Thursday
July 24, 2014

# Search: The solubility of hydrogen sulfide in water at 25 degrees Celsius is 0.0932 M at 1.00 atm. If the partial pressure of H2S at Yellowstone is 0.12 atm, calculate the molarity of H2S in the mud pots

Number of results: 30,782

AP Chem
a 4.22 gram sample of copper II sulfide was added to excess hydrocholoric acid with hydrogen sulfide gas being generated and collected over water. What volume of hydrogen sulfide gas would be collected at 32 degrees Celcius and 749 torr? The vapor pressure of water at 32 ...
December 11, 2007 by Susan Shoemaker

chemistry.
The concentration of hydrogen sulfide, H2S, in hot springs is relatively high. This accounts for the rotten-egg smell around the "mud pots" in Yellowstone National Park. The solubility of hydrogen sulfide in water at 25 degrees Celsius is 0.0932 M at 1.00 atm. If the partial ...
February 20, 2007 by CRISTINA

chemistry
hydrogen sulfide may be prepared in the laboratory by the action of hydrochloric acid on iron (2) sulfide. How much iron (2) sulfide would be needed to prepare 15L of hydrogen sulfide?
February 5, 2009 by Anonymous

Chemistry
The bad smell of water containing hydrogen sulfide can be removed by the action of chlorine. The reaction is H2S(aq) + Cl2(aq)-->2HCl(aq) + S(s) If the hydrogen sulfide content of contaminated water is 22 ppm by mass, calculate the amount of Cl2 (in grams) required to ...
March 11, 2011 by sokun

Chemistry
Hydrogen sulfide burns in the presense of oxygen producing sulfiar dioxide and water I got HS + O2 >>> SO2 + H2O Its not balanced yet, but can you check if i wrote the equation right? Does the hydrogen sulfide need charges added to them?
February 4, 2009 by Chopsticks

Chemistry
What volume of hydrogen sulfide is required to produce 161 liters of sulfur dioxide according to the following reaction? (All gases are at the same temperature and pressure.) hydrogen sulfide (g) + oxygen (g)----> water (l) + sulfur dioxide (g)
April 25, 2012 by Mohamed

holy school
H2 S + HNO3 --------> NO + H2 O + S 150 g of hydrogen sulfide are dissolved in 3500 mL of water. a. What is the molarity of the hydrogen sulfide solution? b. How many grams of sulfur can be produced from 50 mL of this solution? c. 22.4 L of nitrogen monoxide gas are ...
March 3, 2013 by mamta

chemistry
what would be the name for Hsubscript 2 S? hydrogen sulfide gas? If it is in water solution, it has another name. what do you mean "if it is in a water solution it has another name"? You can't mix gas with water. You can change compounds from solid to liquid to gas, by heating...
June 6, 2007 by Anonymous

Chemistry
Hydrogen sulfide, H2S is a foul smelling gas. It burns to form sulfur dioxide. 2H2S +3O2 ----> 2N2 +6H2O Delta H=-1036kJ Calculate the enthalpy change to burn 26.7 g of hydrogen sulfide.
October 29, 2007 by Lauren

Chemistry
A sample of benzoic acid contaminated with NaCl and sand is to be recrystallized: Benzoid Acid: Solubility in water at 100 degrees Celsius in g/100 mL = 6.8, at 0 degrees Celsius in g/100 mL = 0.2. NaCl: Solubility in water at 100 degrees Celsius in g/100 mL = 39.1, at 0 ...
October 21, 2012 by Trisha

Chemistry
A saturated solution of barium chloride at 30 degrees celcius contains 150g of water. How much additional barium chloride can be dissolved by heating this solution by heating this solution to 60 degrees. Solubility of Bacl @ 30 degrees=38.2g/100g water solubility of Bacl @ 60 ...
June 20, 2013 by Sumaiyah

Chemistry
A saturated solution of barium chloride at 30 degrees celcius contains 150g of water. How much additional barium chloride can be dissolved by heating this solution by heating this solution to 60 degrees. Solubility of Bacl @ 30 degrees=38.2g/100g water solubility of Bacl @ 60 ...
June 20, 2013 by Sumaiyah

Chemistry
A saturated solution of barium chloride at 30 degrees celcius contains 150g of water. How much additional barium chloride can be dissolved by heating this solution by heating this solution to 60 degrees. Solubility of Bacl @ 30 degrees=38.2g/100g water solubility of Bacl @ 60 ...
June 20, 2013 by Sumaiyah

chemistry
If you collect hydrogen gas over water at a temperature of 45 degrees celcius, what is the volume of jst te hydrogen if the pressure of hydrogen is 1.23 atm and the grams of hydrogen was 2.6? What is the volume of the water?
December 4, 2010 by regina

chemistry
I am a freshman in college, and am taking a placement test soon, but haven't seen chemistry since 10th grade. I'd appreciate any help I can get from anyone here to help me solve this problem: Hydrogen and sulfur chemically combine to form the gas hydrogen sulfide, according to...
January 5, 2012 by John

Chemistry
25.00 mL of heavy water (D2O where D is a hydrogen with a neutron in its nucleus) at 20 degrees C was pipetted into a 37.234 g beaker. The final mass of the beaker was 64.859 9 a- what is the density of heavy water at 20 degrees C b-The density of normal water (the hydrogens ...
September 20, 2012 by Teresa

chemistry
What mass of aluminum hydroxide will be produced when 0.460 grams of aluminum sulfide react with water? How many grams of hydrogen sulfide are produced, according to the following equaton? Al2S3 + H20 -------> Al(OH)3 + H2S
January 19, 2012 by john

Chemistry
Acetic acid is a polar molecule and can form hydrogen bonds with water molecules. Therefore, it has high solubility in water. Yet acetic acid is also soluble in benzene (C6H6), a nonpolar solvent that lacks the ability to form hydrogen bonds. A solution of 3.8g of CH3COOH in ...
February 17, 2012 by James

Chemistry
What happens when hydrogen sulfide is heated through an iron sulfide solution?
November 28, 2011 by Emem Thompson

science
If 20g of sodium chloride is dissolved in 100 cm3 of water at 20c is the solution saturated? I looked up the solubility of NaCl in my copy of The Merck Index and it is listed as 1 gram NaCl dissolving in 2.8 mL water at 25 degrees C. Converting that means that 35.7 g NaCl ...
January 22, 2007 by Anonymous

Chemistry
How many more grams of Li SO4 can you dissolve in 250g of water at 10.0 degrees C than at 50 degrees C. The solubility is 35.0 at 10 degrees and at 50 degrees C it is at 32.5. Thanks DR Bob for all your help.
November 21, 2011 by John

chemistry
calculate the molar solubility of barium fluoride in water at 25 degrees C. The solubility product constant for BaF2 at this temperature is 1.0x10^-6
March 21, 2011 by roshan

chemistry
hydrochloric acid is added to 50 g of iron (III) sulfide. what weight of hydrogen sulfide is produced? FeS+2HNO3+Mg(NO3)2+H2
May 18, 2010 by kayla

Chemistry URGENT
can someone please tell me what formula's to use for the 2 following chemistry problems. 1. Calculate the solubility of potassium bromide at 23 degrees Celsius. hint. Assume that the solubility increases by an equal amount for each degrees between 20 degrees C and 30 degrees C...
April 28, 2014 by jazz

chemistry
what volume of hydrogen sulfide is produced by reaction of 0.5 mole of sodium sulfide with hydrochloric acid at a temp. of 20C and a pressure of 722 mm.
April 12, 2012 by Kimberly

LAB!!!!!
can someone check this for me???? Thanks I really appreciate it!!!!! Calcium Chloride Melting Point: 772 °C (anhydrous) Solubility (water): highly soluble in water Solubility (Ethanol): Soluble Conductivity: ATC mode: 183.25 Citric Acid Melting Point: 153 °C (426 K) Solubility...
June 19, 2006 by Hodgkin

Chemistry
At 25 degrees celsius and 775 Torr, carbon dioxide has a solubility of 0.0347 M in water. What is the solubility at 25 degrees celsius and 1830 Torr
February 22, 2013 by alyla

Chemistry
copper(1) chloride reacts with hydrogen sulfide. if 9.90 grams of copper(1) chloride and 10.2 grams of hydrogen sulfide are reacted together, what is the limiting reactant?
March 27, 2014 by Anonymous

chemistry
When will hydrogen bonding occur?Give an example of liquid other than H2O in which this type of force is important. In order for a hydrogen bond to occur there must be both a hydrogen donor and an acceptor present. The donor in a hydrogen bond is the atom to which the hydrogen...
October 5, 2012 by tracy

Chemistry
Question One Lead chloride dissolves in water according to PbCl2(s)<-> Pb^2+ + 2Cl^- (aq) The solubility in pure water has been measured to be 4.44g . L^-1 . Calculate the solubility product of lead chloride in pure water. Your answer should be in units of molarity ...
December 11, 2012 by Odesa

chemistry
What happens to the solubility of oxygen gas (O2) in water in each situation? a. The pressure of O2 over the solution is decreased. solubility decreases solubility remains the same solubility increases b. The temperature is decreased. solubility remains the same solubility ...
February 21, 2012 by krystal

chemistry
Hi, The question is, using Henry's law constant calculate the amount of Hydrogen Sulphide gas which could dissolve in 500ml of pure water (H20) placed near an active volcano assuming equilibrium conditions and ignoring any reactions with water. The atmosphere surrounding the ...
April 14, 2010 by Will

chemistry
Waht would happen to the solubility of potassium chloride in water as the water temperature increased from 25 degrees celsius to 100 degrees celsius?
May 16, 2010 by Anonymous

the solubility of silver sulfate in water is 0.223%(w/v) at 35 degrees celsius.calculate the solubility product of this salt at this temp. I got 1.46 X 10^-6 M is this right please thanks Andy
May 23, 2010 by Andy

chemistry
A solid substance P is soluble in water (1g/100 mL) at 25 degrees and 10g/100mL of water at 100 degrees. You are given a sample that contains 10 g of P and 2g of impurity G. If G has the same solubility as P, describe how you could purify P.
October 6, 2011 by Alyssa

Chemistry
Determine if the solubility would increase, decrease, or stay the same: 1) A saturated solution of sugar water is cooled from room temp to 0 degrees Celsius. 2) A solution of ocean water with dissolved oxygen is heated from 10 degrees Celsius to 15 degrees Celsius. 3) A ...
February 19, 2013 by Margaret

Chemistry
Question One The fictitious compound, pandemonium fluoride ( PnF2 ) has a Ksp value in water of 3.091x10^-9 M^3 at room temperature. Calculate the solubility of PnF2 in water. Express your answer in units of molarity. Question Two How would you expect the solubility of ...
December 11, 2012 by Odesa

Organic Chemistry
An impure sample contains 0.95g of benzoic acid and 0.05 of salicylic acid. Solubilities in water of the two compounds are given in the following table. Solubility at 20 degrees (g/10mL) benzoic acid: 0.029 salicylic acid: 0.22 Solubility at 100 degrees (g/10mL) benzoic acid: ...
September 18, 2011 by Anonymous

Chemistry
What is the solubility in water of salicylic acid at 25 degrees? I can only find it at 20 degrees.
May 25, 2009 by Sam

Chemistry !
The solubility of Mn(OH)2 is 3.04 x 10^-4 gram per 100 ml of solution . A) write the balanced chem equation for Mn(OH)2 in aqueous solution B) calculate the molar solubility of Mn(OH)2 at 25 degrees celcius C) calculate the value of the solubility product constant, Ksp, for Mn...
April 1, 2014 by Vee

chemistry
According to the following reaction, how many moles of oxygen gas are necessary to form 0.543 moles water? hydrogen sulfide (g) + oxygen (g) water (l) + sulfur dioxide (g)
October 30, 2011 by bessie

science
the solubility of sodium chloride in water at 10 degrees C is 32 g in 100 g of water. If 14 g of sodium chloride are dissolved in 50 g of water at 10 degrees, the solution is ___________.
May 19, 2011 by ciarra

Chemistry
If 150 mg of aspirin are rinsed with three portions of 10 mL of water at 25 degrees Celsius, how much aspirin is recovered? Solubility of aspirin in water at 25 degrees Celsius is one gram of aspirin per 300 mL of water.
May 20, 2014 by Veronica

What solubility of hydrogen and nitrogen is in liquid ammonia? Does any formula exist for calculation a solubility of hydrogen and nitrogen in liquid ammonia or do you know specific constants or numbers for this question? Thank you for your answers.
June 6, 2014 by Kika

Chemistry
Thioacetoamide decomposes in hot water to produce hydrogen sulfide, which is the active reactant in the first step of this reaction. write balanced equation of thioacetoamide in water. Does what I have below make sense? C2H5NS + H2O ----> H2S + C2H3NO
November 11, 2010 by Anonymous

science
What solubility of hydrogen and nitrogen is in liquid ammonia? Does any formula exist for calculation a solubility of hydrogen and nitrogen in liquid ammonia or do you know specific constants or numbers for this question? Thank you for your answers.
May 22, 2014 by Kika

Organic Chem
A 20 g mixture containing 95% (by weight) of A and 5% of B is recrystallized in toluene (b.p. 110 C). Solubility for compound A is 1.5 g @20 degrees and 10 g @ 110 degrees. For compound B solubility is 0.5 g @20 degrees and 8 g @ 110 degrees. What amount of solvent is needed ...
October 5, 2010 by Eric

High school AP chem
The solubility of Mn(OH)2 is 3.04 x 10^-4 gram per 100 ml of solution . A) write the balanced chem equation for Mn(OH)2 in aqueous solution B) calculate the molar solubility of Mn(OH)2 at 25 degrees celcius C) calculate the value of the solubility product constant, Ksp, for Mn...
April 1, 2014 by Chem review question

Chem
The solubility of Mn(OH)2 is 3.04 x 10^-4 gram per 100 ml of solution . A) write the balanced chem equation for Mn(OH)2 in aqueous solution B) calculate the molar solubility of Mn(OH)2 at 25 degrees celcius C) calculate the value of the solubility product constant, Ksp, for Mn...
April 1, 2014 by Bee

physical scince
answer the following question: QUESTION 4: What does it mean if a compound has a solubility of 15g in 100g of water at 0 degrees Celcius? A) 100 g of the compound will dissolve in 15 g of water at 0 degrees celcius B)15 g of the compound will dissolve in 100g of water at 0 ...
December 12, 2010 by fatima

Dalton's LAw
what is volume of hydrogen at STP of hydrogen collected over water at 10 degrees and 105.5 kPa
February 6, 2012 by Anonymous

chemistry
hydrogen sulfide + sodium hydroxide to lithium hydroxide + sodium sulfide. what is wrong with the equation?
February 28, 2012 by Anonymous

Chemistry
In the reaction 2H2S + 3O2 -> 2SO2 +2H2O, the oxidizing agent is 1.oxygen 2.water 3.sulfur dioxide 4.hydrogen sulfide oxygen?
March 20, 2011 by Alexis

organic chemistry
The solubility of a compound is 59g per 100mL in boiling methanol and 30g per 100mL in cold methanol, whereas its solubility in water is 7.2g per at 95 degrees Celsius and 0.22g per 100mL at 2 degrees Celsius. Which solvent would be better for recrystallization of the compound...
October 17, 2009 by hana

chem
In the reaction of calcium metal and water, 50.0 mL of hydrogen gas is collected over water at 25.0 degrees C with a total pressure of 752 mmHg. Calcualte the number of moles of hydrogen gas that was produced. Do we just plug this into n=pv/rt ? or is there like an extra step?
May 11, 2008 by natash

Organic Chemistry
An impure sample contains 0.95g of benzoic acid and 0.05 of salicylic acid. Solubilities in water of the two compounds are given in the following table. Solubility at 20 degrees (g/10mL) benzoic acid: 0.029 salicylic acid: 0.22 Solubility at 100 degrees (g/10mL) benzoic acid: ...
January 10, 2012 by Anna

chemistry
true or false: when water which is used to dissolve glucose is heated from 25 degrees to 80 degrees the solubility of the glucose is increased.
August 3, 2010 by tonya

Stoichiometry
How much iron (II) sulfide would be needed to prepare 15L of hydrogen sulfide? My balanced equation is 2HCl + FeS --> H2S + FeCl2. I have converted 15L H2S to mols, but I have no idea where to go from here.
February 24, 2008 by Jacob

chemistry
how does the solubility of gases in water compare to the solubility of solids in water as the temperature of the solution increases?
April 2, 2013 by maggie

Science
The products of the reaction between zinc and sulfuric acid are zinc sulfate, hydrogen sulfide, and water. Balance the equation using the electron-transfer method.
November 6, 2012 by Zach

chemistry
Write word equations for the following chemical reactions. a. Pure copper can be produced by heating copper(II) sulfide in the presence of diatomic oxygen from the air. Sulfur dioxide gas is also produced in this reaction. b. Water is formed by the explosive reaction between ...
January 6, 2011 by sec 8.1

chem
the solubility of lead(II) chloride, PbCl2, in water at 20 degrees Celcius is 1.00 g PbCl2/100 g of water. if you stirred 7.50 g PbCl2 in 400 g of water at 20 degrees Celcius, what mass of lead (II) chloride would remain undissolved?
July 8, 2010 by kelseyyy

General Chemistry
A 0.1358g zinc metal reacts completely with Dil HCL to produce 52.20ml of H2(g) at 22.0 degrees Celsius. The hydrogen gas is collected over water at 22.0 degree Celsius and a barometric pressure of 755 mm Hg. The water vapor pressure at 22.0 degrees Celsius is 19.8 mm Hg and ...
September 5, 2011 by Kathy

Chemistry
The solubility of CaSO4 is 0.209 g/100 mL of water at 30 degrees celsius. if 0.500 g CaSO4 is stirred overnight at 30 Degrees Celsius with 100.0 mL of water, a. How many grams of CaSO4 remain undissolved? b. Calculate the molarity of CaSO44 in solution
October 25, 2012 by Anne

Chemistry
The solubility of CO2 in water at 25 degrees C and 1 atm is 0.034 mol/L. What is its solubility under atmospheric conditions? (The partial pressure of CO2 in air is 0.0003 atm.) Assume that CO2 obeys Henry's law. My Answer: 1.02 x 10^-5 mol/L
December 2, 2010 by Sara

chemistry
I want to make sure I am correct in classifying whether the following properties of hydrogen are chemical or physical. thanks 1. hydrogen will burN in in oxygen to form water. CHEMICAL 2. hydrogen does not support combustion. CHEMICAL 3.hydrogen is usually found combined with ...
April 8, 2014 by david

chemistry
1-Barium sulfate and strontium sulfide both are placed into beaker of water. a- Will the strontium sulfide dissociate? ....... - If it does,write the equation showing the dissociation.
May 5, 2012 by Marie

Chemistry
At 25 degrees C and 1 atm gas pressure, the solubility of CO2(g) is 149 mg/100 g water. When air at 25 degrees C and 1 atm is in equilibrium with water, what is the concentration of dissolved CO2, in mg/100 g water? Air contains 0.037 mol % CO2(g). the answer should come out ...
February 18, 2013 by Jacqueline

Chemistry
Find the molar solubility of silver sulfide Ag2S. Ksp is 6.0 x 10^-51. I get 1.1 x 106-17. Right?
May 6, 2010 by Jim

Chemistry
Calculate the solubility of cadmium sulfide, CdS, in mol/L, given the Ksp value as 8.0 x 10^-27.
April 9, 2012 by Anonymous

chemistry
Barium sulfate is listed as insoluble on solubility tables. It does, however, dissolve to a small extent. Its solubility at 50 'C is 0.00034g in 100. g of water. Express this solubility in parts per million -I know the equation is ppm= (grams of solute/L of solution) x 10^6
March 20, 2011 by Emily

Chemistry
If you have two containers with water, one with water at 25 degrees C and the second with water 75 degrees C, explain in which one would you be able to dissolve less CO2 (a gas)? Explain in which one you would be able to dissolve more NaCl (check the solubility curve)?
April 29, 2008 by Cori

science
what is the solubility of alum in 100 ml of water at 20 degrees celcius?
February 22, 2011 by Anonymous

chemistry
Explain in word how you would prepae 250mL of a 3.000 M solution of Ba(OH)2 starting form barium hydroxide and water..... 2 equation 2CoI3 + 3 K2S= Co2S3 + 6KI 2 moles of Cobalt (III) iodide + 3 moles of Potassium sulfide = cobalt (III) sulfide + 6moles of Potassium Iodide ...
October 10, 2010 by pete

Chemistry
Tooth enamel is made up of hydroxyapatite, Ca_10(PO_4)_6(OH)_2 or the empirical formula, Ca_5(PO_4)_3(OH). Use the empirical formula for all calculations because stoichiometry plays two significant roles. A. Print the balanced chemical equation for the molar solubility of ...
April 7, 2011 by John

science
The solubility of NaCl in water at 100 degrees celsius is 39.1 g/100 g water. Calculate the boiling point of this solution?
July 5, 2012 by Frank

Chemistry
The solubility product of Fe(OH)3 is 8.0x10^-40. Calculate its solubility at 35 degrees Celsius in a saturated solution.
January 2, 2011 by Suha

Chemistry
The solubility of a certain compound in ice-cold water is 0.22g in 100mL. Its solubility in hot water is 4.35g in 100mL What is the best possible percent recovery we can expect for the re-crystallization of this compound in water?
September 29, 2011 by tom

Chemistry
Based on the fact that calcium carbonate is an ionic compound, why is it insoluble in water???? Look up your solubility rules. I'm not really sure why, but I know my book states right off that Most sulfide, carbonate, and phosphate salts are only slightly soluble. Slightly ...
February 18, 2007 by Dave

Chemistry
at 25C and 795 torr, carbon dioxide has a solubility of 0.0356 M in water. What is the solubility at 25 C and 2070 torr? ____ M I know that at a given temperature, the solubility of a gas in a liquid is directly proportional to its pressure but how would that be set up in an ...
February 16, 2012 by David

CHEMISTRY
2H2S + 3O2 → 2H2O +2SO2 given the balanced equation, if 4 moles of hydrogen sulfide react: How many moles of oxygen consumed? How many moles of water and sulfur dioxide are produced?
May 21, 2012 by Theodore

chemistry
A sample of hydrogen gas was collected over water at 36 degrees celsius and 855 mmHg. The volume of the container was 6.50 L. Calculate the number of moles of H2 collected. (vapor pressure of water is 44.6 torr at 36 degrees Celsius)
October 20, 2010 by lavonne

CHEMISTRY
Sulfur dioxide gas reacts with hydrogen sulfide gas to produce elemental sulfur (S8) and water vapor. Predict the temperature range over which this reaction is spontaneous.
March 2, 2011 by Josh

chemistry
If you collect hydrogen gas over water at a temperature of 85*C, what is the volume of just the water if the pressure of hydrogen is 1.23 atm and the grams of hydrogen was 2.6
May 6, 2014 by brandie

chemistry
what is the solubility of Ag in water at 0 degrees celcius? what is it for calcium carbonate? and yellow brass?
June 21, 2010 by Stephanie

chemistry
what is the solubility of potassium nitrate (KNO3) in 100.0g of water at 80.0 degrees celcius?
April 7, 2011 by veronica

1. An ionic compound solution is a(an)________ of electric current. non-conductor absorber emitter good conductor reverser ans: good conductor 2. Hydrogen bonding in water accounts for water's higher than expected boiling temperature the fact that ice floats in liquid water ...
February 24, 2008 by Mary

chemistry
A mixture contained zinc sulfide, ZnS, and lead sulfide, PbS. A sample of the mixture weighing 6.12 g was reacted with an excess of hydrochloric acid. The reactions are given below. ZnS(s) + 2 HCl(aq) → ZnCl2(aq) + H2S(g) PbS(s) + 2 HCl(aq) → PbCl2(aq) + H2S(g) If ...
October 24, 2010 by caroline

Chemistry
A sample of 40.0 mL of hydrogen is collected by water displacement at a temperature of 20 degrees Celcius. The barometer reads 751 torr. What is the volume of the hydrogen at STP (standard temperature and pressure)?
December 16, 2012 by Kia

chemistry
In an experiment, 6.700g of hydrogen sulfide is fully decomposed into its elements.If 0.396g of hydrogen is obtained in this experiment, how many grams of sulfur must be obtained?
July 27, 2013 by fatima

science
I have an older furnace dryer which is used for drying copper ore, it operates at a temperature of 1000-to 2500 degrees F.I have low concentrations of hydrogen sulfide in the area.My question is can sulfur dioxide be produced without the ore present at these temperatures.
July 7, 2012 by pierre

Organic Chemistry
I am trying to figure out if I am correct about the solubility of 9-fluorenone in NaOH and diethyl ether and the solubility of benzoic acid in NaOH and diethyl ether 9-fluorenone is soluble in diethyl ether because it can hydrogen bond with water so it is soluble in the ...
February 18, 2013 by Zach

Chemistry
The solubility of acetanilide in hot water (5.5 g/100 mL at 100C) is not very great, and its solubility in cold water (0.53 g/100 mL at 0C) is significant. What would be the maximum theoretical percent recovery from the first recrystallization of 0.5 g of acetanilide from 100 ...
September 20, 2012 by david

chemistry
two-thirds of the atoms that make up H2S are hydrogen. What percentage of the weight of hydrogen sulfide is the weight of the two hydrogens?
September 30, 2010 by Anonymous

Chemistry
Thallium (I) iodate is only slightly soluble in water. Its Ksp at 25°C is 3.07 x 10-6. Estimate the solubility of thallium iodate in units of grams per 100.0 ml of water. TlIO3(s) <==> Tl^+ + IO3^- Let x = molar solubility of TlIO3. The x is molar solubility of Tl^+ and ...
May 2, 2007 by Jason

Chemistry
Which of the following mixtures of KCl in water is a saturated solution and which is an unsaturated solution; 1)100g of KCl in 100mL of H2O at 40°C 2)50g of KCl in 100mL of H2O at 70°C 3) 120g of KCl in 100mL of H2O at 60°C My data is: Temperature82°C 58°C 39°C 18°C 16°C ...
February 19, 2013 by Lori

Chemistry
When 0.40 g of impure zinc reacted with an excess of hydrochloric acid, 127 mL of hydrogen was collected over water at 10 degress C The external pressure was 737.7 Torr. a) What volume would the dry hydrogen occupy at 1.00 atm and 298 K ? b) What amount (in moles) of H2 was ...
December 13, 2012 by Sandy

Chemistry
So I am trying to understand in molecular terms the solubility of NaCl in water. So there are intramolecular forces that are mostly ionic between the ions, creating this partial positive, partial negative substance. And the intermolecular forces are also ionic. Ionic forces ...
May 8, 2014 by Serena

AP Chem
When dealing with gasses, do you subtract the pressure of water vapor every time it is in the equation? I'm confused on when you subtract it. Such as this problem... NH4NO2(s) -> 2H2O(g) + N2(g) How many grams of ammonium nitrate must have reacted if 3.75 dm^3 of nitrogen ...
November 19, 2008 by Anna

Chemistry
Hi, my question is: "Classify each of the following as saturated, supersaturated, or unsaturated: KNO3 90g/100g at 82*C NaCl 36g/100g at 23*C KCl 35g/100g at 18*C NaNO3 90g/100g at 28*C How do I determine if they are saturated, supersaturated, or unsaturated? Since the ...
June 11, 2006 by Waleed

Pages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | Next>>

Search
Members