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May 28, 2016

Search: Calculate the solubility (in grams per 100 mL of solution) of magnesium hydroxide in a solution buffered at pH = 12.

Number of results: 72,809

Math
1) Find the solution to the following system of two linear equations, if it has a solution. 2x-y=3, -x+y=1 2Find the solution to the following system of two linear equations, if it has a solution. 2x+y=4, x+3/2y=3
October 13, 2011 by Megan

Chemistry
A 2.00 ml sample of an aqueous solution of hydrogen peroxide, H2O2 (aq) is treated with an excess of Kl (aq). The liberated I2 requires 12.40 mL of 0.1025 M Na2S2O3, for its titration. Is the H2O2 up to the full strength (3% H2O2 by mass) as an antiseptic solution? Assume the ...
October 12, 2008 by Saira

chemistry
One has 100.0 grams of water and 45.0 grams of ice in a flask at 0 C. (a) what is the total volume?
March 6, 2010 by Anonymous

chemistry
If I have 80 grams of NaCl in 100 grams of water at 20 C, is that undersaturated, saturated or oversaturated?
July 10, 2011 by g

chemistry
Caclulate the Ka of nitrous acid if a 0.200 mol/L solution at equilibrium at SATP has a percent ionization of 5.8% ka=(H+)(NO2-)/(HNO2-) If 1.59% ionized then after ionization H+ = 0.2 x 0.058 =? NO2- = 0.2 X 0.058=? HNO2=0.2 x (1.0 - 0.058) If solution is 5.8% ionized, than ...
April 7, 2008 by Dustin

O- chemistry
During a recrystalliztion experiment, a student allows the hot solution to cool to room temperature, then chills the solution in an ice bath. Is the student using correct recrystallization technique? Why does the student not simply chill the hot solution in an ice bath initially?
September 29, 2008 by David

algebra 1
A chemist has one solution containing 30% insecticide and another solution containing 50% insecticide. How much of each solution should the chemist mix to get 200 L of a 42% insecticide? My teacher explained how to set up the problem: 3x+5y=84 x+y=200 what I dont get is why ...
December 4, 2014 by ben

Chemistry
A precipitate will be formed when an aqueous carbonic acid soution is added to what other aqueous solution? A. ammonium chloride B. calcium hydroxide C. Sodium Chloride D. Potassium carbonate E. Nitrous acid
June 19, 2010 by Ellie

science/chemistry
thank you! What is the molar concentration of hydroxide ions in a solution with a pH of 6? Find the concentration of H ions first.. [H+]= antilog -ph Then, find [OH-] [OH-]= 1*10^-14/[H+]
June 5, 2007 by Devon

Chem
Methylaime, CH3NH2. If a 0.100 mol/L solution of methyamine has a pH of 11.80, calculate the ionization constant for the weak base. What is an ionization constant. Is it just K? This is what I did so far: 11.80 = -log (concentration of h3o+) 10^-11.80 = (concentration of h3o...
July 23, 2009 by Lena

chemistry
I am in the process of calculating the hydrogen ion concentration in a .25litre solution of sulfuric acid,.21g of sulfuric acid was disolved in water to make the solution. I have calculated the molarity of the acid to be 2.14x10^-3 mol per litre. I also need help in ...
March 5, 2007 by ruby

College algebra
One health club charges a monthly fee of $100 and an extra $5 for every visit. Another health club charges $103 per month and $4 for every visit. How many visits in a month would make the cost of each health club equal? Suppose x is the number of visits per month. Fill in the ...
May 26, 2016 by Brandi

chemistry
how many grams of CaCl2 would be dissolved in 1.9 liters of a 0.2 molarity solution of CaCl2?
January 13, 2010 by q

science
How many grams of CuSO4 .5H2O are needed to prepare 50 ml of 0.30M CuSO4 solution
March 7, 2010 by kesiha

Chemistry
How many grams of K2SO4 would you need to prepare 1500 g of 5.0% K2SO4 (m/m) solution?
April 26, 2010 by Jack

Chemistry
How many grams of NiSO4*6H2O are needed to prepare 200*10^2 mL of a 3.5*10^-2 M NiSO4 solution?
February 15, 2011 by Mattie

Chemistry
How many grams of MgCl2 are required to make 350mL of a 0.56M solution of MgCl2?
February 28, 2011 by Jose

chemistry
How many grams of HCl must be added to make 1 liter of a 2.0 M HCl solution
June 23, 2011 by Chris

Chemistry 101 college
How many grams of chloride ions are in a 2.5L of a 1.0 M calcium chloride solution?
July 19, 2011 by Katie

Chemistry
How many grams of chlorine are needed to make 5.00 X 10^6 g of a solution that is 1.50 ppm chlorine by mass?
December 5, 2011 by Sam

more math needed
You have a 70% dextrose solution. How many grams of dextrose are in 400ml?
February 24, 2012 by Vicki

Gen. Chem 1
The density of 18% nh4cl is 1.05 grams/ml. What mass of nh4cl is in 425 ml of the solution?
March 19, 2012 by Zack

scince,chemistry
How grams of NACL are present in a 250-g solution containing 9% NACL?
June 24, 2012 by sharlyn baquita

Chemistry
To make some solution 500mL H2SO4 0.3 M. How many grams of H2SO4 are used?
July 31, 2012 by Natya

chemistry
How many grams of HCL must be added to make 1 liter of a 2.0 M HCl solution?
September 27, 2012 by Rachael

chemistry
How many grams of HCL must be added to make 1 liter of a 2.0 M HCl solution?
September 27, 2012 by Rachael

chem
How many grams of KBR, could be recovered by evaporating 650 g of a 15.0% KBr solution of dryness?
November 21, 2012 by tracy

Chemistry
How many grams of CuCl2 are required to prepare 1270. g of a 1.75% (by mass) CuCl2 solution?
December 2, 2012 by John

Chemistry
How many grams of AgNO3 (silver nitrate) are contained in 425 mL of a .15 M solution of AgNO3?
January 29, 2013 by Jessica

chemistry
how many grams of cacl2 are needed to prepare 6.00L of a 0.400M CaCl2 solution
May 30, 2015 by jen

Chemistry
How many grams of (Bef2) are present in 655ml of a 0.442 M solution of (BeF2) Please help
June 21, 2015 by Ocean

AP Chemistry
In a saturated solution of Zn(OH)2 at 25 degrees Celsius the value of [OH-] is 2.0x10^-6M. What is the value of the solubility-product constant, Ksp, for Zn(OH)2 at 25 degrees Celsius? A. 4x10^-18 B. 8x10^-18 C. 1.6x10^-17 D. 4x10^-12 E. 2x10^-6 Help? Thank you!
March 9, 2010 by Anonymous

algebra
A consumer electronics company sells 6.7 million MP3 players per month at a price of $100 apiece; when the price is lowered to $80, the company sells 10.2 million players per month. How many MP3 players can the company expect to sell per month at a price of $75? (100, 6.7) and...
February 26, 2011 by bianca

chemistry
50.0 mL of a solution of HCl is combined with 100.0 mL of 1.15 M NaOH in a calorimeter. The reaction mixture is initially at 22.4C and the final temperature after reaction is 31.2C. What is the molarity of the HCl solution? You may assume that there is an excess of base (so ...
February 28, 2015 by Marcus

chemistry
Calculate how much K3Fe(CN)6 [MW: 329.24] you would need to weigh out to make a 1x10-3 M solution dissolved in 0.2 M NaNO3 in a 100 ml volumetric so far i have worked out that 0.329 g will give me the 1x10-3 M, but im confused when it is dissolved into the NaNO3.
October 8, 2014 by QJ

CHEM 1LB
how many grams of KIO3 are needed to make 50.0 mL of a 1.2 M KIO3 solution
January 17, 2010 by Anonymous

chemistry
what mass of a 15% (m/m) NaOH solution contains 125 grams NaOH?
August 19, 2010 by Anonymous

chemistry
how many grams of NaOH do you need to prepare a 3.00 x 10^2 mL stock solution of 2.00 M NaOH
October 7, 2010 by jane

Chemistry
How many grams of NaBr are contained in 85.0 mL of a 2.10 M NaBr solution? I'm not sure how to go about this..
December 1, 2010 by Roxie

Chemistry
How many grams of Li2SO4 are needed to prepare 250.0 mL of a 4.0% m/v Li2SO4 solution?
April 30, 2011 by Debbie

Chemistry
How many grams of NaCl are neeeded to make 100ml of a 2M solution of NaCl
July 13, 2011 by corinna

Chemistry
To produce 3.00 L of a 1.9 M solution of NaOH, how many grams of NaOH must be dissolved?
April 11, 2012 by Jessica

Chemistry
How many grams of sucrose are needed to make 875 mL of a 39.0% (w/v) sucrose solution?
January 27, 2013 by Chemistry

Chemistry
If 45g of a 2.2% NaHCo3 solution is to be prepared how many grams of NaHCo3 are needed
April 16, 2013 by Karla

chemistry
How many grams of methanol, CH3OH, are there in 150.0 mL of a 0.30 M aqueous solution of methanol
November 4, 2013 by mary

Biology
How many grams of glucose are needed to make 500ml of a 3.0M solution of glucose?
January 15, 2015 by Anonymous

chemistry
How many grams of sucrose (C12H22O11) are in 2.50L of 0.710M sucrose solution?
April 1, 2015 by Samantha

Chemistry
How many grams of KBr are contained in 200 mL of a 0.310M KBr solution?
May 27, 2015 by Lauren

Chemistry
How many grams of NaOH are needed to make 450mL of a 2.5%(m/v) NaOH solution?
July 1, 2015 by Telimm

Chemistry
how many grams of NaOH do you need to prepare a 3.00 x 10^2 mL stock solution of 2.00 M NaOH
October 7, 2015 by Alexander

Chemistry
Acetic acid is a polar molecule and can form hydrogen bonds with molecules. Therefore, it has a high soulubility in water. Yet acetic acid is also soluble in benzene (C6H6), a nonpolar solvent that lacks the ability to form hydrogen bonds. A solution of 3.8g of CH2COOH in 80 g...
October 18, 2010 by Karly

thermodynamics?
calculate the number of grams of glycerol, C3H5(OH)3 (MW=92.1 g/mol), that must be dissolved in 520 grams of water to raise the boiling point to 102.00 degrees Celsius. this whole chapter really lost me. delta T = Kb*molality delta T = 2 degrees. Kb = boiling point elevation ...
April 21, 2007 by chris

Chemistry
Assuming an efficiency of 38.60%, calculate the actual yield of magnesium nitrate formed from 145.9 g of magnesium and excess copper(II) nitrate. I got 230.5g but it isn't right.. I got 6 mols of Mg then calculated molar mass of Mg(NO3)2 and got 148.31 and then multiplied the ...
April 22, 2014 by Clare

Chemistry
1. Imagine you have a saturated solution of Ca(OH)2, at equilibrium, that has some undissolved Ca(OH)2 precipitated on the bottom of the test tube. If you add an additional scoop of Ca(OH)2 to the solution will concentration of [OH-] in the solution (increase, decrease, or be ...
March 16, 2015 by Caroline

chemistry
A solution was made by dissolving 5.15 mg of hemoglobin in water to give final volume of 1.00 mL. The osmotic pressure of this solution was 1.97 x 10^-3 atm at 25C. Calculate the molar mass of hemoglobin. pi = iMRT i = 1 since hemoglobin is nonelectrolyte and doesn't ...
September 14, 2012 by Wiped Out

chemistry
We did a LAB where we used a spectrophotometer to measure the absornency of a solution. It was a bluish color, so the question is.... What could be done to modify this experiment if the original solution was colorless? HINT: you can NOT add a coloring agent such as food ...
March 11, 2009 by jaseline

calculus maths
Hi can some one help, explain the following please. I seem to have issues with this: 1- Find the corresponding particular solution (in implicit form) that satisfies the initial; condition y = when x = 0. 2- Find the explicit form of this particular solution. 3- What is the ...
February 15, 2011 by Claire

Chemistry
A dilute aqueous solution of an organic compound soluble in water is formed by dissolving 2.35 g of the compound in water to form 0.250 L solution. The resulting solution has an osmotic pressure of 0.605 atm at 25 Celsius. Assuming that the organic compound is a nonelectrolyte...
February 6, 2012 by Jeremy

Biology
A student wishes to prepare 300 mL of 0.25 M sucrose. He puts 25.7 g of sucrose in a beaker and then adds 300 mL of dH2O. The total volume of the solution after the sucrose has been dissolved is 330 mL. a) What did he do wrong when preparing his solution? b) What is the actual...
September 14, 2014 by Ki

chemistry
2.) If you pass 10.0mL of a 50.0mL solution of [Co(en)2Cl2]Cl that has been reduced with Zn through a cation exchange column, you will obtain a solution that has three H+ ions for every Co3+ ion that was originally present in the sample. These H+ ions are titrated with 0.10-M ...
October 26, 2014 by Anonymous

chemistry
2.) If you pass 10.0mL of a 50.0mL solution of [Co(en)2Cl2]Cl that has been reduced with Zn through a cation exchange column, you will obtain a solution that has three H+ ions for every Co3+ ion that was originally present in the sample. These H+ ions are titrated with 0.10-M ...
October 26, 2014 by xx

chemistry
Use a balanced redox equation to answer the following question. 71.7 mL of 1.13 x 10-4 mol L-1 potassium ferricyanide solution is required to react completely with 43.9 mL of ascorbic acid solution (under acidic conditions). What is the concentration of the ascorbic acid ...
October 17, 2015 by hm

Algebra
Solve the logarithmic equation. Be sure to reject any value of x that is not in the domain of the original logarithmic expression. ln (x+4)=1 What is the exact solution? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. The...
February 3, 2016 by edward

Chemistry
How many grams of CH3OH must be added to water to prepare 420.0 mL of a solution that is 5.0 M CH3OH?
March 10, 2010 by Camarra

chemistry
How many grams of cadmium must react to displace 13.0 g of copper from a solution of copper nitrate?
October 12, 2010 by tata

chemistry
How many grams of cadmium must react to displace 13.0 g of copper from a solution of copper nitrate?
October 12, 2010 by tata

chemistry
what is the number of grams needed to prepare a 1.23 M solution of nitric acid if 250.0 mL are needed?
May 19, 2011 by Anonymous

chemistry
What mass of KNO3 in grams would be required to prepare 0.6 liters of a 1.8 M KNO3 solution?
November 29, 2011 by Megan

Ochem
how many grams of NaOCl are in 12.14 mL of a 6.65% (wt./vol.) NaOCl solution? Please help me set this up... I have no idea what to do.
February 1, 2012 by Seerat

Chemistry
To prepare 100g of 19.7% by weight solution of NaOH.how many grams each of NaOH and H2O are needed?
June 21, 2014 by akhmal

Science
How many grams of CH3SH must be added to water to prepare 410mL of a solution that is 2.5 M CH3SH?
November 4, 2014 by Eli

Chemistry
How many grams of chlorine gas are needed to make 5.40 x 10 6 g or a solution that is 1.40 ppm chlorine by mass?
November 5, 2014 by Dustin

Chemistry
How many grams of Fe(NO3)2 are present in 555mL of a 0.650 M solution of Fe(NO3)2?? I have no clue what to do??
June 21, 2015 by Ocean

Chemistry
How many grams of Fe(NO3)2 are present in 555mL of a 0.650 M solution of Fe(NO3)2?? I have no clue what to do??
June 21, 2015 by Ocean

Chemistry
How many grams of sucrose will be necessary to prepare 300 ml of a 5% solution of sucrose (342.0 g/mol)
May 9, 2016 by Adam

Chemistry
How many grams of carbon dioxide will be made when 100 grams of methane burn in an excess of oxygen
June 5, 2011 by Mary

Chemistry
If 175 grams of CsCl in 100 grams of water at a temperature of 100C will it be saturated or unsaturated?
August 24, 2014 by Anna

chemistry
0.197g of magnesium is burned in air 2Mg + O2 ---> 2MgO However, some of the magnesium reacts with nitrogen in the air to form Magnesium nitride instead : 3Mg + N2 --->Mg3N2 So you have a mixture of MgO and Mg3N2 weighing 0.315g.Determine what percentage of the Mg formed...
May 4, 2016 by Chansa

chem
the max # of grams of K that can be obtained from 100.grams of KHCO3?
November 24, 2012 by mary

College Chemistry
If 69.3g of magnesium chloride were produced from a process with a known yield of 78.3%, find the mass of carbon tetrachloride in grams that was used. Equation: 2CCl4 + MgCrO4 -> 2COCl2 + CrO2Cl2 + MgCl2 I was able to solve it but I just don't understand why it's wrong. ...
March 31, 2010 by Bach

science
what amount of ammonium chloride do I need to make a 100 micromolar solution?
March 29, 2010 by Michael

chemistry
0.100 M of NaNO2 and 0.050 HNO2. what is the H3O of this solution? set up please.
April 26, 2010 by david.

chemistry
How much concentrated 12 M hydrochloric acid is needed to prepare 100.0 mL of a 2.0 M solution?
May 11, 2010 by {RayRay} NEED HELP PLZ

College Chemistry
Molarity of .100 mole of urea (CH4N2O) in 250.0 mL of solution
February 8, 2011 by Audrey

chem
what is the molarity of iodine ions in a 100 mL solution containing 2.50g of MgI2?
April 24, 2011 by tracy

chemistry
how much concentrated 12 M hydrochloric acid is needed to prepare 100 mL of a 2.0 M solution?
March 28, 2012 by dellanie

Algebra
Y^2 - 20y + 100 = 64 Looking for exact solutions. I know they are integers, but...is there a decimal solution? Thanks
April 28, 2012 by ShelbyA

chemistry
What is the molarity of a solution prepared by dissolving 2.41 g of potassium iodide, KI in 100 mL of water?
May 6, 2012 by Ambra

Chem
what is the pH of solution made by mixing 100 mL of 0.030M HCL with 200 mL water?
September 16, 2012 by John

chemistry
How many moles of sulfate ions are in 100 ml of a solution of .002 M Fe2(SO4)3?
March 19, 2013 by Moyer

chemistry
If 75 g of NaNO3 is dissolved in 100 g of H2O at 10C, is the solution saturated, unsaturated or supersaturated?
May 22, 2014 by Hayden

Math
Two acid solutions are to be mixed together.  Solution A is 30% acid by volume.  Solution B is 70% acid by volume. The 800 mL mixture is 54% acid by volume. The amount of Solution A, rounded to the nearest milliliter, is ____________mL.
July 27, 2015 by Amy

Chemistry
Are propane, methoxymethane, and ethanol soluble in water? yes http://www.chem.lsu.edu/lucid/tutorials/solubility/Solubility.html Henry is wrong.
June 11, 2007 by Raj

chemistry
A solution is made by dilution 400.mL of 2.0 M HCL to a final volume of 1000. mL. what is the pH of this solution? i'm stuck on this question i have no idea what to do, can anyone help? thanks:)
May 15, 2008 by Miley

alegbra
I need help with these problem someone told me that you was not helping them. Please help me!! 5/4x +1/8x=11/8 +x The solution is x= Solve by the elimination method. 4x +5y=5 8x +10y=10 What is the solution of the system.
April 7, 2009 by Elaine

Chemistry
If 535 Ml of gaseous HCL, at 26.5 degrees Celsius and 747mm Hg, is dissolved in enough water to prepare 625 ml of solution, what is the PH of the solution?
August 5, 2009 by ChemHurts

Chemistry-Please help
Find the percent by mass of sodium chloride in a 1.45M NaCl solution. The density of the solution is 1.05g/mol .
October 5, 2009 by Rose

chemistry.
2.02g of KNO3 ( Mz=101) is dissolved in sufficient water to prepare 0,500 dm3 of solution. What is the concentration of this solution in mol dm?
November 5, 2009 by Mark

9th grade
10 gm of silver nitrate solution is added to 10 gm of sodium chloride solution what change in mass do you expect after the reaction and why?
November 12, 2009 by Gazal

9th grade
10 gm of silver nitrate solution is added to 10 gm of sodium chloride solution what change in mass do you expect after the reaction and why?
November 12, 2009 by Princess

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