kg car travelling at 90km/hour
*October 18, 2010 by Anonymous*

**geometry**

Calculate the volume of the figure shown. a = 8 and b = 12. Use 3.14 for pi and round answer to the nearest tenth
*March 28, 2011 by BreAnna*

**Calculus**

Use Newton's Method with the function f(x)=x^2-2 and initial value Xo=2 to calculate x1,x2,x3. I have no idea how to do this
*October 27, 2010 by Don*

**chem**

calculate the molality of a solution that has 1.02kg sucrose (C12H22O11), dissolved in 554g water.
*October 27, 2010 by julia*

**PHYSICS**

Calculate the radial acceleration of an object on the ground at the earth's equator in m/s2, turning with the planet.
*October 29, 2010 by Mattie*

**Physics**

Calculate the radial acceleration of an object on the ground at the earth's equator in m/s2, turning with the planet.
*October 31, 2010 by Lisa*

**UW River Falls**

Calculate the enthalpy change, , for the process in which 40.0 of water is converted from liquid at 12.8 to vapor at 25.0.
*November 5, 2010 by Anonymous*

**chemistry **

Calculate the frequency of electromagnetic radiation emitted by the hydrogen atom in the electron transition from n = 7 to n = 6.
*November 7, 2010 by Emily *

**Chem 110 **

Calculate amount of milliliters of 2.0 M HCl needed to neutralize 0.15 mol of NaOH
*November 8, 2010 by Matilda *

**sociology**

Describe other measurements besides IAT sociologist utilize to calculate prejudice?
*November 14, 2010 by Shantai*

**chemistry**

calculate the energy of a photon emitted when an electron in a hydrogen atom undergoes a transition from n=5 to n=1 how do I do this?
*November 21, 2010 by Lisa*

**Chemistry**

The solubility of calcium sulfate at 30 degrees C is .209 g/100mL solution. calculate its Ksp.
*November 29, 2010 by Al*

**Chemistry**

Calculate the concentration of the solution in mass percent: 122 g KCl in 628 g H2O.
*November 30, 2010 by Kelsey G*

**Chemistry**

calculate the percent composition, by mass, of carbon in Na2CO3. please explain how you get the answer.
*January 2, 2011 by denise*

**Chemistry (acids and bases)**

Calculate pH, pOH, [H+], [OH-], and Ka for a 0.026 M solution of HI (a strong acid). Please help me :(
*January 7, 2011 by Marie*

**physics**

How can I calculate exactly where a marble will drop if it is rolling of a table with very little friction??
*January 8, 2011 by lia*

**Statistic**

Calculations please, Calculate the first, second, and third quartiles of the following samples. 5 8 2 9 5 3 7 4 2 7 4 10 4 3 5 23
*January 31, 2011 by Delisha*

**chemistry**

Calculate the mass in grams for a gold sample that absorbs 225 to change its temperature from 16.0 to 36.0.
*February 3, 2011 by Heather*

**Chemistry**

Calculate the amount of Citric acid monohydrate needed to make 100 mL of 0.1 M solution
*February 7, 2011 by Emily*

**Math**

Given that f(x) = a log x for some constant a, and that f(7) 5:282, determine the value of a and calculate f(13) to 3 decimals.
*February 10, 2011 by Diane*

**Geometry**

Describe the information you need in order to calculate a segment length in a right triangle
*February 11, 2011 by Jonathon*

**chemistry**

Calculate the empirical formula of each compound from the mass-composition data given below. A)41%N and 59%O B)45%Na,23%P and 32%O
*February 13, 2011 by twynna*

**chemistry**

Calculate the number of moles and atoms. A)64 gm of O2 B)58.9 gm of CI C)90.5gm of (HN4)2SO4 D)243gm of Mg2
*February 13, 2011 by twynna*

**geometry**

An object is made from a cylinder with a hemisphere at each end.r=5cm, height=12 .Calculate volume.
*February 16, 2011 by reshma*

**Chemistry**

Calculate the pH of (1)0.150M KC2H3O2: (2)0.200M pyridine chloride, C5H5NHCl: and(3) 0.500M NaCl
*February 21, 2011 by Joshua*

**Chemistry**

Calculate the pH of (1)0.150M KC2H3O2: (2)0.200M pyridine chloride, C5H5NHCl: and(3) 0.500M NaCl
*February 21, 2011 by Joshua*

**Physics**

Calculate the speed of an 7.8×104 kg airliner with a kinetic energy of 1.0 × 109 J. Answer in units of m/s.
*February 27, 2011 by James*

**Chemistry**

Calculate the mass of sodium bicarbonate needed to neutralize 3.0 mL of 3.0 M HCl. Show your work.
*March 2, 2011 by Dan*

**Chemistry**

Calculate the mass of sodium bicarbonate needed to neutralize 3.0 mL of 3.0 M HCl. Show your work.
*March 2, 2011 by Dan*

**chemistry**

calculate the mass of water produced when 3 g HCL reacts with excess sodium carbonate
*March 3, 2011 by joe*

**Physics**

Calculate the distance (in km)that Larry runs if he maintains an average speed of 8km/hr for 45 minutes.
*March 5, 2011 by Roger*

**chemistry 32**

Calculate the concentration, in molarity, of a solutiion prepared by adding 9 mL of water to 1mL of 0.1 M of HCl
*March 10, 2011 by Adrian*

**chemistry**

Calculate the mass of kl in grams required to prepare 5.00x10power 2mL of 2.80M solution
*March 11, 2011 by lisa*

**chemistry**

Calculate the molar solubility of in the following substances. Pure water and 1.5×10−3 K2CrO4
*March 14, 2011 by Bob*

**chemistry**

calculate the volume of water in mL needed to make 75% solution containing 50g of CaCl2
*March 15, 2011 by Quinne*

**Chemisrty**

calculate the final Celsuis Temp when 5.0 L of Flourine gas at 50 is cooled to give a volume of 3.75?
*March 24, 2011 by Dee*

** chemistry**

Calculate each of the following quantities in 0.183 mole {\rm (C_3H_5)_2O}: Find the Atoms of H and C
*April 3, 2011 by Ivy*

**maths**

in a triangle ABC, C=10CM A=12CM ANGLE B Is 20 DEGREEZ calculate the lenght of side b
*April 13, 2011 by anjai*

**science**

Calculate the amount of potential energy a 3 kg can of paint has when it is placed on top of a ladder that is 2.5 m in height 1.2j ?
*May 5, 2011 by Anonymous*

**Chemistry**

how do you calculate the quantity of heat gained or lost? 0.60 mol of steam condenses at 100°C
*May 25, 2011 by Emily*

**Chemistry practice**

Calculate using the enthaly of formation,the enthalpy of combustion of methanol,CH3OH
*July 31, 2011 by Gift*

**math**

$3,000 at 8% for 30 years (a) Calculate the future amount if the money were invested at simple interest
*August 23, 2011 by apryl*

**Maths**

May I please have help with this Calculate the following numbers into scientific notation 2500 nm – 7 pm
*September 5, 2011 by Anonymous*

**chemistry**

Calculate the decrease in temperature in degree Celsius for 115g of copper that loses 2.54kJ
*September 7, 2011 by Sarah*

**physics**

calculate the work done in lifting a 300N weight to a height of 10 m with an acceleration 0.5m/second square.
*September 12, 2011 by gallium*

**physics**

calculate the work done in lifting a 300N weight to a height of 10m with an acceleration 0.5 m/s square.
*September 13, 2011 by armando*

**Maths**

Sketched are the graphs of f(x)+x squared +4x-12,calculate the lenght of rs if s is the turning point of the para bola
*September 15, 2011 by Sphiwe*

**Chemistry**

Calculate the percent composition by mass of each element in Al(OH)3 Use at least 3 significant figures. %Al = %O = %H=
*September 18, 2011 by Jerry*

**physics**

Calculate the amount work done on 60 N of force is used to move an object a distance of 4.0 meters
*September 20, 2011 by Joe Barrera*

**chemistry**

Calculate the final temperature of 289 of water initially at 35 upon absorption of 20 of heat.
*October 7, 2011 by jasmin*

**chem 12**

Calculate [H3O] an [OH] for a sodium hydroxide solution having a pH of 12.5. I know this is a strong base, and i got the pH 12.5. But i don't know how to go from there.
*October 11, 2011 by Sarah*

**chemistry**

Calculate the concentrations of all species present in a 0.32 M solution of ethylammonium chloride (C2H5NH3Cl).
*October 16, 2011 by timothy*

**organic chem **

Calculate Percent Composition of the Unknown Mixture : Methanol BP 64.7 Toluene Bp 110.6
*October 16, 2011 by john*

**Chemistry 12**

Calculate the pH of the solution that results when 27.38mL of 0.15M H2SO4(aq) is mixed with 18.50mL of 0.19M Ca(OH)2 (aq)
*October 17, 2011 by Anonymous*

**chemistry**

Calculate the number of grams of oxygen required to convert 58.0g of glucose to CO2 and H2O?
*October 17, 2011 by Ginger*

**science**

How do you calculate how long will it take an object dropped from a window to fall a distance of 78.4 meters?
*October 17, 2011 by eric*

**chemistry**

calculate the density of oxygen,O/2 under each of the followig conditions-stp,1.00 atm and 35.0 celsius?
*October 19, 2011 by tony*

**Chemistry**

Calculate the pH of a 0.10 M NaHX salt solution. Ka (H2X) = 2.1 x 10-2 Ka (HX-) = 4.5 x 10-8 Can someone explain the steps to do this please?
*October 21, 2011 by ellen*

**statistics**

Given the following information about a sample, calculate a z score for a test grade of 91. = 87, s = 4.01
*October 22, 2011 by siobhan*

**chemistry**

Calculate the volume occuiped by 7g of nitrogen gas at 27degree centigrade and 750 mm of Hg pressure?
*October 23, 2011 by zhalia moon*

**chemistry**

Calculate the normal freezing point of an aqueous solution containing 30% w/w ethylene glycol. Thanks
*October 26, 2011 by el*

**Chemistry**

calculate the frequency of an xray having a wavelength of 3.5*10to the negative seven m. (meters).
*October 31, 2011 by Nick*

**Chemistry**

How can I calculate the energy required for the ionization of an electron from the ground state of the hydrogen atom?
*November 2, 2011 by Lorry*

**chemistry**

a sample of iron (35.0g) absorbs 5.50J. of heat. calculate the increase in temperature that occurs
*November 3, 2011 by payton*

**chemistry**

Calculate the pH of a solution made with 0.0600 M carbonic acid, H2C03 and 0.0300 M NaHCO3.
*November 8, 2011 by Jessica*

**Laboratory Techniques**

Calculate the number of moles K2CO3 of and MgCl2 in the 15 ml aliquots of reagent solution
*November 14, 2011 by Chemistry*

**maths**

The perpendicular bisector of the line joining the points D(1,2) and E(5,4) meets the y-axis at the point (0,k).calculate k
*November 27, 2011 by vmu*

**computer science**

write a quiz programs in Q Basic to ask 5 questions to the user and calculate the score
*December 15, 2011 by vishva*

**physics**

Calculate the speed (in m/s) of a skateboarder who accelerates from rest for 4 seconds down a ramp at an acceleration of 3 m/s2.
*December 23, 2011 by Sabrina*

**Chemistry**

A 0.217-kg sample of methylene chloride has a density of 1.326 g/cm3. Calculate its volume.
*January 18, 2012 by Judith*

**Chemistry**

Calculate to four significant figures, the energy of a photon emitted when an electron falls from n=5 to n=4
*January 30, 2012 by Kaleen*

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