Tuesday
July 22, 2014

Search: Calculate the molarity of a solution made by dissolving .0715 mol Na2SO4 in enough water to form 650mL of solution

Number of results: 39,998

chemistry
what is the molarity of an unknown HCI concentration if it requires 75ml of a 0.2 M NaOH solution?
December 1, 2010 by jo

CHEM
a solution containing 30 g of nh3 in 70 g of water has a density of 0.882 g/ml. what is the molarity and molality
December 12, 2010 by MAX

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
What is the molarity of a 37.50 mL sample of HNO3 solution that will completely react with a 23.70 of .0100 M NaOH?
June 7, 2011 by Chirag

Chemistry HELP
If 150.0 mL of 1.00 M C6H12O6 are diluted to 750.0 mL, what is the molarity of the final solution? ____ M?
October 3, 2011 by MBH

chemistry
what is the molarity of a h2so4 solution if 18.5ml of naoh are needed to neutralize 25.0 mL of the sample?
October 16, 2012 by sandra

chemistry
If 25.0mL of 0.56 M H2SO4 is diluted to a volume of 125 mL, what is the molarity of the resulting solution?
October 28, 2012 by katie

chemistry
A 150mL sample of 0.45 M HNO3 is diluted to 450 mL. What is the molarity of the resulting solution?
October 28, 2012 by katie

Chemistry
Please help me, determine the molarity of a solution containing 2.5 moles CuSO4 in 4.2 L of water
October 30, 2012 by phyllis

chemistry
What is the molarity of the solution containing 6.245g of oxalic acid, H2C2O4 in 750mL
February 7, 2013 by rv

Chemistry
What is the molarity of nitrate ions in a solution containing 2.20 mg of Mg(NO3)2 dissolved in 7.35 L of water?
March 14, 2013 by Maddie

chemistry
PLS HELP ME AND THANK YOU:) What is the molarity if 2.18 grams of CO(NO3)2.6H2O dissolved in 50.00ml of solution?
April 6, 2014 by may

Chemistry
I am hoping to receive help getting started with this problem, possibly some steps in the correct direction. Here is the question: 5.0mLs of a 6.0M solution of HCl was transferred to a 1000ml volumetric flask and diluted to volume w/ water. 50mLs of this solution was then ...
June 9, 2009 by Juggernaut

chemisty
Posted by STACY on Monday, December 13, 2010 at 7:56pm. Consider an aqueous solution prepared from 250.0 mL of water and 1.27 g of potassium bromide. Express the amount of potassium bromide in this solution in terms of (a) mass percent (b) mole fraction (c) molarity assume the...
December 14, 2010 by STACY

chemistry
In standardizing a potassium hydroxide solution, a student finds that 32.60mL of the base solution is needed to titrate 0.5045 grams of KHP to a phenolphthalein end point. In another titration, 26.63mL of this same base solution is needed to titrate 0.2003grams of an unknown ...
March 14, 2014 by Anonymous

Chemistry
the following acid—base neutralization reaction HNO3 (aq)+ KOH (aq) --KNO3(aq) + H2O (I) What is the molarity (M) of an HNO3 solution if 50.0ml is needed to react with 25.0ml of 0.150M KOH solution?
October 20, 2012 by Tasha

Chemistry
4.00 grams of NaOH have been added to 2.0 liters of water. The molarity of this solution is ____M. the concentration of this solution is ______ grams of NaOH per liter of water
August 6, 2010 by Maria

chemistry
calculate the number of Mg2+ ions in each mL of 0.162M(molarity) magnesium bromide
October 26, 2008 by ben

chemistry
Calculate the new molarity when 150 mL of water is added to 125 mL of 8.55 M HBr.
April 2, 2013 by Alex

chemistry
If you mix 50 grams of NaHCO3 in 2.0 liters of water, calculate molarity & molality
June 4, 2014 by Noah

Chem
(a) The molar solubility of Ag2CrO4(s) at 35°C is 1.3 10-4 mol/L. Calculate Ksp. (b) If 0.0490 g of AgIO3 dissolves per liter of solution, calculate the solubility-product constant. (c) Using the appropriate Ksp value from Appendix D, calculate the solubility of Cu(OH)2 in ...
April 27, 2011 by Rebekah

Chemistry
This is a question I am presently doing right now which I found in my homework. I am quite sure that in (a) I have to use the Hasselbach equation though I am not sure how to work it out. If anyone knows any of the answers, and how you got to them, please feel free to share. ...
September 29, 2012 by Matthias

Chemistry
This is a question I am presently doing right now which I found in my homework. I am quite sure that in (a) I have to use the Hasselbach equation though I am not sure how to work it out. If anyone knows any of the answers, and how you got to them, please feel free to share. ...
September 29, 2012 by Matthias

science
you need to make a 3.5 Molar solution of Ca(OH)2, however, you only want to make 50ml of this Ca(OH)2 solution. How many grams of Ca(OH)2 will you need to weigh out and add to 50ml of water? Mass=VolumeinLiters*Molarity*Molmass
December 12, 2006 by brittany

Physical Chemistry
When 1.00 g of gaseous I2 is heated to 1000. K in a 1.00 L sealed container, the resulting equilibrium mixture contains 0.830 g of I2. Calculate Kc for the dissociation equilibrium below. I2 <--> 2 I What I did was converted the initial I2 into moles then molarity since ...
February 19, 2010 by Trixie

Chemistry Question!!
When 1.00 g of gaseous I2 is heated to 1000. K in a 1.00 L sealed container, the resulting equilibrium mixture contains 0.830 g of I2. Calculate Kc for the dissociation equilibrium below. I2 <--> 2 I What I did was converted the initial I2 into moles then molarity since...
February 19, 2010 by Trixie

Chemistry
A 35ml 0.1M AgCl solution is mixed with 15ml 0.25M MgCl2 solution. Calculate the moles and molarities of the Ag+, NO3-,Mg2+, and Cl- ions in the solution mixture.
September 1, 2008 by Jimmy

AP Chem
Calculate the correct volumes of the 0.1M acetic acid solution and the 0.1M sodium acetate solution needed to make 50mL of a buffer solution with a pH vaule of 5.00. (Ka = 1.8x10^-5)
March 11, 2012 by Keighley

Chemistry
A buffer was prepared by dissolving 22.61g of NaCLO2 into 0.100L of 4.00M aqueous HCLO2. Calculate the pH of the original Chlorous acid/chlorite ion buffer. Ka= 1.1 x 10^-2.
December 3, 2012 by May

chemistry(Please Check)
You dissolve 6.55 g of potassium nitrate in enough water to make a 250. mL solution. What is the molarity of this solution ?Answer: 0.0262 Please Check my answer
April 23, 2012 by Wurola

chemistry
A 0.4515 g sample of pure CaCO3 was transferred to a 500 mL volumetric flask and dissolved using 6M HCl then diluted to volume. A 50.00 mL aliquot was transferred to a 250mL Erlenmeyer flask and the pH adjusted. Calmagite was used as an indicator the solution was titrated ...
February 15, 2012 by darren

Chemistry
Compound Z has a MW of 100. Your lab partner weighed 25 grams of compound Z and dissolved it in water to a final volume of 1 liter. a) What is the concentration of the solution expressed as a percentage by weight (w/v)? b) What is the concentration of the solution expressed as...
August 29, 2011 by Ty

math steve for your help
25g of a sample of ferrous sulphate was dissolved in water containing dilute h2s04 and the volume made up to one litre. 25ml of this solution required 20ml of N/10 kmn04 solution for complete oxidation. Calculate the percentage of fes047h20 in the sample The answer 88.96% My ...
December 29, 2013 by Fai

chemistry
A solution of sodium bicarbonate is prepared by adding 45.00g of sodium bicarbonate to a 1.00-L volumetric flask and adding distilled water until it reaches the 1.00-L mark. Calculate the concentration of sodium in units of: a) milligrams per liter b) molarity c) normality d) ...
January 15, 2011 by Maria

Chem 2
A 100-mL sample of water is titrated with EDTA solutions in problem 2. The same amount of Mg2+ is added as previously, and the volume of EDTA required is 31.84mL. What volume of EDTA is used in titrating the Ca2+ in hard water? Previous answers are: Moles of Ca2+ : 0.005113 ...
February 11, 2014 by Carlye

Chemistry
Magnesium nitrate reacts with lithium sulfate in a double replacement reaction. You have 3.45 g of lithium sulfate and 275 mL of magnesium nitrate. Calculate the molarity of the Magnesium nitrate solution in the reaction.
February 21, 2012 by Bella

pcc
A volume of 40.0mL of aqueous potassium hydroxide (KOH) was titrated against a standard solution of sulfuric acid (H2SO4). What was the molarity of the KOH solution if 21.7mL of 1.50 M H2SO4 was needed? The equation is 2KOH(aq)+H2SO4(aq)→K2SO4(aq)+2H2O(l)
July 15, 2013 by jose

Chemistry
A volume of 80.0mL of aqueous potassium hydroxide (KOH) was titrated against a standard solution of sulfuric acid (H2SO4). What was the molarity of the KOH solution if 21.7mL of 1.50 M H2SO4 was needed? The equation is 2KOH(aq)+H2SO4(aq)→K2SO4(aq)+2H2O(l)
February 24, 2014 by carley

chemistry
6.0g of impure and hydrous Na2SO4 were made up to 1dm^3 of solution neutralize 22.20cm^3 of 0.1mol/dm^3 of HCL.calculate: a)concentration of Na2CO3 in mol/dm^3. b)concentration of Na2CO3 in gram/dm^3. c)percentage purity in carbon.
January 28, 2012 by faith

chemistry
6.0g of impure and hydrous Na2SO4 were made up to 1dm^3 of solution neutralize 22.20cm^3 of 0.1mol/dm^3 of HCL.calculate: a)concentration of Na2CO3 in mol/dm^3. b)concentration of Na2CO3 in gram/dm^3. c)percentage purity in carbon.
January 28, 2012 by faith

chemistry heelp
What volume of a solution that is 15.7 % (w/w) lolinic acid (density = 1.64 g/mL) contains 4.25 g of lolinic acid15. What is the molarity of a 20.2 % (w/w) solution of rossonic acid (423.6 g mol-1) that has a density of 1.78 g mL-1?
January 31, 2014 by nene

Chem 1
The forensic technician at a crime scene has just prepared a luminol stock solution by adding 15.0g of luminol into a total volume of 75.0 \rm mL of \rm H_2O. What is the molarity of the stock solution of luminol? 1.13M Before investigating the scene, the technician must ...
March 13, 2013 by Chris

chemistry
A solution is prepared by dissolving 17.1grams of sucrose, c12h22o11, in 275grams of h20. a)what is the molar mass of sucrose? I know the formula to use, but can someone show me how do to it, by actually plugging in the numbers.
April 6, 2008 by Miley

chemistry
A graduated cylinder was used to transfer 201 mL of a 0.478 M solution of KCl to a beaker which was subsequently diluted to a final volume of 1.092 L. What is the final molarity of the KCl in the beaker after the solution is thoroughly mixed?
February 8, 2012 by Alex

analytical chemistry
the problem is find the pH of a solution prepared by dissolving all of the following in sufficient water to yield 1.00 L of solution :0.180 mole of chloroacetic acid (CICH2CO2H),0.020 mole ofCICH2CO2Na,0.080 mole HNO3, and 0.080 mole Ca(OH)2. Assume that the Ca(OH)2 and HNO3 ...
March 31, 2013 by lolo

Chemistry
True or False? A solution made from NaCl and HCl will act as a buffer solution.
June 2, 2010 by Heather

chemistry
what final volume in liters of a 2.5 m solution of sodium nitrate can be made using 25.0g of solution
March 15, 2011 by andrew b

Biochem
What is the pH and pOH a solution that was made by adding 400 mL of water to 350 mL of 5.0 x 10^-3 M NaOH solution?
September 2, 2011 by Max

Chemistry
How many grams of water are produced from the reaction of 1L of 2 molarity hydrochloric acid with 1L of 2 Molarity barium hydroxide?
March 23, 2011 by Bruce

Chemistry
How do I find the molarity of Fe(SCN)2+? I know the molarity of SCN=0.1 and the molarity of Fe is 0.0001. The volume of SCN is 5 mL and the volume of the Fe is also 5mL. I also think that I use M1V1=M2V2.
February 5, 2011 by Brittany

molarity
what is molarity when 12L of water contains 3.4mol of CO gas
December 10, 2008 by cha'nae

Chemistry
Is this answer correct? Calculate the molar concentration of sodium hydroxide solution if 36.00mL of this solution were required to neutralize 25.00 mL of a 0.2000 M solution of hydrochloric acid. .0288M??????
May 25, 2011 by jordan

Chemistry Check Please! ?Fixed
A solution is prepared by dissolving 3.44 g of sucrose, C12H22O11, in 118 g of water. a) What is the molality of the resulting solution? b) What is the mole fraction of water in this solution? B) moles of h2o=118g/18(g/mol)=6.548 mol moles of c12h22O11= 3.44g/342.3(g/mol)=0....
January 17, 2014 by Kate

molarity
what mass of sodium hydroxide, NaOH, must be dissolved to make 460 ml of a 1.10 M solution
February 27, 2008 by erica

Chemistry II
What is the molarity of a solution in which 13.7 g of calcium chloride is dissolved in water to a final volume of 750.0 mL?
September 1, 2009 by Michelle

chemistry
What is the original molarity of a solution of formic acid (HCOOH) whose pH is 3.74 at equilibrium? ka =1.7x10^-4
February 19, 2010 by rodrigue

Gen. Chemistry
What is the original molarity of a solution of weak acid whose Ka= 3.5 x 10^ -5 and pH is 5.20... I'm lost, please help!
December 5, 2010 by Savannah S.

chemistry
what is the molarity of 40g in 0.5L of solution. Molecular weight of substance is 100.09g/mole.
March 10, 2011 by carla

Chemistry
23.7 grams of glucose(C6H12O6) are added to water to give a 246 ml of solution. what is the Molarity
May 31, 2011 by Jackie

Chemistry
What is the molarity of 782 mL of a solution that contains 0.056 mol of solute? Answer in units of M
September 15, 2011 by Anonymous

Chemistry
What is the molarity of a solution of sucrose that has a density of 1.24g/ml and a molecular weight of 342.3g/mol
September 18, 2011 by confuzzled

chemistry
the molarity of a solution composed of 25.4g KHCO3 diluted with water to a total volume of 200 mL
October 18, 2011 by Colin

chemistry
a 4g of sugar C12H22O11 is dissolved in 350ml fill with hot water,what is he molarity of solution?
March 2, 2012 by Anonymous

chemistry
If 33.4 mL of the base are required to neutralize 11.1 mL of hydrobromic acid, what is the molarity of the potassium hydroxide solution?
May 2, 2012 by Anonymous

Chemistry
If 20ml of a 2.0M solution of HCl is diluted to 500mls, what is its new molarity? How do I work this out
June 13, 2012 by Shane

chemistry
If 36.3 ml of 0.152M NaOH is required to neutralize 25.00 ml of an HC2H3O2 solution ,what is the molarity of the acetic acid?
September 11, 2012 by HJ

Chemistry
What is the molarity of a solution prepared by diluting 25.0 mL of 0.412 M magnesium nitrate to a volume of 1.50 L please help!
November 30, 2012 by Ashley

Chemistry
if 20.00 grams of NaOH are diluted in enough water to make 1.00 liter, what is the molarity of the solution?
December 5, 2012 by Anonymous

Chem
how do you find the molarity of NaOH if 23.64ml of its solution is needed to neutralize .5632g of KHC8H4O4?
April 8, 2013 by Mary

Chemistry II
A stock solution containing manganese ions was prepared by dissolving 1.542 g pure manganese metal in nitric acid and diluting to a final volume of 1.000L. Calculate the concentration of the stock solution. mols Mn = g/atomic mass Mn. M = mols/L 1.542 g / 54.9 amu Mn = .028 ...
April 16, 2007 by Jayd

Chemistry
If 33.6 grams of KCl are dissolved in 192 grams of water, what is the concentration of the solution in percent by mass? AND if 2.1 moles of CaCl2 are dissolved in enough water to make a .92 liter solution what is the resulting molarity? Please help and explain or anything?!
March 27, 2012 by Dr. David

Chemistry
How many moles of KMn)4 are required to reach with the moles of Na2C2O4 in the last problem? and also, if the KmnO4 of the last problem is in 30.30mL of solution what is the molarity (M) of the KmnO4 solution?
March 3, 2009 by Kim

Chemistry
What is the pH and pOH of a solution that was made by adding 400mL of water to 350mL of 5.0x10^-3 M NaOH solution?
May 12, 2011 by Jackie

Please help with Chemistry?????
A standard solution with a FeSCN2+ concentration of 1.55x10^-4M has a percent transmittance (%T) of 18.8%. Another solution of unknown FeSCN2+ concentration has a percent transmittance of 44.8%. A) Calculate the absorbance (A) of each solution. B) Using the absorbances ...
February 26, 2014 by Dan

Chemistry
Could someone help me with these problems; A)If 5.97mL of a solution of NaCl contains 2.54g of sodium ion, what is the molarity of the sodium chloride solution? -I know M=#moles solute/L but when I do this I get 7.28*10^-3 which is wrong, the answer should be 1.85*10^-2 B) ...
January 28, 2011 by Adam

chem. molarity
find the molarity of bezene given the denisty of .8989 g/l and the boiling temp is 80.2 C and Kb= 2.53C kg/mol
January 10, 2011 by tori

Chemistry
How many mL of 1.211 Molarity sulfuric acid is required to completely neutralize 10.0 mL of 3.210 Molarity calcium hydroxide?
March 23, 2011 by Bruce

Chemistry
The reaction of a metal ion, M^2+, with EDTA is given in the following equation: M^2+(aq) + Y^4-(aq) <==> MY^2-(aq) The EDTA was standardized with a 0.04 M Zn^2+ solution. 25.05 mL of EDTA solution was used to titrate the Zn^2+ solution. From this standardization, ...
July 20, 2010 by Miguel

chemistry
(a) The measured pH of a 0.200 M HBr solution at 25°C is 0.806. Calculate the activity coefficient for H . (b) The measured pH of a 0.200 M HNO3 solution at the same temperature is 0.822. Calculate the activity coefficient for H in this solution.
February 20, 2014 by kdawg

chemistry
CH3NH2(aq)+H2O(l)=>CH3NH3+(aq)+OH-(aq) Kb=4.4 x 10^-4 Methylamine, CH3NH2, is a weak base that reacts with water according to the equation above. A student obtains a 50.0 mL sample of a methylamine solution and determines the pH of the solution to be 11.77. (a) Write the ...
April 4, 2013 by ashdawg

AP Chemistry
CH3NH2(aq)+H2O(l)=>CH3NH3+(aq)+OH-(aq) Kb=4.4 x 10^-4 Methylamine, CH3NH2, is a weak base that reacts with water according to the equation above. A student obtains a 50.0 mL sample of a methylamine solution and determines the pH of the solution to be 11.77. (a) Write the ...
May 2, 2013 by Christina

chemistry 32
Calculate the concentration, in molarity, of a solutiion prepared by adding 9 mL of water to 1mL of 0.1 M of HCl
March 10, 2011 by Adrian

Chemistry
Glycine amide hydrochloride (BH+) FM 110.54, pKa 8.20 Glycine amide (B) FM 74.08 b.) How many grams of glycine amide should be added to 1g of glycine amide hydrochloride to give 100ml of solution with pH 8? I tried using the henderson-hasselbalch equation to give: 8 = 8.2 + ...
October 30, 2011 by Ken

Chemistry
A solution contains 15 g non-volatile non-electrolyte solute C6H14O6 dissolved in 500 g of water at 40 c. Calculate (A)Vapor pressure of the solution. (B)Boiling point of the solution. (C)Freezing point of the solution.
September 1, 2012 by Yeneta

chemistry
Two solutions are prepared. In Solution A, 5.0 g of a substance of molecular weight 50 is dissolved in 100 mL of pure water. In Solution B, 5.0 g of a substance with molecular weight of 75 is dissolved in 100 mL of pure water. The solute is non volatile and non ionic. Which ...
February 25, 2009 by Anonymous

chemistry
A 25.00 mL solution of potassium nitrate (KNO3) was diluted to 125.0 mL, and 25.00 mL of this solution were then diluted to 1.000 103 mL. The concentration of the final solution is 0.00421 M. Calculate the concentration of the original solution.
October 1, 2012 by Aiden

chemistry
A 25.00 mL solution of potassium nitrate (KNO3) was diluted to 125.0 mL, and 25.00 mL of this solution were then diluted to 1.000 103 mL. The concentration of the final solution is 0.00421 M. Calculate the concentration of the original solution.
October 1, 2012 by Tim

Chemistry
Please help! I have spent hours trying to work these three problems. How many grams of solid barium sulfate form when 27.1 mL of 0.160 M barium chloride reacts with 53.4 mL of 0.065 M sodium sulfate? Aqueous sodium chloride forms also. I have converted the 27.1mL to .0271L, ...
September 21, 2013 by Anonymous

Chemistry
An excess of zinc metal is added to 50.0 mL of a 0.100 M AgNO3 solution in a constant-pressure calorimeter. Assuming that the density of the solution is the same as for water, calculate the mass of the solution.
June 30, 2010 by Haley

chemistry
A solution of 25mL of 0.5M c2h5nh2 is titrated with hydrochloric acid solution. During titration 5mL of .5M hcl is added dropwise. As volumes are additive. Calculate the pH of the resulting solution
April 7, 2014 by Jesus

Chemistry
.12M Lactic Acid (HC3H5O3, Ka=1.4x10^-4) is mixed with .10M NaC3H5O3 to form 1.00L solution. A. Calculate the pH of the solution after the addition of 50.0mL of 1.00M NaOH. B. Calculate the pH of the solution after the addition of 120.0mL of 1.00M NaOH.
March 28, 2010 by Emma

chemistry
An aqueous solution of Na2SO4 has a molal concentration of 0.293 mol kg-1. Its density is 1.0350 g mL-1. Calculate the molar concentration of Na2SO4. ----- mol L-1 Calculate the mass percent of Na2SO4 in the solution. ------- % What is the mole fraction of Na2SO4 in the ...
May 2, 2010 by write2khin

Chemistry
A solution is made by diluting 18.2 g glucose (C6H12O6) in 0.150 kg water. What is the mass percentage of solute in this solution?
August 3, 2010 by Jake

Chemistry
A solution is made by diluting 18.2 g glucose (C6H12O6) in 0.150 kg water. What is the mass percentage of solute in this solution?
August 9, 2013 by Anonymous

Chemistry
what is the pH and pOH of a solution made by adding water to 15 grams of HCl until the volume of the solution is 2500mL?
April 5, 2014 by Lena

Chemistry
what is the pH and pOH of a solution made by adding water to 15 grams of HCl until the volume of the solution is 2500mL?
April 5, 2014 by Anonymous

Chemistry
25.00 mL of a solution of oxalic acid are titrated with 0.2586 m NaOH (aq). The stoichiometric eend point is reached when 43.42 mL of the solution of base is added. What is the molarity of the oxalic acid solution? Oxalic acid reacts with sodium hydroxide as shown: H2C2O4(aq...
December 1, 2012 by ANONYMOUS

chemistry
What would be the pH of a solution of hy- poiodous acid (HOI) prepared by dissolving 144 grams of the acid in 200 mL of pure water (H2O)? The Ka of hypoiodous acid is 2¡¿10−11 1. 7 2. 10 3. 13 4. 5 5. 1
February 25, 2010 by hello

chemistry
A buffer is made by dissolving HC2H3O2 and NaC2H3O2 in water. Write an equation that shows how this buffer neutralizes added acid. Express your answer as a chemical equation. Identify all of the phases in the answer.
December 3, 2012 by amanda

Pages: <<Prev | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | Next>>

Search
Members