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May 4, 2016

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Number of results: 22,109

Chemistry
Calculate the pH of a solution made with 0.240 M H3PO3 and 0.480 M NaH2PO3.
November 8, 2011 by Jessica

chemistry
Calculate the pH of an aqueous solution containing 1.6 x 10-2 M HCl, 2.0 x 10-2 M H2SO4, and 1.8 x 10-2 M HCN.
November 19, 2011 by alyssa

Algebra
Let t=50 y=30(2.7)^-0.004t y=30(2.7)^-0.004(50) y=30(2.7)^-.2 Need help with proper technique for using TI-83 to calculate. Thanks
November 27, 2011 by MV

chemistry
Calculate the molarity of a 295 mL solution contain 45 g of ethanol (C2H5OH)
November 27, 2011 by jane

chemistry
calculate the heat liberated when 118g of water at 0 degrees C is frozen?
December 6, 2011 by Monique

Physics
How do you calculate the phase constant in degrees given amplitude and frequency?
December 7, 2011 by Me

chemistry
From the balanced equation for tums and .0072mL calculate no. moles titrated.
February 9, 2012 by Everett

College Calculus
Calculate the average over the given interval. f(x)=sin(pi/x)/x^2, [1,2]
February 9, 2012 by Anonymous

chemistry
Given density of Mercury, 200.59....how do I calculate for the mass of 33.5mL
February 12, 2012 by jamie

chemistry
calculate the freezing point of a .05500 m aqueous solution of NaNO3
February 12, 2012 by Cece

chemistry
Calculate the mass of solvent that would contain 3.0 mg of a drug if the concentration was 3.5%
February 22, 2012 by Emmee

chemestry
Calculate [OH^ - ] for strong base solution: 14.0 mL of 1.2010−2 M Ca(OH)_2 diluted to 430.0 mL.
February 22, 2012 by chris

chemistry
Calculate pH for strong base solution: 15.0 mL of 1.2010^−2 M Ca(OH)2 diluted to 460.0 mL
February 26, 2012 by jeff

Chemistry
Calculate the pH of an aqueous solution containing 3.8 10-2 M HCl, 1.0 10-2 M H2SO4, and 3.3 10-2 M HCN.
February 28, 2012 by Brooke

Chemistry
Calculate the pH of an aqueous solution containing 3.8 10-2 M HCl, 1.0 10-2 M H2SO4, and 3.3 10-2 M HCN.
March 5, 2012 by Ashley

science
on mars, the buggy travelled 24m in 16 secs calculate its speed
March 8, 2012 by jorden

AP CHEMISTRY
Calculate the solubility of Mn(OH)2 in GRAMS PER LITER when buffered at each of the following. a)pH 7.4 b)pH 9.2 c) pH 11.5
March 10, 2012 by JIM

AP CHEMISTRY
Calculate the solubility of Mn(OH)2 in GRAMS PER LITER when buffered at each of the following. a)pH 7.4 b)pH 9.2 c) pH 11.5
March 10, 2012 by fernatesfsdf

Physics
Calculate AMA given μk = 0.019 and an angle of 11 degrees.
March 22, 2012 by Chris

chem pH
calculate the pH when 10 mL of .511 M sodium acetate and 20.00 mL of 0.350 M acetic acid
March 23, 2012 by brooke

AP CHEMISTRY
The Kb for ammonia (NH3) at 25C is 1.8* 10-5. By using the value of Kb, calculate ΔG for the equilibrium
March 23, 2012 by DAN

math
The 2nd, 3rd and 4th term of an ap are x-2,5,x+2 respectively ,calculate the value of x
March 30, 2012 by wale2

Chemistry
Calculate the [H+] in a solution containing 1.00 M hydroflouris acid (Ka=7.2 x 10^-4) and .50 M sodium fluoride
April 6, 2012 by Hannah

Chemistry
Calculate the concentration of aqueous solution of barium hydroxide whose pH is 12
April 7, 2012 by Momito

Chemistry
Calculate the concentration of aqueous solution of barium hydroxide whose pH is 12
April 7, 2012 by Momito

Chemistry
Calculate the mass of each compound containd in 60g of a 4.5%m/m CaCl2(aq)solution
April 27, 2012 by Victoria

chemistry
Calculate the theoretical pH when 5.00 ml of 0.0100 M HCl is added to 30.00 mL of deionized water.
April 29, 2012 by vivian

Statistics
M80,sd10,s8,n25 how do I calculate the sampling distribution parametes
May 13, 2012 by Mildred

Chemistry
Calculate the volume of Ba(OH)2 0.20 M necessary to neutralize 300.0 mL of H3PO4 0.30 M. (4 marks)
May 13, 2012 by Andrea

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

chem help
Calculate the number of grams of solute in 250.0 mL of 0.149 M KOH.
June 5, 2012 by Harlem

MATH
Calculate the percentage strength of hydrocortisone if you combine 30 g of 1%, 45 g of 0.5%, and 15 g of 2%. Round to the hundredth.
July 6, 2012 by Brittany

Math
Calculate the percentage strength of hydrocortisone if you combine 30 g of 1%, 45 g of 0.5%, and 15 g of 2%. Round to the hundredth.
July 6, 2012 by Brittany

chemical equilibrium
Calculate the value of Kc for 4NH3(g) + 3O2(g)= 2N2(g) + 6H2O(l)
July 9, 2012 by mohamed

Science
Calculate the pH of an aqueous solution containing 1.3 * 10^-2 M HCl, 3.0 * 10^-2 M H2SO4, and 2.0 * 10^-2 M HCN.
July 24, 2012 by Will Coppock

math
Interest= $432 r=6% t=8 years How do I calculate the principal and future value?
July 28, 2012 by LaCresha

MATH
2,100 LOAN AT 13% ADD ON INTEREST FOR 3 YEARS. HOW DO I CALCULATE THE APR?
July 28, 2012 by LaCresha

Statistics
Calculate the Pearson product-moment correlation for the data below. X 3 4 2 1 Y 5 5 3 4
August 28, 2012 by StudentD

Chemistry
Calculate the temperature at which k = 2.0 s-1 if k = 10.0 s-1 at 371 K. The activation energy for the reaction is 30.0 kJ mol-1.
September 6, 2012 by Amber

chemisrty
calculate the delta H when 0.150 mmol of AgCl dissolves in water?
September 9, 2012 by samadhi kandekumbura

Chemistry
Calculate the H+ ion concentration if 0.20M NH3 solution is 2.5% ionized.
September 12, 2012 by charley

analytical chemisty
Calculate the pH and pOH of a 0.00002M solution of acetic acid.
September 23, 2012 by mary

Chemistry
Calculate the molarity of a 100. mL solution containing 22.3 g of sucrose (C12H22O11)
September 24, 2012 by Mariah

Chemistry
calculate the volume of a rectangular prism with a length of 5.6 , a width of 2.1 , and a height of 6.6 .
September 27, 2012 by Annie

chemisty 2
Calculate the molarity (M) of a solution if you have 0.34 mol of NaOH in 19 ml of water
October 23, 2012 by chris

Chemistry
#26 The Ksp of lead(II) carbonate, PbCO3, is 7.40 10-14. Calculate the solubility of this compound in g/L.
October 24, 2012 by Mari Micci

Chemistry
#25 The Ksp of nickel(II) hydroxide, Ni(OH)2, is 5.84 10-16. Calculate the molar solubility of this compound.
October 24, 2012 by Mari Micci

chemistry
calculate the value of the equilibrium constant K for this reaction A+B <--> C from the following information 3C <--> D Kc= 7.1*10^-4 D <--> 3A + 3B Kc= 2.9*10^-2
November 3, 2012 by Brun

chemistry
calculate the mass of naso4 needed to prepare of 0.5L of 0.15M of solution
November 14, 2012 by elissa

Chemistry 1115
How do you calculate the molarities of HC2H3O2 and NaC2H3O2 in a buffer solution?
November 25, 2012 by Marci

stats & prob.
Given the values of n=5, p= 0.15, and (1-p)=0.85, calculate the standard deviation of the data.
November 27, 2012 by Georgia

Chemistry 3A
calculate the empirical formula for an unknown compound from the following information: C= 39.2%, H= 8.73% and O= 52.1%
December 10, 2012 by Gurjot

physics
calculate the value of g at a height of 3600 km above the surface of the earth?
December 12, 2012 by aish

biochemistry
how to calculate a primary standard buffer using Kh2po4 and Na2Hpo4..
January 9, 2013 by crazy

physics
Given three vectors a~=i~4j~+2k~ , b~=3i~+2j~2k~ , c~=2i~3j~+k~ , calculate a~(b~c~)
January 13, 2013 by Anonymous

Calculus
Given f(x)=x+sqrt(x) calculate the tangent line at the point (9,12) y=___?__(x-9)+12
January 30, 2013 by Anonymous

maths
prove that if a is not equal to zero and if a * b = a * c and a ^ b = a ^ c then b = c [Hint: calculate a * (b-c) and a ^ (b-c) vectors mechanics
February 6, 2013 by jenny

Chemistry
Calculate the pH of 75 ml of the buffer composed of .1M HC2H3O2 with .2M NaC2H3O2; to which 9.5 ml of .1M HCl is added.
February 6, 2013 by Kelli

CHEMISTRY
How to calculate the pH of 0.120 M of HClO2? plssss i need the answer asap.
February 9, 2013 by ALANANANANA

Chemistry
If I have 50 mL of Lead(II) Nitrate, it is possible for me to calculate how many mole is 1 mL of the substance? Thanks
February 17, 2013 by Shadow

chemistry
(b) Calculate the amount of zirconium produced (in kg) if a reactor were charged with 310.0 kg and 29.0 kg Na.
February 23, 2013 by Anonymous

chemistry
Calculate the wavelength of a proton with energy 2.45eV. in meter plz
February 23, 2013 by schoolgirl

chemistry
calculate the percentage of water in each of the following hydrates SrCl2*6H2O
February 25, 2013 by payton

Science
Calculate the wavelength of a photon with energy 2.45 eV. Enter the numerical value in m
March 2, 2013 by Anonymous

Science
Calculate the wavelength of a proton with energy 2.45 eV. Enter the numerical value in m
March 2, 2013 by Anonymous

math
Calculate the lenght of a rectangle with area 350cm and breadth 50mm.
March 14, 2013 by Nelly

math
Calculate the breadth of a rectangle with lenght 120mm and area 960m
March 14, 2013 by Nelly

math
Calculate the breadth of a rectangle with lenght 120mm and area 960m
March 14, 2013 by Nelly

chemistry
0.315 M 2(NH4)SO4 and 0.488 M NH3 Calculate concentration of OH
March 16, 2013 by Pepz

chemistry
Calculate whether or not a precipitate will form if 1.40 mL of 0.62 M NH3 are added to 4.4 L of 1.0 10-3 M FeSO4.
March 19, 2013 by Annie

Chemistry
calculate the volume of 0.50 M NaOH needed to saturate 100.0 ml of 0.50 M Zn(NO3)2 with Zn(OH)2
March 24, 2013 by Ale

Chemistry
calculate the volume of 0.50 M NaOH needed to saturate 100.0 ml of 0.50 M Zn(NO3)2 with Zn(OH)2
March 24, 2013 by Ale

Chemistry
Calculate the volume of 0.3MHCL used to neutralise NaOH solution
March 25, 2013 by Chris

math
how do I calculate the volume of a liquid in a graduated cylinder if the radius is 3 cm, and the height is 38
March 25, 2013 by jaxson

chemistry
Calculate the solubility of Mn(OH)2 in grams per liter when buffered at each of the following. (a) pH 7.7 (b) pH 9.6 (c) pH 11.3
March 27, 2013 by hannah

Chem
Calculate [H3O ], [ClO4], and [OH] in an aqueous solution that is 0.170 M in HClO4(aq) at 25 C.
March 27, 2013 by Chris

Chemistry
Calculate the mass of water that will be produced when 5.0 grams of H2 is reacted with excess O2.
March 30, 2013 by Karen

Chemistry
Calculate the mass of water that will be produced when 5.0 grams of H2 is reacted with excess O2.
March 30, 2013 by Karen

chemistry
calculate the yield of CO2 if 30.g of C2H6 reacts with 14.0g of O2. Show work
April 18, 2013 by liz

Chemistry
Calculate the [H+] for: black coffee with a pH of 6.9 (Enter your answer as follows: 1.0E-2 for 0.010)
April 19, 2013 by B

math
12/5x0.6x(0.5x10-3)12= I really need help with this one I cant calculate it can someone help
April 26, 2013 by Yasmine

Chemistry
Calculate the osmotic pressure at 22 C of a 0.25 M solution of a) dextrose, b) magnesium chloride.
May 24, 2013 by Mike

Healthcare Finance
how to calculate the revenue when you don't know the the net income but do have the expense
June 3, 2013 by Chris

statistics
How do you calculate the z-score for a package weighing 29.6 pounds ( round to 2 decimals)?
June 14, 2013 by lina

science
a car travels a distance of 20 km in 6 minutes calculate the speed in 1. km min 2. m/s 3.km/h 4.cm/s
June 19, 2013 by sneh

ChM
Calculate the pressure exerted by 1.2 mol of gas in a volume of 28.2 L and at a temperature of 61 C.
July 6, 2013 by Anonymous

chemistry
calculate the de broglie wavelength of He atom at 27 degree celsius & v=2.4*1000
July 7, 2013 by adi

Chemistry
Calculate the equilibrium constant, k a reaction with delta G= -32.5 kj/mol at 25 degrees C
July 10, 2013 by Malikai

Chemistry
Calculate the number of phosphorus atoms in 17.0g sample of calcium phosphate
September 29, 2013 by Madison

AP Chemistry
assuming a density of 1.0 g/mL, calculate the molarity and mole fraction of 3.0% h2o2
October 4, 2013 by Gabriella

Chemistry 12
Calculate the mass of K2CRO4 needed to make 3.00 L of a 0.0200 M solution.
October 8, 2013 by Riann

science
Calculate the weight of a person with a mass of 67 kg that is holding a 12 kg box on earth
October 10, 2013 by bobby

ut
The acidity constant of acetic acid is 1.8 10-5. Calculate the % error of the measured Ka value.
October 31, 2013 by Anonymous

brief calc
p = 8 − 2q1/3; p = 6 same as before calculate surplus
December 4, 2013 by kyle

chemistry
calculate the percentages by mass of the component element in sodium trioxonitrate(v)
January 28, 2014 by sam

Chemistry
How do I calculate moles from the given litres and mass of the substance (in grams)?
February 23, 2014 by Anonymous

Chemistry
How do I calculate moles from the given litres and mass of the substance (in grams)?
February 23, 2014 by Anonymous

Chemistry
Calculate [OH−] for 1.90mL of 0.190M NaOH diluted to 1.50L .
February 25, 2014 by JJ

Algebra
what is the formula used to calculate the surface area for a square pyramid?
March 4, 2014 by Steve

Algebra
what is the formula used to calculate the lateral area for a square pyramid?
March 4, 2014 by Steve

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