January 28, 2015

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

Number of results: 62,550

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

Calculate the percent by mass of the solute in each of the following aqueous solutions. (a) 5.10 g of NaBr in 78.2 g of solution
April 26, 2012 by katiy

how to calculate molar concentration of a 500 millimeter solution that contains 20 gram of CaBr2 ?
June 3, 2012 by star

Calculate the molarity and normality of a solution containing 9.8 g of H2SO4 on 250 cm cube of the solutiom
June 29, 2012 by Shafket

calculate the percent by mass of solute in solution that contains 3.85 g of calcium chloride in 78.5g of water
February 21, 2013 by Anonymous

a solution contain 0.50M propionic acid and 0.20M sodium propionate calculate ph? ka=1.3 10^-3
March 2, 2013 by kanks

Calculate [OH- ] and pH for each of the following strong base solutions. (Kw = 1.0 10-14.) 3.155 g of KOH in 460.0 mL of solution] how do you do this
March 3, 2013 by hannah

Calculate the pH of a solution created by adding 5.00g of LiF to 150.0mL of 1.25M HF. Ka = 7.2 x 10-4
March 7, 2013 by A

Calculate the pH of a solution formed by mixing 124.8 mL of 0.481 M KF and 130.7 mL of 0.084 M HClO3.
March 13, 2013 by Margaret

Calculate the pH of a buffer solution containing 1.0 M ammonia (NH3 ; Kb = 1.8 x 10-5) and 1.0 M ammonium chloride (NH4Cl).
March 20, 2013 by Nick

calculate the volume of 1.07M phosphoric acid solution necessary to react with 22.9 ml of 0.150M Mg(OH)
May 1, 2013 by Juan

physical science
calculate the number of moles of H2SO4 wich were added to the NaOH solution
September 30, 2013 by gill

Calculate the pH of a 3.0010-4 M solution of the strong acid HClO4. Round your answer to 3 significant digits.
October 10, 2013 by HELP ASAP PLEASE

calculate the mass percent of a solution that is prepared by adding 62.3g of NaOH to 343g of H2O?
October 16, 2013 by lima

Calculate the mass% of different element present in H2SO4. Also show the solution.
June 13, 2014 by Ragini

Calculate the value (calories) for the heat of solution. Mass of NaOH: 2.03 g ΔT for reaction A : 8 C
October 24, 2014 by Maria

Calculate the molar H3O and ClO3 concentrations of a .28 M solution of perchloric acid (HClO3)?
November 19, 2014 by Leroy

Calculate the freezing and boiling points of a solution containing 14.9g FeCl3 in 176g water.
December 11, 2014 by Kate

When someone complains about a problem,is it a good idea to quickly suggest a solution? A. Yes, because a quick suggestion shows you think quickly. B. Yes, because offering a solution shows that you care about the other person. C. No, because the other person may not be ready ...
September 10, 2012 by Deborah Roberts

how many atoms of magnesium are in the magnesium molecule?
October 29, 2012 by mable

How many moles of magnesium are in Magnesium Chloride?
October 25, 2014 by Gina

A total of 2.00mol of a compound is allowed to react with water in a foam coffee cup and the reaction produces 185g of solution. The reaction caused the temperature of the solution to rise from 21.0 to 24.7C . What is the enthalpy of this reaction? Assume that no heat is lost ...
November 25, 2011 by Yuli

Suppose a student used 28.4 ml of 0.100 M NaOH solution to neutralize the 25.0 ml of the lemon juice sample which contains citric acid (H3A)in it. H3A + 3NaOH -----> Na3A + 3H2O Molar mass of citric acid = 192.2 g/mole a)What is the molarity(M)of citric acid(H3A)in lemon ...
December 14, 2014 by Nam Le

the solubility of Ag3PO4 (in water) is 6.7 x 10^-3 g/L. what is the molar solubility>
November 29, 2010 by AJ

What is the difference between solubility and solubility curve?
March 5, 2014 by Abhishek

How many milliliters of a 0.25 M sucrose solution contain 2.0 grams? The molar mass of sucrose (C12H22O11 ) is 342.3 g/mol. Need the formula to understand how to continue with more problems.
November 19, 2012 by V

How many milliliters of a 0.5 molar HCl solution are needed to react completely with 15 grams of zinc according to the following equation? ? HCl+? Zn→? ZnCl2 +? H2 Answer in units of mL
October 28, 2013 by Anonymous

How many milliliters of a 0.5 molar HCl solution are needed to react completely with 15 grams of zinc according to the following equation? ? HCl+? Zn→? ZnCl2 +? H2 Answer in units of mL
October 28, 2013 by Anonymous

An electrochemical cell is created using gold and magnesium half-cells. a. Determine which half-cell will undergo oxidation and which will undergo reduction, identify anode and cathode, and calculate the voltage for the cell. You do not need to diagram the cell. b. If the mass...
November 27, 2010 by Adam

An electrochemical cell is created using gold and magnesium half-cells. a. Determine which half-cell will undergo oxidation and which will undergo reduction, identify anode and cathode, and calculate the voltage for the cell. You do not need to diagram the cell. b. If the mass...
November 30, 2010 by Jeffery

what is a liquid solution and a gaseous solution? [define plz] liquid solution: sea water gas solution: air i don't need examples. i need definitions. they are not in my book. a liquid solution is a mixture of atoms/ions/chemicals, etc. dissolved in water. For example sea ...
May 15, 2007 by revie

A solution of ferrous sulfate (FeSO4) is titrated with a solution of potassium permanganate in sulfuric acid. The balanced half reactions are as follows: 10FeSO4 + 5 H2SO4 --> 5 Fe2(SO4)3 + 10 H ^+ +10e^- and 2 KMnO4 + # H2SO4 +10e^- --> 2 MnO4 + K2SO4 + 8 H2O. The gram...
January 5, 2010 by amy

A student prepared a .10M solution of acidic acid. Acidic acid has a Ka of 1.75 x 10-3. What are the hydronium ion concentration and the PH of the solution? I think the PH is 1.76 because I hit -log(1.75 x 10-3) on my calculator and thats what I got thanks in advance for your ...
March 21, 2007 by Jodi

A mixture of 3.00 g of silver and copper metals was dissolved in excess nitric acid. Resulting salts, silver(I) nitrate and copper(II) nitrate, were isolated and dissolved in enough water to make 0.100 L of a solution with a total concentration of the nitrate ion equal to 0....
September 29, 2014 by al

A student was given 100mL of HCL solution in a 250mL beaker and told that the HCL was 0.11M. The student was also given phenolphthalein indicator and 250 ML of 0.1234 M NaOH. The student first filled a buret with NaOH solution. The student then placed an appropriate volume of ...
November 21, 2013 by Lenny

Osmosis and diffusion lab five eggs weighing 50 grams each have soaked in 30% surcose solution for 24 hours. One egg is then placed in 100 millitiers of each of the following sucrose solutions: 15%, 25%, 30%, 40%, 50%. Every ten minutes the eggs are removed and weighed. Create...
March 21, 2009 by saleem

how do i calculate the molar solubility of AgBr in .10M NaBr?
April 17, 2008 by arielle

If the molar solubility of lead iodide is 2.4 x 10^-3M. Calculate the Ksp.
August 15, 2010 by Anonymous

The solubility of zinc oxalate is 7.9 x 10 ^-3 M at 18 degrees C. Calculate its Ksp.
November 29, 2010 by Pink

Calculate the solubility (in g/L) of calcium fluoride in water at 25C if the Ksp for is 1.5 10-10 .
December 2, 2014 by Robert

Calculate the mass in grams of 2.74L of CO gas at 33 degrees celcius and 126.0 kPa I got 3.75 grams Is this right please Thanks
May 10, 2010 by Andy

A solution is made by mixing 30.0 mL of ethanol, C2H6O, and 70.0 mL of water. Assuming ideal behavior, what is the vapor pressure of the solution at 20 C? I got an answer of 15.45 torr and it marked me incorrect and said "Your answer is the the partial vapor pressure ...
February 18, 2012 by Lauren

A volume of 25.0 mL of 8.0 M acetic acid is diluted with sufficient water to prepare 1.00 liter of solution. What is the concentration of the diluted solution?
March 9, 2008 by Allie

Algebra 2
How much wat must be evaporated from a 65-gallon tank of 40% salt solution in order to obtain an 80% salt solution?
October 18, 2009 by Trisan

What is the concentration (M) of a NaCL solution prepared by dissolving 9,3g of Nacl in sufficient water give 350ml of solution?.Any idea???
November 14, 2009 by Denmark

November 17, 2009 by KIM

You have a stock solution of 15.0 M NH3 . How many milliliters of this solution should you dilute to make 1200ml of 0.280 M NH3 ?
December 3, 2009 by Melissa

Marianne poured salt crystals into water to form a solution.In the solution, which best decribes the salt.
December 3, 2009 by Christopher

A 60.0-g sample of NaOH is dissolved in water, and the solution is diluted to give a final volume of 1.50 L. The molarity of the final solution is ?
December 10, 2009 by Anonymous

A dilute sulfuric acid solution that is 3.39 m H2SO4 has a density of 1.18 g/mL. How many moles of H2SO4 are there in 375 mL of this solution? 3.39 is 3.39 Molality not molarity
February 23, 2010 by Nick

1)How many mL of H2O2 are in 969 mL in solution ? * Given: 5.0% of H2O2 by volume. 2)What is the mole fraction of the solute in a 1.35m solution of CaCl2?
April 3, 2010 by Jay

If solid copper sulfate is mixed with water, what is formed? A mixture, a solvent, a solution or both a mixture and a solution?
May 12, 2010 by sue

pharmacy math
the iv dose of mannitol is 1.5g/kg, administered as 15% solution. how many mls of the solution should be administered to a 150 pound patient.
July 12, 2010 by kim

What are the concentrations of all the solute species in a 1.2 M solution of acetic acid, HC2H3O2? (a) [H3O+], M; (b) [OH-], M; (c) [CH3COOH], M; (d) What is the pH of the solution? For CH3COOH, Ka = 1.8 x 10-5
August 20, 2010 by Lozz

If 17.0 g of sodium chloride are dissolved in water to make 0.5 L of solution, then what is the final concentration of the solution? Answer 0.6 mol L I don't get this. I know that 1 mol / 22.4 L
August 29, 2010 by Amy~

What volume for 1.5M KCl solution must be used to prepare 500. mL of a .550 M KCl solution? I need the set up
September 22, 2010 by Sarah

To what volume should you dilute 48mL of a 13M stock HNO3 solution to obtain a 0.122 HNO3 solution?
October 2, 2010 by Anonymous

how much water (in mL's) needs to be added to 330 mL's of a 3.33 molar solution of lithium bromide to make the solution 1.44 molar
October 13, 2010 by stan

The density of a 1.0 M solution of NaCl is 1.04 g/mol and its specific heat, c, is 3.60 J/C*g. How much heat is absorbed by 31.4 mL of this solution if the temperature rises from 18.6 C to 29.7 C?
October 19, 2010 by Sarah

show me how to answer a question like this A chemical solution contains 40% grain. How much grain is in 35.5ml of a solution
October 24, 2010 by Anonymous

when I tried to find solution of 1/(x-3) + 1/(x-9) = 1/(x-2) + 1/ (x-8) all terms of x are cancelled out why? Is there any rule to find solution of this?plz guide me.
December 2, 2010 by aliya

The pH of a solution is 6.0. Explain how the addition of the following substance would alter (or not alter) the pH of the solution. a. HCl b. NaOH c. H20
January 24, 2011 by steven

what is the molality of a 10.5% by mass glucose solution?. density of the solution is 1.03g/ml can someone please explain how to do this question. please and thank you
February 10, 2011 by sam

How many mL of a 10.0% by volume stock solution of HCl must be diluted with enough water to make 300.mL of a 1.5% by volume solution?
February 21, 2011 by Kelli

The intravenous dosage of mannitol is 1.5g/kg, administered as a 15% mv solution. How many ml of the solution should be administered to a person with a body mass of 85kg?
February 21, 2011 by Mike

a solution contains 100g. H2O, 10g. NaCl and 15g. of methanol. What is the weight percent of methanol; in the solution?
March 29, 2011 by victoria

If a 25.0 mL sample of 0.500 M HCl solution were diluted 125-fold, what would be the volume and concentration of the diluted solution?
April 4, 2011 by Chris

Find the particular solution of the differential equation from: dy/dx = 2/27(x-3)(x^2-6x+23) / (y) (y>0. For which y=2 when x =1, and then give this particular solution in explicit form. regards Claire
April 6, 2011 by Claire

A saline solution was prepared by dissolving 5.45 g sodium chloride to 96.77 g water. What is the concentration in weight percent for this saline solution?
May 18, 2011 by James

You have a stock solution of 15.8 M NH3 . How many milliliters of this solution should you dilute to make 1350 mL of 0.300 M NH3
September 13, 2011 by Jennie

A 5.00 % m/m glucose solution has d = 1.02 g/mL. What is the mass of glucose in 375 mL of the solution? Enter only the numeric value for your answer (no units).
September 20, 2011 by Anonymous

It takes 75 mL of 0.124 M KOH to neutralize 28.5 mL of H2SO4 solution. What is the concentration of the H2SO4 solution? Answer in moles/liter.
October 1, 2011 by matt

A solution is prepared by dissolving NH3(g) in water according to the following equation. NH3(g) + H2O(l)=NH4^+(aq)+ OH^-(aq) If the pH= 9.60 what is the [OH-] in the solution.
November 30, 2011 by Julia

a gas solution contains 5 moles H2 and 10 moles of oxygen. what is the mole fraction of hydrogen and oxygenin the solution formed?
December 13, 2011 by chrisabel

An HNO3 solution has a pH of 3.04. What volume of 0.015 M LiOH will be required to titrate 89.0 mL of the HNO3 solution to reach the equivalence point?
January 5, 2012 by Anonymous

Predict the products when a chemist mixes an aqueous sodium chloride solution with an aqueous calcium nitrate solution.
March 14, 2012 by Ashley

a solution has gluten concentration of 2000ug/mL at 150uL. if 2uLof that solution is taken out what is the quantity of gluten in ppm?
March 22, 2012 by ms

Chem 1
consider 400 mL of a0.266 M LiNO3 solution. To what volume must it be diluted to make a 0.075 M LiNO3 solution.
May 2, 2012 by jenni

chemistry laboratory
1. prepare a buffer solution by using acetic acid and sodium acetate.2. prepare M/40 NAOH solution.
May 31, 2012 by suchismita mandal

2S2O3 2- + I2 => S4o6 2- + 2I - If,in an experiment,0.05 mol S2O3 2- is consumed in 1.0L of solution each second,at what rates are S4O6 2- and I- produced in this solution?
June 6, 2012 by Yeneta

Algebra 1
Use the multiplication property of inequalities to solve the inequality. Graph the solution set -1/9t≥2 The solution set is?
August 10, 2012 by Tammie

What determines whether or not the majority of acid is in the protonated form in solution? How does this incorporate both the pH of the solution and the pka of the acid?
October 30, 2012 by Cristian

What is the molarity of a solution made by diluting exactely 10.00 mL of a 0.1235 M solution of KNO3 to exactely 250 mL in a graduated flask?
November 25, 2012 by Mira

solve the following exponential equation. 8^x=3 what is the exact answer? a. x= ? b. there is no solution what is the answer approximated to 3 decimal places? a. x= ? b. there is no solution
January 1, 2013 by Kyrstal

A solution contains 0.02755 g of a protein in 25.0 mL of solution. The osmotic pressure is 3.22 torr at 298 K. What is the molecular weight of the protein?
February 17, 2013 by m

A solution of hydrochloric acid (HCl) contains 22.5% hydrochloric by mass. What is the molality of this solution I'm not sure how to start this problem...
March 14, 2013 by Maddie

What type of reaction will occur when an aqueous solution of lithium chloride is mixed with an aqueous solution of ammonium sulfate?
March 14, 2013 by Brian

Na2SO4 solution is slowly added to a solution which contains .10 M Ba (2+) and .1 M Pb(2+). which of the following statements descrives the result of the addition of Na2SO4
April 1, 2013 by Joe

Alg 1
Find the exact solution for each equaton. Find the approximate solution to the nearest tenth. 3 sq rt 3/sq rt 1 + sq rt 1 = x/sq rt 3 Please solve and explain. Thanks
April 3, 2013 by Jane

Which is the more concentrated solution: a solution made with .70 moles of NaCl in a .35L water or a 35g of NaCl in .75L?
April 8, 2013 by Alexis

To what volume should you dilute 55mL mL of a 13M M stock HNO 3 solution to obtain a 0.140M M HNO 3 solution?
August 4, 2013 by Anonymous

To what volume should you dilute 55mL mL of a 13M stock HNO 3 solution to obtain a 0.140M M HNO 3 solution?
August 4, 2013 by Anonymous

If a 30.00mL aliquot of a 0.15 M NH4Cl solution is added to 20.00mL of a 0.18 M NH4NO3 solution, what is the concentration of nitrate ion in the mixture?
August 12, 2013 by RC

A 0.110-L sample of an unknown HNO3 solution required 52.1 mL of 0.150 M Ba(OH)2 for complete neutralization. What was the concentration of the HNO3 solution?
November 9, 2013 by Lori

help with math!!!!
Solve each system using substitution. Tell whether the system has one solution, infinitely many solutions, or no solution. 13. -x + y = -13 3x - 1 = 19 15. 1/3y= 7/3 x + 5/3 x - 3y = 5 17. 3x + y = -13 -2x + 5y = -54
March 12, 2014 by Hannah

Determine the volume of base ml needed to prepare the following 500 ml of 0.18 % NaOH SOLUTION USING A 10.0 % NaOH SOLUTION
March 21, 2014 by MH

A 5.0−L sample of a 5.4M NaCl solution is diluted to 70L . What is the molarity of the diluted solution? How would you set this up and answer it?
May 1, 2014 by AF

A solution made up of 20ml of mythl alcohol and 50ml of water. What is the volume percent of ethyl alcohol in solution.
July 7, 2014 by Araceli

5.0 moles of solid sodium chloride (NaCl) are used to prepare a 5.0 M NaCl solution. What is the volume of the solution?
October 13, 2014 by Morgan

What is the pH of a solution prepared by mixing 25.00 mL of 0.10 M CH3CO2H with 25.00 mL of 0.010 M CH3CO2Na? Assume the volumes of the solution are additive and that Ka = 1.8 x 10-5 for CH3CO2H. 4. How is this solved?
November 4, 2014 by KJ

Pages: <<Prev | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | Next>>