July 25, 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: 73,445

A solution is prepared by mixing 3.5 g of nitric acid with enough water to make 8.00 L of solution. Find the [H3O+], [OH-], pH and the pOH
March 7, 2012 by Mary

Write the chemical equation for the reaction that occurs when you add NaOH solution to NaH2PO4/Na2HPO4 buffer solution
March 23, 2012 by Megan

To what volume must 481 mL of 12 M Ca(OH)2 solution be diluted to make a 2 M Ca(OH)2 solution? a)1.352L b)2.886L c)2.10833L d)none of the above
April 4, 2012 by Allison

If 3.5 ml of distilled water is added to 1.5 ml of a 0.150M solution of CoCl2 what is the concentration of the resulting solution? please show the work
April 9, 2012 by Tonya

A solution has [Al^3+]=8.010−2 M and [HC2H3O2]= 1.10 M. What is the maximum quantity of NaHC2H3O2 that can be added to 200.0 mL of this solution before precipitation of Al(OH)3 begins?
April 13, 2012 by John

you dissolve 0.70 moles of HCI in enough water to prepare 250ml of solution. what is the molarity of the solution you have prepared
April 15, 2012 by aileen

If you have a 12M container of HCl avaliable. How much of this solution is needed to make up a 5.0L solution of 0.10M concentration?
May 7, 2012 by Sue

What mass of chromium II chlroide (CrCl2) is dissolved in 150.0mL of solution to prepare .250M solution? Please Help
May 28, 2012 by Jack

Solve using the eliminattion method. Show your work. If the system has no solution or an infinite number of solution, state this. -2x-8y==42 -4x+6y=-18
July 5, 2012 by Ann

Chem 2
A solution is made by mixing 47.0 mL of ethanol, C2H6O, and 53.0 mL of water. Assuming ideal behavior, what is the vapor pressure of the solution at 20 C?
July 14, 2012 by Pagye

Chemistry II
A solution is made by mixing 38.0 mL of ethanol, C2H6O, and 62.0 mL of water. Assuming ideal behavior, what is the vapor pressure of the solution at 20 C?
July 17, 2012 by Sam

10.0 g of KCl and 18.5 g of CaCl2 were dissolved in 500 mL of water. How many mL of 1.57 M AgNO3 solution would be required to precipitate all Cl- from the solution?
October 19, 2012 by Jared

Chemistry 1115
What is the chemical equation for the reaction that occurs when you add 0.1 M NaOH solution to the HC2H3O2-NaC2H3O2 buffer solution?
November 25, 2012 by Marci

A solution is found to contain 1 x 10-4 OH− ions, determine the pH of this solution. I did this problem and got 4 but it is not going in as correct. -log(1*10^-4)=4
November 27, 2012 by Lara

Math: Please check answer
3. Which of the following is a solution of x + 14x + 112 = 0? If necessary, round to the nearest hundredth. A.) x = 0.24 B.) x = 4.24 C.) 4.24 *D.) no solution Thank you
February 28, 2013 by cassie

0.15g of hydrogen chloride HCl is dissolved in water to make 8.0L of solution. What is the pH of the resulting hydrochloric acid solution?
March 1, 2013 by Jonah

A lab technician determines the boiling point elevation of an aqueous solution of a nonvolatile, nonelectrolyte to be 1.62C. What is the solution's molality?
March 3, 2013 by Catherine

Honors Chemistry
what volume of solution does a 3.0 molar solution need to have in order to contain 1.8 moles of sodium sulfate?
April 3, 2013 by Erin

A solution is made by dissolving 0.10 mole of Na2SO4 in water to a final volume of 1.00 L. What is the molar concentration of Na+ ions in the solution?
April 5, 2013 by Dolores Ramirez

A 2.5% KCl solution is prepared by dissolving enough of the salt to give 181.4 g of solution. What mass (g) of water is required?
April 8, 2013 by Linzy

A solution contains 25.5 g of NaCl dissolved in sufficient water to give a total mass of 325.0 g. What is the molality of the solution
May 10, 2013 by Adrian

Chemistry help
2.00g of NaOH are dissolved in water to make 2.00L of solution. What is the concentration of hydronium ions, [H3O+], in this solution?
July 29, 2013 by Anonymous

0.15g of hydrogen chloride (HCl) is dissolved in water to make 6.5L of solution. What is the pH of the resulting hydrochloric acid solution?
February 17, 2014 by Anonymous

pharmacy math
In what proportion should you combine 1:30 soaking solution and distilled water to create a 500ml solution of 1:70 concentration?
March 3, 2014 by Anonymous

Chemistry 104
A current of 3.40 A is passed through a Ni(NO3)2 solution for 1.80 hours. How much nickel is plated out of the solution?
May 8, 2014 by Janavi

Chemistry 104
A current of 3.40 A is passed through a Ni(NO3)2 solution for 1.80 hours. How much nickel is plated out of the solution?
May 8, 2014 by Mona

Chemistry 104
A current of 3.40 A is passed through a Ni(NO3)2 solution for 1.80 hours. How much nickel is plated out of the solution?
May 8, 2014 by Rizwan

How many milliliters of 0.50M NaOH solution are required to titrate 20.0mL of a 0.20M H2SO4 solution to an end point?
December 4, 2014 by Anonymous

An aqueous solution that is 30.0 percent sulfuric acid (H2SO4) by mass has a density of 1.105 g/mL. Determine the molarity of the solution.
February 2, 2015 by victoria

Hi, can you help me with this question: "you have 25.00 mL of a 0.1000 M sugar solution. How much water must be added to make a 0.025 M solution? Thank you.
March 29, 2015 by Cassandra

How is a 2.0 M solution of HF different from a 2.0 M solution of acetic acid? Would the two solutions have the same pH level? Why or why not? Please help!
May 26, 2015 by Isabelle

Find the particular solution to y ′ = sin(x) given the general solution is y = C − cos(x) and the initial condition y(pi/2)=1
July 17, 2015 by Anonymous

If the reaction 2H2O2 →2H2O+O2 has a 45% yield, what is the molarity of the H2O2 solution if 2.5 L of this solution pro- duces 150 g of O2?
May 29, 2016 by Andrea

How many grams of potassium can be obtained from the decompostion of 100 grams of KCl?
November 11, 2010 by Zach

What will be the concentration if 40 grams of sugar is added to 100 grams of water?
July 24, 2011 by MANALI

A solution prepared by dissolving 3.00 grams of ascorbic acid (vitamin C, C6H8O6), in 50.0 grams of acetic acid has a freezing point that is depressed by T = 1.33 oC below that of pure acetic acid. What is the value of the molar freezing point-depression constant for acetic ...
February 18, 2013 by Ace

No more solute can dissolve in a solution if it is a--------solution.
January 7, 2009 by gay

intermediate algebra
1.(5,1)is a solution to the equation2x-3y=7.what does this mean? 2.(-3,_)ia solution of =4-3x
February 20, 2010 by keke

x^2-7x-98=0 whT is the smaller x solution and the larger x solution
March 29, 2010 by ewrwerwe

Determine whether -4 is a solution of the inequality x>-4 Is -4 a solution?
May 20, 2011 by Tina

what is the molarity of a solution containing 15.0 g of NaCl in 1.25 L of solution?
May 22, 2011 by lucky

the (OH) of ammonia solution is 4.0 x10-2 M. What is the (H3O+) of the solution?
October 21, 2011 by Anonymous

what is the molarity of a solution of the strong base Ca(OH)2 in a solution that has a pH of 10.80?
April 12, 2012 by Sydney

What is the molarity of a solution in which 58 g of NaCl are dissolved in 1.0 L of solution?
May 15, 2012 by adam sam

Solve the equation and check the solution: -4(t+7)-(t+6)=10 the solution t is:
May 16, 2012 by Angela

Does |x^2-3x+3|=3 have a solution? My answer was that there isn't a solution. Am i right?
August 17, 2012 by Unknown.

how ti distinguish NH4OH solution from NaOH solution
October 2, 2012 by bhanu

Consider a 9.5e-10 M solution of HClO4 at 283 K. What is the pH of the solution?
December 7, 2012 by Chris

How do you make 300 ml of a 2M solution from a 50 M stock solution?
February 1, 2013 by Monika

7th grade
if 60 grams of potassium chlorate is dissolved into 100cm3 of water at the temperature of 60 degrees celsius is the solution saturated unsaturated or supersaturated?
February 19, 2010 by sean

What mass (in grams) of potassium acetate, KC2H3O2, must be added to 140 mL of 0.010 M acetic acid to form a buffer solution with a pH of 4.5? (Ka (HC2H3O2)= 1.8 x 10-5)
March 5, 2012 by Anonymous

Ap Chem
how many milliliters of a 0.9 molar HCl solution are needed to react completely with 12 grams of zinc according to the following equation 2HCl+ Zn yields ZnCl2+ H2
September 10, 2012 by Chasm

Phamacy math
One teaspoonful diluted to a quart results in a 1/5000 solution. What is the amount of potassium permanganate in grams required to fill this prescription?
September 21, 2012 by Nick

What is the molarity of a salt solution that is made from 31.0 grams of Ca3(P04)2 placed in a volumetric flask and filled to the 2 liter line with distilled water?
March 18, 2013 by Matt M

A current of 4.00 A is passed through a solution of AgNO3 for 1.00 hr. What mass of silver is deposited at the cathode? (In grams) Use Faraday's constant F = 9.65x10^4 C/mol
January 11, 2015 by Jon

Hydrochloric acid and sodium hydroxide are mixed together to form salt and water. During the reaction, the temperature of the solution increases. Which of these best explains why this is considered to be a chemical change? No energy was destroyed. Heat was given off. It ...
August 2, 2011 by Anonymous

When saccharin is added to pure water, the freezing point of the resulting solution drops to -5.0C, Calculate the freezing point depression of the aqueous saccharin solution. Note: freezing point of pure water is O.0C... Stuck thanks so much!
January 16, 2013 by Lala

A solution contains an unknown mass of dissolved barium ion. When sodium sulfate is added to the solution, a white precipitate forms. The precipitate is filtered and dried and then found to have a mass of 210 mg. What mass of barium was in the original solution? (Assume that ...
October 14, 2015 by Nicole

Please help!!!! Solve each system graphically. Be sure to check your solution. If a system has an infinite number of solutions, use set-builder notation to write the solution set. If a system has no solution, state this. 6x - 2y = 2, 9x - 3y = 1 My answer: Equation 1 X-...
October 11, 2010 by Jordyn

May 15, 2012 by janika

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

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(Please help!!)
For a chemistry lab the experiment was to carry out an acid-base titration to determine the exact concentration of a sodium hydroxide solution. Two trials were completed and the data collected was: mass of weighing paper, mass of weighing paper + KHP, mass of KHP, initial ...
October 23, 2011 by Hannah

A 0.753 m solution of the solute CH3CN dissolved in the solvent C6H6 is available. Calculate the mass ( g ) of the solution that must be taken to obtain 3.274 mol of CH3CN. Additional info: Molar Mass (g/mol) CH3CN 41.05 C6H6 78.11 Density ( kg/L ) CH3CN 0.7857 C6H6 0.8786 ...
May 8, 2010 by Kyo

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

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

OKOK I know that I have posted this question but I just don't understand the last part. 50.0 ml of a 0.0500 M solution of lead (II) nitrate is mixed with 40.0 ml of a 0.200 M solution of sodium iodate at 25C. Calculate the Pb2+ and IO3- concentrations when the mixture comes ...
May 16, 2007 by mel

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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