Wednesday

May 4, 2016
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 1.20×10−2 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 1.20×10^−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 25°C 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~=Ài~À4j~+2k~ , b~=3i~+2j~À2k~ , c~=2i~À3j~+k~ , calculate a~Á(b~Âc~)
*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*