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October 22, 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: 64,228

chemistry
A student stated that the solubility of KCl at 20 degrees Celsius was 36 grams of KCl per 100 grams of solution. What is wrong with this statement?
March 8, 2014 by Anonymous

URGENT Chemistry question
a chemist wanted to make 100 grams of SO2. She had only 12 grams of sulfur and 4 grams of oxygen. Unfortunately, the amounts of reactants were not enough to make the desired product. How much S and O2 would she need in order to obtain the desired grams of product with no ...
November 3, 2011 by jermain

chemistry
1. Need help Assigning oxidation numbers. Is it true that wehn looking at atoms in compounds from group 1 or 2 they are given the oxidization number which is the same as there charge example NaCl Na has an oxidization number of 1? But is this also true for atoms in compounds ...
July 23, 2009 by micheal

chemistry
How many grams of HCOOH are needed to make 3.7 liters of aqueous solution of pH=3.5? I have followed the steps for a similar problem posted;I found x to 3.16e-4 mol/L but I'm having trouble converting it to grams.
October 6, 2010 by nick

science lab
I got these results from my dissolved oxygen lab: Temperature Dissolved Oxygen in Celcius (mg/L) 17 5.8 21 5.4 23 5.3 27 5.1 I understand that as the temperature increases the dissolved oxygen concentration decreases but i don't understand how to answer this question: does ...
September 13, 2009 by cara

CHEM
HOW MANY GRAMS OF SALT ARE REQUIRED TO PREPARE 300 G OF 15% SALT SOLUTION? HOW MANY GRAMS OF WATER ARE NEEDED?
December 4, 2010 by Anonymous

chemistry
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

Chemistry_DRBob222
Hello Dear I hope everything gorse very well. I did not get any respond from you. I render my solution to the problem over CO2 aq. + H2O ...> H2CO3 how much PH can be put at for the above-equation under P = 3600 psi, T= 190 oF, 0.208 liters fresh-H2O as we know, 1.45 grams ...
April 19, 2014 by Ramtin

chemistry
1. 15.0 g of sodium sulfate are dissolved in water to form 400.0 g of solution. The density of the solution is 1.056 g/mL at 25oC. a. What is the mass percent (%(w/w)) of sodium sulfate? b. What is the molarity of sodium sulfate? c. What is the molarity of the sodium ion? d. ...
June 13, 2011 by josh

Chem AP
A 0.505-g sample of a compound is dissolved in enough water to form 100.0 mL of solution. This solution has an osmotic pressure of 2.56 atm at 25C. If each molecule of the solute dissociates into two particles (in this solvent), what is the molar mass of this solute?
February 2, 2014 by Me

chemistry
A 125.0 mg sample of an unknown, monoprotic acid was dissolved in 100.0 mL of distilled water and titrated with a 0.050 M solution of NaOH. The pH of the solution was monitored throughout the titration, and the following data were collected. Determine the Ka of the acid. ...
March 11, 2014 by Mohanad

Chemistry
How much calcium chloride would you need to dissolve in 500 grams of water to create a solution whose boiling point is 100.40 C?
December 6, 2010 by anaymous

chemistry
What is the molarity of each kind of ion in a solution of magnesium chloride that contains 86.0 g of magnesium chloride dissolved in enough water to make 2.37 L of solution? M Mg2+ M Cl-
May 1, 2012 by kim

Chemistry
a saturated solution of barium chloride at 30C contains 150g water. How much additional barium chloride can be dissolved by heating this solution to 60C?
April 18, 2012 by Ondina

chemistry
What is the molarity of each kind of ion in a solution of magnesium chloride that contains 29.0 g of magnesium chloride dissolved in enough water to make 1.73 L of solution? MgCl2 Mg2+ + 2 Cl-
April 24, 2012 by megan

chemistry
a saturated solution of barium chloride at 30c contains 150g water. how much additional barium chloride can be dissolved by heating this solution to 60c
November 30, 2013 by anita

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
What is the final temperature of water when 2.70 grams of calcium chloride is dissolved in 25 mls of water at 25.5 Celcius.
October 22, 2012 by Chelsi

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
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

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

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

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
if 5.105 gm of KHP (Mwt=204.2)was dissolved in 250 ml,10.70 ml of this solution of KHP was titrated with 10.0 ml of NaOH . Calculate the concentration of NaOH solution
September 24, 2014 by bibi

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 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 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
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

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
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

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
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
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

Chemistyr
A 55.29-g sample of Ba(OH)2 is dissolved in enough water to make 1.20 L of solution. How many milliliters of this solution must be diluted with water in order to make 1.00 L of 0.100 M Ba(OH)2? (Ignore significant figures for this problem.)
September 28, 2014 by Andy

Chemistry
A 55.29-g sample of Ba(OH)2 is dissolved in enough water to make 1.20 L of solution. How many milliliters of this solution must be diluted with water in order to make 1.00 L of 0.100 M Ba(OH)2? (Ignore significant figures for this problem.)
September 28, 2014 by Andy

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

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
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

Chem Help Please Urgent!!!!!!
What is the boiling point of a solution of 0.515 grams of acenaphthene (C12H10) in 15 grams chloroform (CHCl3) given pure chloroform has a b.p. of 61.7 C and a Kbp of +3.63 C. Thanks!
September 12, 2014 by Kim

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

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

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
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 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
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

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

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 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

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

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

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
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 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
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
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 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

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