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August 27, 2014

Search: How many grams of CaCl2 would be dissolved in 1.9 L of a 0.19 M solution of CaCl2?

Number of results: 62,837

Chemistry
How would you prepare 2.5 L of a 0.05 M solution of iron (III) chloride using iron (III) chloride hexahydrate Since 1 mol iron(III)chloride hexahydrate contains 1 mol iron(III) chloride, use the molar mass of the hexahydrate. M x L = grams/molar mass Solve for grams. In ...
May 2, 2007 by MEl

Chemistry
9. A solution has 48 grams of LiOH dissovled In 100 L of water. What is its [OH-]? 10. What is the pH of the solution in question 9?
February 26, 2014 by Emma

grade 12 chemistry
Q. a 50g sample of Al(NO3)3 is dissolved in water to prepare 1500ml of solution. What is the concentration, in mol/L, of NO3 ions in the solution? -The answer is 0.47 mol/L but I don't know how to solve it.
February 4, 2009 by wiz

chemistry
Calculate the boiling point elevation of a solution containing 22.8 g of glucose (C6H12O6) dissolved in 672.0 g of water. Calculate the freezing point depression for the same solution.
February 28, 2010 by mandy

chemistry
Calculate the boiling point elevation of a solution containing 22.8 g of glucose (C6H12O6) dissolved in 672.0 g of water. Calculate the freezing point depression for the same solution.
February 28, 2010 by mandy

chem
How would i found out the freezing point of a solution which has 0.05mol of acetic acid dissolved into 125g of benzene? Benzene melts at 5.5C and has a constant of 5.1C/m. The acid forms a dimer (what is this and how does it affect the calculations?) A dimer is a molecule from...
August 7, 2007 by Chris

Chemistry revision
all these questions I got wrong on my homework today ...I'm trying to find out why and what the correct answers were .. please help How many grams of solute are required to make a 504 mL solution of copper (I) nitrate with a concentration of 1.3317 M? before I had help and was...
April 29, 2013 by Tif

chemistry
You dissolved 450.0 g of sugar (C12H22O11) in 150 mL of water. The density of water is 1.00 g/mL a. calculate the molarity of the solution b. calculate the molality of the solution
November 7, 2013 by June

Chemistry help!!
A chemist wants to be a supercook and wants to create 8%(m/v) acetic acud solution to be "extra strength" vinegar. if pure acetic acid Is a liquid density of 1.049 g/ml. how many ml of acetic acid should be dissolved to male 500 ml of 8% acetic acid? It says to first calculate...
April 22, 2012 by Kate

Chemistry
how many grams of a solution are present if the solution contains 12.5g of KCL and is 43% by mass?
April 13, 2011 by Ryan hawkins

chemistry
the molarity of a solution containing 40 grams of NaOH in 100 ml of solution is
July 13, 2011 by willie

Science
A solution has a density of 3/mL. How many grams are needed to obtain 10.0mL of solution?
September 24, 2012 by Sammi

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

analytical chemisty
Consider the standardization of a solution of K2Cr2O7 with iron metal according to the following: Reaction: Fe + Cr2O7-2 → Fe +3 + Cr+3a. How many grams of K2Cr2O7 are required to prepare 500 ml of a 0.13 N solution? What is the exact normality of the solution prepared ...
February 2, 2013 by Anonymous

Chemistry
the density of a certain aqueous solution is 1.17g/ml, and the solution is 3.57% by mass NaOH. how many ml of this solution would you need to use in order to prepare 100.0 ml of .150 M NaOH solution? I'm not sure where to start and what the process to go through would be... ...
September 7, 2008 by Lyndsey

Chemistry
What is the molarity of a solution containing 20 grams of NaOH in 500 milliliters of solution? a-0.04M b-0.5M c-1M d-2M
March 5, 2008 by John

Chemistry
What is the molarity of a solution containing 20 grams of NaOH in 500 milliliters of solution? a-0.04M b-0.5M c-1M d-2M
March 5, 2008 by Jena

Chemistry
What is the mass, in grams, of NaCl formed from the reaction of 2.75 mL of a 6.00 M Na2SO4 solution and 8.30 mL of 2.5 M solution of HCl?
November 23, 2011 by Jane

organic chemistry
If 5 grams of diphenylacetylene is dissolved in 40 ml cyclohexene, calculate the pressure change needed to completely hydrogenate this substance at room temperature and 50 degrees celcius.
April 26, 2012 by coleman

Statistics
The USDA size standards for eggs are based on weight and are as follows: SMALL: greater than 43 grams, less than 50 grams MEDIUM: greater than 50 grams, less than 57 grams LARGE: greater than 57 grams, less than 64 grams EXTRA LARGE: greater than 64 grams, less than 71 grams ...
March 4, 2010 by Ion

Chemistry
If 8.5g of pure ammonium phosphate , (NH4)3PO4(s), is dissolved in distilled water to make 400mL of solution, what are the concentrations (in moles per litre) of ions in the solution. How would I solve this type of stoichiometric problem. I know the steps Step 1: make the ...
March 5, 2013 by Kristien

Chemistry
If 8.5g of pure ammonium phosphate , (NH4)3PO4(s), is dissolved in distilled water to make 400mL of solution, what are the concentrations (in moles per litre) of ions in the solution. How would I solve this type of stoichiometric problem. I know the steps Step 1: make the ...
March 5, 2013 by Kristien

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

chemistry
Suppose you tried to combine 42 grams of magnesium with 42 grams of oxygen. Which of the two substances would have some left after the reaction and how much magnesium oxide would be formed?
March 3, 2010 by tony

Chemistry
How many grams of NaCl should be added to 1 L of water to make an isotonic solution? (molecular weight of NaCl= 58.5) Can someone please explain to me why the answer is 9 grams.
January 30, 2012 by Jon

chemistry
how many grams of copper is displaced from copper sulphate solution by adding 27 grams of aluminium
June 27, 2013 by amish

Chemistry
How many grams of NaCl are present in a 300 grams salt solution containing 9% NaCl ?
November 6, 2013 by Angelica

Chemistry
.050 mole of weak acid (HA) is dissolved in enough water to make 1.0 L of solution. The pH of this solution is 3.50. What is the value of Ka for this weak acid?
April 6, 2012 by Hannah

chemistry
How many grams of KBr dissolved in 100 g of water is needed to raise the boiling point of water to 104.0 C
January 28, 2011 by Anonymous

General Chemistry
how many grams of a protein weighing 4500 grams/ mol must be present in 100 ml of water solution to a given osmotic pressure of 18 mm hg at 25 degrees celcius...( use formula of pie = Mrt
December 11, 2010 by Sarah

chemistry
How many grams of NaCl should be added to 250 grams of water to make a 0.40 m solution? I got 19 grams. this is how I got it. first I found the mass of water = 18g then I converted that to mols 18/250 = .0072. I subtracted 0.072 - 0.40 = 0.328 I found the mass of NaCl = 58 0....
March 24, 2007 by davis

Chemistry!
Calculate the solubility of Ag2CrO4 in grams/100mL of water? (Ksp = 1.12x10^-12 ) I know how to calcuate the molar solubility, and I know how to convert it into grams/L...but I'm stuck on how to make it grams/100mL Any Help would be awesome! =D thx!
August 9, 2008 by Sue Ellen

chemistry
A beaker contains 50.0 mL pf 0.953 M solution of a diprotic acid. How many grams of Mg(OH)2 are required to neutralize this solution?
June 12, 2010 by Monica

Chemistry
A beaker contains 50.0 mL of 0.952 M solution of a diprotic acid. How many grams of Mg(OH)2 are required to neutralize this solution?
June 12, 2010 by Monica

chemistry
85.0 grams of potassium bromide are to be used to produce a 0.300M solution. What will be the total volume of this solution?
June 26, 2010 by jimbo

Chemistry
Normal saline solution is 0.91%w/v Calculate thge concentration of this solution in grams per litre????
December 13, 2010 by Korina

chemistry
how many grams of Ag2CO3 will precipitate when excess Na2CO3 solution is added to 64.0 mL of 0.554 M AgNO3 solution?
March 23, 2013 by mya

chemistry
How many grams of I2 are present in a solution if 33.75mL of 0.140M Na2S2O3 solution is needed to titrate the I2solution?
November 18, 2013 by Ellen

Chemistry
What is the molarity of a solution of Mg(OH)2 if the solution contains 1.35 g in exactly 100 mL of solution??? A 15.0 mL solution of H2SO3 is neutralized by 12.0 mL of a standradized 1.00M NaOH solution. What is the concentration of the H2SO3 solution?????? What volume of a 1....
December 12, 2012 by Tasha

Chemistry
a solution has a density of 1.50 g/mL. how many grams are needed to obtain 10.0 mL of solution?
November 3, 2010 by JessiKa

science
A solution has a density of 1.50 g/mL. How many grams are needed to obtain 10.0 mL of solution?
May 29, 2012 by Alli

ap chemistry
A sample of 1.67 grams of Z is dissolved into 500 grams of water which is in a Styrofoam coffee cup. The temperature is monitored and is found to rise from 25.594◦C to 26.041◦C. What is Hsolution for substance Z? Assume no heat is lost/gained by the cup itself. ...
October 22, 2013 by gabriella

goechemistry-science
i ppted out iron(111) form a solution and weighed the ppt. then dissolved the ppt in a solution and run in an aas and get the concentration. how can i get the percentage concentration of fe3+ given that it is from fe(oh)3
March 13, 2012 by didymus mupambo

chemistry
8.58g of coastic soada was dissolved to produce a solution of 500cm3 .to neutralize 50cm3 of this solution 15cm3 of 0.4M HCl was consumed .(coastic soada = Na2CO3.XH2O ) find the value of X?
December 18, 2012 by fathima

chemistry
A 2.00 g sample of a particular compound was dissolved in 15.0 g of carbon tetrachloride. The boiling point of this solution was determined to be 77.85C. For pure CCl4, TB = 76.50C and KB = 5.03Ckg/mol Calculate the boiling point elevation, ΔTB, for this solution.
May 4, 2014 by sarah

college
what is the mass of solute dissolved in 50.0g of a 12.5% saline solution?
December 16, 2010 by debbie

Chemistry
What is the mass of ethylene gycol dissolved in 5.00 kg of a 40.0% solution?
May 4, 2013 by Nicole

Chemistry
If 2.5 g of NaOH is dissolved in 253 mL of water, what is the pH of the solution?
April 20, 2014 by Lilly

Chemistry
How many grams of NaCl would be required to make a 24% NaCl solution if 250 ml of water were used
May 1, 2011 by Michelle

Chemistry 3A
How many grams of KCl would you need to weigh out to prepare 0.25L of a 2.00 M KCl solution?
December 10, 2012 by Gurjot

Chemistry
Calculate the mass in grams of glycerol you would need to make 200 g of a 20% (w/w) glycerol solution.
April 7, 2013 by Anonymous

chemistry
How many grams of phosphoric acid can be made from 200 g of dichromate and 150 grams of hypophosphorous acid? (Performed in an acidic solution, Chromium III is one of the products)
October 10, 2012 by Rae

chem
The solubility of KNO3 is 155 g per 100 g of water at 75 degrees celcius and 38.0 g at 25 degrees celcius. What mass (in grams) of KNO3 will crystallize out of solution if exactly 100 g of its saturated solution at 75 degrees celcius is cooled to 25 degrees celcius. i found ...
October 15, 2008 by Mischa

chem
An aspirin tablet weighing 0.650 g has been analyzed and contains 68.2 % ASA (180.16 g/mol) by mass. A student dissolved the tablet in hot NaOH and the cooled solution was diluted with DI water to the mark in a 250 mL volumetric flask. Exactly 3.00 mL of the solution was ...
April 20, 2008 by un

chem
An aspirin tablet weighing 0.475 g has been analyzed and contains 68.2 % ASA (180.16 g/mol) by mass. A student dissolved the tablet in hot NaOH and the cooled solution was diluted with DI water to the mark in a 250 mL volumetric flask. Exactly 3.00 mL of the solution was ...
April 18, 2011 by CHEMCHEM

Chemistry
An unknown salt is either NaF, NaCl or NaOCl when 0.050 moles of the salt is dissolved in water to form 0.500 L of solution, the pH of the solution is 8.08? is the solution NaF, NaCl, or NaOCl, I think its NaF?
November 15, 2012 by Josh G.

Chemistry
When 0.320 moles of NH4Cl is dissolved in 1.00 L of water, the temperature drops by 13.7 degrees C. What is the heat of solution of ammonium chloride? The solution has a density of 1.0012 g/mL and a specific heat of 0.9818 cal/g degrees C.
April 6, 2010 by adam

Chemistry
How many grams of potassium phosphate must be dissolved in 3.75 Liters of water to produce a soltuion that contains 8*10^23 potassium ions?
February 14, 2012 by Whitney

Chemistry
How many grams of potassium phosphate must be dissolved in 3.75 Liters of water to produce a soltuion that contains 8*10^23 potassium ions?
February 14, 2012 by Mary

college chemistry
A) In some regions of the southwest United States, the water is very hard. For example, in Las Cruces, New Mexico, the tap water contains about 560 ug of dissolved solids per milliliter. Reverse osmosis units are marketed in this area of soften water. A typical unit exerts a ...
April 28, 2010 by Stephanie

Algebra
To reduce 32 grams of a 25% solution of antiseptic to a 10% solution, how much distilled water should a pharmacist add?
March 2, 2010 by Chelsea

chemistry
how do you solve this problem?? how much NaOH (in grams) is needed to prepare 546mL of solution. What is the pOH of the solution?
July 4, 2010 by jin

Chemistry
What is the molarity of a solution made by dissolving 10 grams of CaBr2 in enough water to make 400 mL of solution?
June 20, 2011 by Brea

chemistry
If 1.72 grams of KHP are needed to exactly neutralize 20.9 mL of a barium hydroxide solution, what is the concentration of the base solution ?
October 21, 2011 by Anonymous

chemistry
If 1.72 grams of KHP are needed to exactly neutralize 20.9 mL of a barium hydroxide solution, what is the concentration of the base solution ?
October 21, 2011 by Anonymous

biology
if i have 1 litter of a 1M solution of HCI, how many grams of NaOH must i add to neutralize the solution and adjust the ph to 7
March 22, 2012 by de

chemistry
how many grams of NaOH should be used to make 200 mL of a 0.24M solution starting with a .4M HCL solution
September 22, 2012 by Tyler

chemistrey
What is the molarity of a solution prepared by dissolving 8 grams of BaCl2 in enough water to make a 450.0 mL solution?
March 7, 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
How would I calculate the heat of solution in Joules for dissolving 0.1 mole of NH4NO3 in 100 mL of water? The initial temperature was 22.8 degrees celsius and the temperature after the salt dissolved was 18.1 degrees celsius.
July 24, 2012 by Zach

Chemistry
If the 3 moles of Calcium Nitride was then dissolved in 2 L of liquid ammonium what would the molarity of the Calcium Nitride /ammonium solution be?
April 15, 2012 by moata

Chemisrty
How many grams of lithium metal would be produced if 0.500g of magnesium was added to a solution of lithium chloride?
May 5, 2012 by Elizabeth

Chemistry please help!
Please help. I have no idea how to do these 4 homework problems. 1- How many milliliters of 0.140 M HCl are needed to completely neutralize 42.0mL of 0.106 M Ba(OH)2 solution? 2-How many milliliters of 0.123 M H2SO4 are needed to neutralize 0.250 g of NaOH ? 3-If 55.2 mL of ...
February 22, 2010 by Robert

Chemistry
Concentrated sulfuric acid is 18.4 molar and has a density of 1.84 grams per milliliter. After dilution with water to 5.20 molar the solution has a density of 1.38 grams per milliliter. This concentration of H2SO4 is often used in lead storage batteries(like a car battery). 1....
January 13, 2011 by K

chemistry university
A 179 mL solution of a copper complex with a molecular weight of 491.9 g mol-1 was made. The absorbance of the solution at 638 nm wavelength was 0.376 using a 1 cm cuvette. It is known that this copper complex has a molar absorptivity (extinction coefficient) of 324.4 M-1 cm-1...
April 15, 2013 by angela

statistics
The weight of a can made from a machine is normally distributed with a mean of 25 grams and a standard deviation of 0.4 grams. What percentage of the cans from this machine would not meet the minimum required weight of 24 grams? Round to the nearest hundredth of a percent
November 5, 2013 by lynda

math
The weight of a can made from a machine is normally distributed with a mean of 25 grams and a standard deviation of 0.4 grams. What percentage of the cans from this machine would not meet the minimum required weight of 24 grams? Round to the nearest hundredth of a percent
November 5, 2013 by lynda

Chemistry
If solution A had a pH of 8, and solution B had 1,000 times this hydrogen ion concentration what would be the pH of solution B, and would solution B be acidic or basic?
November 14, 2011 by Kristin

Chemistry
Magnesium sulfate is often used it first aid hot-packs giving off heat when dissolved in water. When 2.00 g of MgSO4 dissolves in 15.0 mL of water (d= 1.00g/mL) at 25.0C, 1.51 kJ of heat is evolved. A) Write the balanced equation for this reaction. I have: MgSO4 + H2O --> ...
January 28, 2007 by Chris

Chemistry
Hello, please could someone help? Will calcium chloride (CaCl) granules be a suitable drying agent for drying hydrogen selenide (H2Se) gas? Or, will the calcium chloride granules also absorb the H2 from the H2Se? Thank you. Calcium chloride is CaCl2. It is an excellent drying ...
January 30, 2007 by Junior

chemistry
describe how to prepare a .50 m solution of lead nitrate using only 100.00 mls of water. aslo discribe how to prepare a .50m sloution of sodium iodide using only 100.00 mls of water. explain the differences that exist between these two solutions. OK i have answers for both 1....
February 15, 2012 by kate

Chemistry
How many grams of BaSO4 can dissolve in 1.5 L of a 0.010 M solution of Na2SO4? Ksp= 1.1 x 10^-10 I thought the answer was 1.1x10^-8 M then multiply by the molar mass to get the amount of grams but my answer isn't correct. PLEASE HELP!
December 4, 2010 by Maddie

chemistry
A 4.14 m solution of the solute methylene chloride dissolved in the solvent ethanol is available. Calculate the mass ( kg ) of the solution that must be taken to obtain 1487 g of methylene chloride. CH2Cl2-1327 (kg/m^3) C2H5OH-789.3 (kg/m^3)
January 28, 2010 by eng

Chemistry
When ammonium chloride is dissolved in water, the solution becomes colder. What can you say about the relative magnitudes of the lattice energy of ammonium chloride and its heat of hydration? Why does the solution form? What drives the process?
September 20, 2010 by Samantha

science
6g of impure NaOH was dissolved in 100ml of a solution.0.25molar solution of the base utilize 27.6ml of the solution containing 6g of trioxonitrate(5)acid.calculate (a)molar concentration of acid (b) molar concentration of base (c) mass of the base (d) % purity of the base
January 19, 2013 by chm 101

Chemistry
A student dissolves 18.9 grams of Zn(NO3)2 [molar mass = 189] in enough water to make 500.0 of solution. A 100.0 ml portion of this solution is diluted to 1000.0 ml.What is the [NO3 ] in the second solution? A) 0.0100M B) 0.0200M C) 0.0300M D) 0.0400M E) 0.0500M
February 8, 2011 by Paul

Chemistry
A student dissolves 18.9 grams of Zn(NO3)2 [molar mass = 189] in enough water to make 500.0 of solution. A 100.0 ml portion of this solution is diluted to 1000.0 ml.What is the [NO3 ] in the second solution? A) 0.0100M B) 0.0200M C) 0.0300M D) 0.0400M E) 0.0500M
February 9, 2011 by Paul

Chemistry
(a) The solubility of bismuth iodide (BiI3) in water is 4.891 x 10-3 M. Calculate the value of the solubility product. The dissolution products are Bi^3+ (aq) and I^- (aq). (b) Do you expect the solubility of (BiI3) in 0.1 M NaCL (aq) to be equal to, greater than, or less than...
January 11, 2013 by Chemgam

AP chem
A 0.345g sample of anhydrous BeC2O4, which contains an inert impurity, was dissolved in a sufficient water to produce 100ml of solution. A 20.0ml portion of the solution was titrated w/ KMnO4(aq). The balanced equation for the reaction that occurred is as follows: 16H^+(aq) + ...
January 4, 2007 by michelle

Chemistry
Elemental calcium is produced by the electrolysis of molen CaCl2. What mass of calcium can be produced by this process if a current of 8500 A is applied for 39 h? Assume that the electrolytic cell is 65% efficient. I found the mass to equal 1.6 x10^5g Ca, and that is correct. ...
November 15, 2009 by Julie

chemistry
How many grams of CuSO4 are there in 219 grams of an aqueous solution that is 20.2% by weight CuSO4
April 13, 2012 by Jeanne

chemistry
How many grams of NaOH are there in 187 grams of an aqueous solution that is 7.06 % by weight NaOH.
August 21, 2014 by jb

chemistry
How many grams of NiI2 are there in 263 grams of an aqueous solution that is 33.5 % by weight NiI2.
August 21, 2014 by jb

Chemistry
A sample of 2.08 grams of Z is dissolved into 500 grams of water which is in a styrofoam coffee cup. The temperature is monitored and is found to rise from 25.682◦C to 25.899◦C. What is ∆Hsolution for substance Z? Assume no heat is lost/gained by the ...
September 21, 2013 by John

Chemistry
How many milliliters of .200 M AgNO3 solution are required to precipitate most of the Cl- from the solution containing .855 grams of NaCl
September 27, 2010 by Aliana

Chemistry
What is the molarity of a solution prepared by dissolving 5.86 grams of naoh in enough water to make 250 milliliters of solution
May 9, 2013 by Talia flores

science
When substances such as sugar and table salt are dissolved in water, the freezing points of the new solutions are lower than the freezing point of water. Also, the more material dissolved, the lower the freezing point. The boiling points of these solutions, however, are higher...
May 12, 2010 by kayci

bio
how many grams of sucrose would you need to prepare 10 mK of ,o1M solution of sucrose(FW+342g/mole)? show your work
September 1, 2011 by milly

science
A test solution of sodium acetate is to contain 10 mg/ml of the metal ion. if 750 ml of the solution is needed, how many grams of sodium acetate must be used? What is the molarity of this solution?
April 20, 2011 by Drez

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