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April 20, 2014

Search: Chemistry (Insulated Vessel, temperature and vol.)

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Chemistry (Insulated Vessel, temperature and vol.)
Insulated vessel has two compartments separated by a membrane. One side is 1 kg of steam at 400 C and 200 bar. The other side is evacuated. The membrane ruptures filling the entire volume. The final pressure is 100 bar. Determine the final temperature of the steam and the ...
Tuesday, October 2, 2012 at 11:27pm by Simon

Chemistry
A 522g piece of copper tubing is heated to 89.5C and placed in an insulated vessel containing 159g of water at 22.8C. Assuming no loss of water and a heat capacity for the vessel of 10.0J/K, what is the final temperature of the system ( c of copper = 0.387 J/g*K)?
Tuesday, November 11, 2008 at 7:38pm by Ray

chemistry
a 506g piece of copper tubing is heated to 89.5C and placed in an insulated vessel containing 159g of water at 22.8C. Assuming no loss of water and a heat capacity for the vessel of 10.0J/K, what is the final temperature of the system (c of copper = 0.387 J/g*K)?
Saturday, November 15, 2008 at 6:44pm by carl

College Chemistry
A 542-g piece of copper tubing is heated to 89.5 degrees Celcius and placed in an insulated vessel containing 159 g of water at 22.8 degrees Celcius. Assuming no loss of water and a heat capacity for the vessel of 10.0 J/K, what is the final temperature of the system (c=0.387 ...
Sunday, February 21, 2010 at 8:32pm by Courtney May

Chemistry
A 225 g sample of xenon is placed in a 15.6 L stainless steel vessel at 27.0C. a. What is the pressure in the vessel? b. If the temperature is raised to 200C, what is the pressure in the vessel? c. The air pressure outside the vessel is 1.00 atm. If the vessel is opened to ...
Thursday, May 19, 2011 at 12:33am by Shell

Chemistry
I am having a horrible time with Enthalpy change. I understand how to find specific heat I believe, but the heat capacity of the vessel is given as 10 J/K. My problem is that my professor did not show us how to work this type of problem, and I desperately need help with it. ...
Friday, July 2, 2010 at 12:57pm by Casey

chemistry
A 94.7 g sample of silver (s= 0.237 J/(g x Degree C)), initially at 348.25 Degrees C , is added to an insulated vessel containing 143.6 g of water (s=4.18 J/(g x Degree C)), initially at 13.97 Degrees C. At equilibrium, the finial temperature of the metal-water mixture is 22....
Wednesday, November 14, 2012 at 9:10pm by marcus

chemistry
If 10g of steam at 110 c is pumped into an insulated vessel containing 100g of water at 20 c, what will be the equilibrium temperature of the mixture? spheat H2O(l)=4.18J/g*c, spheat h2O(g)=2.03J/g*c, heat of vap H2O(l)=2.260kJ/g
Sunday, August 1, 2010 at 8:50am by Holly

Physics
A vessel contains 10 kg of water and an unknown mass of ice at 0C. The temperature of the vessel is monitored for 60 minutes. During the first 50 minutes, the temperature remains at 0C. For the next 10 minutes, the temp steadily increases from 0C to 2C. a. Find the rate ...
Thursday, December 8, 2011 at 7:26pm by Megan

Chemistry
H2 and F2 react according to the following equation, forming HF. H2(g) + F2(g)  2HF(g); H = 271 kJ If H2(g) and F2(g) were mixed in a thermally insulated vessel, the reaction that occurred would be a. endothermic, and the temperature of the reaction system ...
Tuesday, July 2, 2013 at 8:01pm by Kayla

AP Chemistry
Three gases, xenon, helium, and hydrogen are confined in a 10.0 L vessel at a pressure of 7.0 atm. Intially the vessel contains 3.0 moles of xenon, 2.0 moles of helium, and 2.0 moles of hydrogen. What would the partial pressure of helium be if 5.0 moles of hydrogen are added ...
Wednesday, April 6, 2011 at 12:49pm by Paxton

Chemistry
Sulfur trioxide gas, one of the causes of acid rain, is produced in the upper atmosphere when oxygen reacts with sulfur dioxide gas in the reaction shown below: 2SO2(g) + O2(g) <--> 2SO3(g) deltaH0 = -197kJ The gases are placed in a reaction vessel and allowed to come to...
Friday, April 6, 2012 at 1:31pm by Abbagail

Chemistry
A sample of steam with a mass of 0.552 g and at a temperature of 100 C condenses into an insulated container holding 4.45 g of water at 7.0 C. Assuming that no heat is lost to the surroundings, what will be the final temperature of the mixture?
Tuesday, January 19, 2010 at 6:20pm by eddie

chemistry
A sample of steam with a mass of 0.552 and at a temperature of 100 condenses into an insulated container holding 4.35 of water at 6.0. Assuming that no heat is lost to the surroundings, what will be the final temperature of the mixture?
Sunday, January 29, 2012 at 5:57pm by amy

physics
in a vessel of 40 cm3 of water at 4 C is introduced aluminum over 80g to 8 C. neglecting the effect of the vessel, calculate final temperature
Wednesday, November 24, 2010 at 9:49pm by karla

chem
The decomposition of ammonium hydrogen sulfide that is shown below is an endothermic process. NH4HS(s) reverse reaction arrow NH3(g) + H2S(g) A 6.1589 g sample of the solid is placed in an evacuated 4.000 L vessel at exactly 24C. After equilibrium has been established, the ...
Wednesday, February 10, 2010 at 4:03pm by Anonymous

Chemistry
Suppose a piece of lead with a mass of 14.9 g at a temperature of 92.5 C is dropped into an insulated container of water. The mass of water is 165 g and its temperature before adding the lead is 20.0 C. What is the final temperature? I know that I have to multiply (mass in ...
Thursday, August 23, 2007 at 9:06pm by Anonymous

Chemistry
Solid copper oxide reacts with ammonia gas according to the following equation: 3CuO + 2NH3 -> 3Cu + N2 + 3H20 50 grams of CuO is placed in an 80L reaction vessel, and the vessel was evacuated. Ammonia gas was then gradually introduced into the vessel, slow enough for the ...
Monday, September 30, 2013 at 10:41pm by Nikki

Chemistry
A sample of steam with a mass of .550 g and at a temperature of 1 degrees C condenses into an insulated container holding 4.40 g of water at 5.0 degrees C. Assuming that no heat is lost to the surroundings, what will be the final temperature of the mixture?
Tuesday, January 24, 2012 at 12:53pm by Becca

chemistry
The vapor pressure of water at 80 degrees c is 355mmHg. A 100cm3 vessel contained wateraturated oxygen at 80 degrees c., the total gas pressure being 760 mmHg. The contents of the vessel were transferred by pumping to a 50cm3 vessel at the same temperature. What were the ...
Wednesday, October 26, 2011 at 9:22pm by el

Chemistry
A sample of steam with a mass of 0.550 g and at a temperature of 100 degrees C condenses into an insulated container holding 4.40 g of water at 5.0 degrees C. Assuming that no heat is lost to the surroundings, what will be the final temperature of the mixture?
Wednesday, January 25, 2012 at 1:26pm by Becca

physics
The temperature of the piston is not increased if it is insulated. The gas that it compresses will increase in temperature.
Tuesday, May 25, 2010 at 7:40pm by drwls

kinetic theory
Air is filled at 60deg C in a vessel of open mouth. Upto what temperature should the vessel be heated so that one-fourth of the air may escape? Ans 171degC
Sunday, April 29, 2012 at 7:42am by ridhi

Physics Help!
Gas is contained in an 8.45 liter vessel at a temperature of 19.8oC and a pressure of 8.70 atm. Determine the number of moles of gas in the vessel. Do not enter units.
Tuesday, November 6, 2012 at 8:35pm by Emily

Chemistry
A vessel containing 39.5 cm^3 of helium gas at 25C and 106kPa was inverted and placed in cold ethanol. As the gas contracted, ethanol was forced into the vessel to maintain the same pressure of helium. If this required 7.7cm^3 of ethanol, what was the final temperature of the...
Tuesday, October 25, 2011 at 11:34pm by Anonymous

Chemistry
Two vessels are labeled A and B. Vessel A contains NH3 gas at 70C, and vessel B contains Ne gas at the same temperature. If the average kinetic energy of NH3 is 7.1 10-21 J/molecule, calculate the mean-square speed of Ne atoms in m2/s2.
Monday, October 13, 2008 at 4:41pm by Niki

Chemistry
1)Suppose a piece of lead with a mass of 14.9 g at a temperature of 92.5 degrees is dropped into an insulated container of water. The mass of water is 165 g and its temperature before adding the lead is 20.0 degrees. What is the final temperature of the system? 2)What are the ...
Monday, January 7, 2008 at 10:29pm by Mike

Chemistry
A vessel containing 39.5 cm3 of helium gas at 25C and 106 kPa was inverted and placed in cold ethanol. As the gas contracted, ethanol was forced into the vessel to maintain the same pressure of helium. If this required 17.8 cm3 of ethanol, what was the final temperature of ...
Sunday, January 20, 2013 at 8:54pm by jacfar

Chemistry
A vessel containing 39.5 cm3 of helium gas at 25C and 106 kPa was inverted and placed in cold ethanol. As the gas contracted, ethanol was forced into the vessel to maintain the same pressure of helium. If this required 17.8 cm3 of ethanol, what was the final temperature of ...
Sunday, January 20, 2013 at 11:52pm by jacfar

Chemistry
A vessel containing 39.5 cm3 of helium gas at 25C and 106 kPa was inverted and placed in cold ethanol. As the gas contracted, ethanol was forced into the vessel to maintain the same pressure of helium. If this required 17.8 cm3 of ethanol, what was the final temperature of ...
Thursday, January 24, 2013 at 4:13pm by flame

Chemistry
A vessel containing 39.5 cm3 of helium gas at 25C and 106 kPa was inverted and placed in cold ethanol. As the gas contracted, ethanol was forced into the vessel to maintain the same pressure of helium. If this required 18.8 cm3 of ethanol, what was the final temperature of ...
Sunday, September 22, 2013 at 2:40pm by Hannah

chemistry
What is the pressure in a 1.5 L vessel containing 0.25 moles of O2 if the temperature is 37oC?
Saturday, May 2, 2009 at 2:02am by Anonymous

Final Temperature
A sample of steam with a mass of 0.553 g and at a temperature of 100 degrees C condenses into an insulated container holding 4.25 g of water at 4.0 degrees C. Assuming that no heat is lost to the surroundings, what will be the final temperature of the mixture?
Tuesday, January 15, 2013 at 3:46pm by Amy

physics
A piece of metal with a mass of 1.9 kg, specific heat of 200 J/kg ◦ C, and initial temperature of 100 ◦ C is dropped into an insulated jar that contains liquid with a mass of 3.9 kg, specific heat of 1000 J/kg ◦ C, and initial temperature of 0 &#...
Tuesday, January 17, 2012 at 8:37pm by Josh

Chemistry
Can someone check my answer for me... 1)Suppose a piece of lead with a mass of 14.9 g at a temperature of 92.5 degrees is dropped into an insulated container of water. The mass of water is 165 g and its temperature before adding the lead is 20.0 degrees. What is the final ...
Tuesday, January 8, 2008 at 4:20am by Mike

chemistry
A 210 g iron bar is heated and then placed in 100. g of water in an insulated container. The water temperature increases from 21.2 C to 53.3 C. What was the initial temperature of the iron bar? (Specific heats: cFe = 0.449 J/gK; cwater = 4.184 J/gK)
Thursday, December 1, 2011 at 11:07pm by Faisal

physics
a 3.55 kg sample of an alloy is heated to 295 degree and plunged into an aluminium vessel containing 10.0L of water. the initial temperature of the vessel and water is 19 degree.the mass of the aluminium vessel is 2.1 kg and the specific heat of aluminium is 900 J kg-1K-1. if ...
Thursday, April 26, 2007 at 5:01am by Twinkle

9
In an closed vessel 300 torr of argon gas is filled and the vessel heated to 925 degree celcius from room temperature. What will be the pressure at 925 degree celcius .
Tuesday, May 11, 2010 at 7:54am by radhakrishnan

science
350g ofwater at 30 degree celcius is contained in a copper vessel of mass 50g. Calculate the mass of ice required to bring down the temperature of the vessel and its content at 5 degree celcius.
Sunday, March 16, 2014 at 8:02am by manoj

Chemistry
An insulated container has 54 grams of 90 C water. How much ice is required to lower the temperature of 50C? No ice remains.
Wednesday, March 13, 2013 at 1:12am by Sarcasticqueen

Science- Chemistry Ap
2SO3(g) -> 2SO2(g) + O2(g) Delta H = 197kj For this reaction shown above, describe the changes that will occur to the number of moles of SO3 under the following conditions: (a) Additional oxygen is added to the reaction vessel. (b) The pressure in the reaction vessel is ...
Wednesday, April 28, 2010 at 10:16pm by Jake

Chemistry
A 1.00 L vessel contains 5 g N2 and 1.5 g H2O at 25 degrees C. Calculate the mass of LIQUID water that would be present in the vessel.
Wednesday, July 4, 2012 at 11:58am by Kellie

chemistry
Suppose you mix 20.1 g of water at 66.2C with 44.6 g of water at 35.7C in an insulated cup. What is the maximum temperature of the solution after mixing?
Friday, October 29, 2010 at 1:19am by caroline

Chemistry
Suppose you mix 20.1 g of water at 66.2C with 45.1 g of water at 35.7C in an insulated cup. What is the maximum temperature of the solution after mixing?
Tuesday, June 7, 2011 at 8:23am by Lance

Chemistry
An element, M, reacts with oxygen to give an oxide of formula M3O4. A sample of M of 257 mg is placed in a 500.0 mL vessel containing oxygen at 0.991 atm and 23.0C. After cooling the vessel back to the original temperature, the pressure was 0.813 atm. Calculate the molar mass...
Saturday, February 2, 2008 at 5:02pm by Student

Chemistry
mols added to vessel = M x L = 0.735 x 0.350 = 0.25725 mols titrated in 50.00 mL = M x L = 0.001 x 0.03221 = 3.221 x 10^-5 which is 3.221 x 10^-5 mols/0.05 L = 6.442 x 10^-4 mols/L. L in vessel = 0.25725 mols x L/6.442 x 10^-4 = ?? Liters in vessel. Convert to gallons. Check ...
Monday, April 28, 2008 at 2:22am by DrBob222

CHEMISTRY
What is the pressure in a 1.5 L vessel containing 0.25 moles of O2 if the temperature is 37oC? (R, the universal gas constant, is 0.082 L atm / mole K.)
Tuesday, July 22, 2008 at 11:26pm by Anonymous

chemistry
What is the pressure in a 1.5 L vessel containing 0.25 moles of )2 if the temperature is 37 degrees C? R the universal gas constatn is 0.082 L atm/mole K
Sunday, May 6, 2012 at 3:11pm by Ambra

chemistry 1st year
A 5 liter vessel contains 2g of hydrogen and 28g of nitrogen at 27 temperature.find to total mixture ?
Monday, July 1, 2013 at 5:04pm by mirza

CHEMISTRY
Calculate the change in entropy that occurs when 17.68 g of ice at -12.7C is placed in 54.05 g of water at 100.0C in a perfectly insulated vessel. Assume that the molar heat capacities for H2O(s) and H2O(l) are 37.5 J K-1 mol-1 and 75.3 J K-1 mol-1, respectively, and the ...
Tuesday, October 23, 2012 at 2:21am by Sarah

ap chemistry help!!!!
Ive been absent from class because of the flu so i don't have a clue how to figure these out! Help! due tomorrow at 12! 1).Suppose that 135 g of ethanol at 23◦C is mixed with 255 g of ethanol at 75◦C at constant atmospheric pressure in a thermally insulated vessel...
Wednesday, October 24, 2012 at 11:50pm by harry

Chemistry
The capacity of a large irregularly shaped vessel cannot be computed from geometric data. As a result, it is decided that the volume be established from analytical data. The vessel is filled to its capacity mark with calcium-free water. A known small amount of a concentrated ...
Monday, April 28, 2008 at 2:22am by Gabby

chemistry-thermochemistry
A student mixes 85.7 g of water at 68.0C with 50.7 g of water at 24.5C in an insulated flask. What is the final temperature of the combined water
Sunday, October 5, 2008 at 12:55pm by james

Chemistry
A student mixes 85.1 g of water at 69.6°C with 58.1 g of water at 22.0°C in an insulated flask. What is the final temperature of the combined water?
Saturday, February 9, 2013 at 3:35pm by John

Chemistry
FeS2 (s) + O2(g) -----> SO2(g) +Fe203(s) (unbalanced) a production error leads to the sulfide being placed in a 950-L vessel with insufficient oxygen. Initially, the partial pressure of O2 is 0.64 atm, and the total pressure is 1.05 atm, with the balance due to N2. The ...
Thursday, October 13, 2011 at 2:48pm by tori

chemistry
Suppose a piece of lead with a mass of 14.9g at a temperature of 92.5c is dropped into an insulated container of water. The mass of water is 165g and its temperature before adding the lead is 20.0c. What is the final temperature of the system? The sum of the heats gained is ...
Thursday, March 15, 2007 at 3:12pm by Jon

Physics(12th grade)
When the temperature of a gas in a vessel is increased by 1C then the pressure is increased by 0.5%. what will be its initial temperature?
Monday, April 9, 2012 at 12:52am by Tulika

Chemistry
A 455-g chunk of iron is removed from an oven and plunged into 385g water in an insulated container. The temperature of the water increases from 27 degrees celsius to 89 degrees celsius. If the specific heat of iron is 0.449 J g^-1 degrees Celsius^-1, what must have been the ...
Thursday, November 4, 2010 at 3:29pm by Angel

chemistry
An insulated beaker with negligible mass contains liquid water with a mass of 0.255{kg} and a temperature of 76.0{C} How much ice at a temperature of -19.9 C must be dropped into the water so that the final temperature of the system will be 32.2? Take the specific heat of ...
Monday, December 7, 2009 at 12:58pm by dan

physics
if a piston is insulated and being pushed, is the temperature increased
Tuesday, May 25, 2010 at 7:40pm by bme1

chemistry
Raoul Pictet, the Swiss physicist who first liquefied oxygen, attempted to liquefy hydrogen. He heated potassium formate, KCHO2, with KOH in a closed 2.50 L vessel. KCHO2(s) + KOH(s) → K2CO3(s) + H2(g) If 50.1 g of potassium formate reacts in a 2.50-L vessel, which was ...
Sunday, October 24, 2010 at 8:39pm by caroline

Physics
A 3.9010^2kg cube of ice at an initial temperature of -18.0degreesC is placed in 0.480kg of water at 41.0degreesC in an insulated container of negligible mass. Calculate the change in entropy of the system. I found the equilibrium temperature to be at 304.9K, then used change...
Tuesday, December 7, 2010 at 12:39am by Melissa

chemistry
A sample of a saturated hydrocarbon is placed in a 1.0L vessel at 107oC. The pressure of the sample at these conditions is .40 atm. A stoichiometrically equivalent amount of oxygen is added to the vessel and the mixture is combusted. Following combustion, the pressure in the ...
Tuesday, May 22, 2012 at 6:42pm by bill

AP Chemistry
What would be the final temperature of the system if 20 g of lead at 100◦C are dropped into 20 g of water at 30 ◦C in an insulated container?
Monday, September 30, 2013 at 4:34pm by Anonymous

What is the Final Temperature?
Four ice cubes at exactly 0 degrees C having a total mass of 53.0 g are combined with 120 g of water at 77 degrees C in an insulated container. If no heat is lost to the surroundings, what will be the final temperature of the mixture?
Sunday, January 6, 2013 at 1:03pm by Amy

thermodynamic
A rigid vessel of 1m^3 contains steam at 20 bar and 400 degree C. the vessel is cooled until the steam is just dry saturated. Calculate the mass of steam in the vessel.
Sunday, July 17, 2011 at 3:43pm by Amber

physics
liquid pressure is independent on the? a. shape of the containing vessel b. area of the bottom of the containing vessel c. both a and b and d d. height of the containing vessel
Wednesday, February 29, 2012 at 6:08am by ricajane

physics
A monatomic ideal gas is thermally insulated, so no heat can flow between it and its surroundings. Is it possible for the temperature of the gas to rise? If the temperature can rise, how does it rise?
Monday, November 25, 2013 at 10:55pm by john

chemistry
when 100mL of 1.00 mol/L sodium hydroxide is added to 100mL of 1.00mol/L hydrochloric acid in an insulated container, the temperature rises from 21.0 degress to 34.6 degrees. Calculate the heat of neutralisation for the reaction.
Sunday, August 14, 2011 at 7:32am by Anonymous

chemistry
Constant volume? Exactly what is the volume...200ml, 500ml, or 700ml. It would be interesting to see how this reaction was accomplished. What was the temperature of the vessel when completed?
Tuesday, October 28, 2008 at 12:57am by bobpursley

Chemistry
Four ice cubes at exactly 0 Celsius having a total mass of 55.0g are combined with 120g of water at 77 Celsius in an insulated container. If no heat is lost to the surroundings, what will be the final temperature of the mixture?
Monday, September 10, 2012 at 5:15pm by Ben

chemistry
when 0.100mole H2S was put into a 10.0-L vessel and heated to 1132C, it gave an equilibrium maixture containing 0.0285 mol H2. @hat are the valuesw of Kc and Kp at this temperature?
Tuesday, February 14, 2012 at 2:34pm by tammie

chemistry
2nd revision to the question, it is 7.62atm not 7.2atm, its now all correct on the question. sorry again Fluorine and krypton react to form binary compounds when a mixture of the two gases is heated to 500C in a nickel reaction vessel. A 100mL nickel container is filled with ...
Tuesday, May 10, 2011 at 1:09am by alex

Chemistry
A student mixes 95.1g of water at 77.5 degree C with 42.7g of water at 141.1 degree C in an insulated flask. What is the final temperature of the combined water?
Sunday, October 31, 2010 at 9:20pm by Linetta De La Cruz

Science
A 500 mL bottle of water, which is at 25 degrees C, is poured over 120 g of ice at -8 degrees C. What will be the final temperature of the water when all the ice has melted. Assume that container is insulated and does not change temperature.
Wednesday, January 20, 2010 at 6:14pm by Bert

Science
A 500 mL bottle of water, which is at 25 degrees C, is poured over 120 g of ice at -8 degrees C. What will be the final temperature of the water when all the ice has melted. Assume that container is insulated and does not change temperature.
Thursday, January 21, 2010 at 5:44pm by Bert

chem
A vessel containing 39.5 cm^3 of helium gas at 25 degrees celsius and 106 kPa was inverted and placed in cold ethanol. As the gas contracted, ethanol was forced into the vessel to maintain the same pressure of helium. If tihs required 7.7 cm^3 of ethanol, what was the final ...
Sunday, November 9, 2008 at 4:25pm by Anna

Chemistry
A 156.5 g piece of stainless steel was heated to 510 C and quickly added to 25.11 g of ice at -30 C in a well-insulated flask that was immediately sealed. What will be the final temperature of the system if there is no loss of energy to the surroundings? Does anyone know how I...
Sunday, October 26, 2008 at 1:47pm by Jerry

Chemistry
Four ice cubes at exactly 0 ^\circ {\rm{C}} having a total mass of 55.0g are combined with 110g of water at 77^\circ C in an insulated container. Part A If no heat is lost to the surroundings, what will be the final temperature of the mixture?
Tuesday, January 22, 2013 at 1:53pm by Brittany

Chemistry
Will someone show me the formula or help me through working this question? Thanks! A 2.85g lead weight, initially at 10.3 deg C, is submerged in 7.55g of water at 52.3 deg C in an insulated container. what is the final temperature of both substances at thermal equilibrium?
Thursday, April 10, 2014 at 5:45pm by Cathy

Chemistry
Suppose it is a hot summer day (40.0 degrees C = 104.0 degrees F), and you have left a can of hairspray outside so the gas within it is now at the same temperature of its surroundings. As part of your chemistry lab class, you have to build a safe and effective potato gun to ...
Saturday, March 16, 2013 at 7:51pm by Anonymous

Chemistry
Suppose it is a hot summer day (40.0 degrees C = 104.0 degrees F), and you have left a can of hairspray outside so the gas within it is now at the same temperature of its surroundings. As part of your chemistry lab class, you have to build a safe and effective potato gun to ...
Saturday, March 16, 2013 at 7:52pm by Tonya

Chemistry
Use the following information to identify element A and come pound B, then answer questions a and b. An empty glass container has a mass of 658.572 g. It has a mass of 659.452 g after it has been filled with nitrogen gas at a pressure of 790. torr and a temperature of 15C. ...
Saturday, May 31, 2008 at 5:55pm by Alex

Chemistry
(a) A 102-g sample of water is placed in an insulated container and allowed to come to room temperature at 21C. To heat the water sample to 41C, how much heat must you add to it? kJ (b) Consider the hypothetical reaction, being run in an insulated container that contains 102...
Tuesday, June 7, 2011 at 8:25am by Lance

chemistry
A 32.2 g iron rod, initially at 22.3 C, is submerged into an unknown mass of water at 63.9 C, in an insulated container. The final temperature of the mixture upon reaching thermal equilibrium is 58.6 C. What is the mass of the water?
Monday, March 19, 2012 at 11:21pm by HELP

Chemistry
A 35.0-g iron rod, initially at 25.6C, is submerged into an unknown mass of water at 67.7C, in an insulated container. The final temperature of the mixture upon reaching thermal equilibrium is 63.5C. What is the mass of the water?
Saturday, November 17, 2012 at 11:06pm by Matt

Chemistry
Pressure in the vessel is caused by the molecules of the gas impinging on the walls of the vessel. As the volume is decreased, there are more molecules in the same volume (that is the concentration of the gas is increasing), therefore, more molecules are hitting the walls of ...
Saturday, April 5, 2008 at 7:25pm by DrBob222

chemistry
an ideal gas at 75.0 c and 760 .mm hg is contained in a flexible vessel. Its volume is doubled and the pressure remains.unchanged .determine the temperature of the gas as a consequence of these changes
Friday, August 26, 2011 at 11:38am by devin boutte

chemistry
at a particular temperature, k equals 2.0 x 10 to the -6 power for the reaction 2CO2 <-> 2CO + O2 if 2.0 mol CO2 is initially placed into a 5.0 L vessel, calculate the equilibrium concentration of all species
Monday, December 3, 2012 at 1:44am by Anonymous

Chemistry
I assume you know what a beehive is. It is used to support an upside down collection vessel over the beehive, the beehive lets gas escape only thru the "roof" to go into the vessel.
Tuesday, June 4, 2013 at 11:56am by bobpursley

Chemistry
Explain the following observation in terms of the collision theory, restricting each to about 25 words. NO(g) + O3(g)--> NO2(g) + O2(g) (a) An increase in temperature increases the reaction rate. (b) Compressing the gases into a smaller volume increases the reaction rate. (...
Thursday, January 20, 2011 at 10:53am by Patrick

Physics
A 3 Kg lead ball is dropped into a 3 L insulated pail of water initially at 20.0 degrees C. If the final temperature of the water-lead combination is 25 degress C, what was the initial temperature of the lead ball?
Saturday, March 19, 2011 at 5:24pm by Kelsey

physics
When an immersion glass thermometer is used to measure the temperature of a liquid, the temperature reading will be affected by an error due to heat transfer between the liquid and the thermometer. Suppose you want to measure the temperature of 7 mL of water in a Pyrex glass ...
Saturday, December 10, 2011 at 12:27pm by tienking

Chemistry
A 0.35 mol sample of an ideal gas is held in a vessel at 0.C and a pressure of 785 torr. What is the volume of the vessel? (R=62.36L x torr/mol x K)
Monday, November 9, 2009 at 4:04pm by Christina

Chemistry
4 L of oxygen at a pressure of 400 Kpa and 1L of nitrogen at 200 Kpa were introduced in to 2 L vessel. (A)What is the total pressure of the gases in the vessel. (B)What is the mole fraction of each gas?
Saturday, September 1, 2012 at 7:08am by Yeneta

Chemistry
Four ice cubes at exactly 0 degrees Celsius having a total mass of 55.0g are combined with 120g of water at 77 degrees Celsius in an insulated container. If no heat is lost to the surroundings, what will be the final temperature of the mixture?
Tuesday, January 22, 2013 at 10:08pm by Brett

science
The temperature of an electronic oven is 160 C. The temperature at the outer surface of the oven in the kitchen is 50 C. The oven (surface area = 1.6 m2) is insulated with material that has a thickness of 0.020 m and a thermal conductivity of 0.045 J/(s m C). How much ...
Wednesday, November 21, 2012 at 1:04pm by Nhlanhla

chemistry
A coin dealer, offered a rare silver coin, suspected that it might be a counterfeit nickel copy. The dealer heated the coin, which weighed 14.0 g to 100C in boiling water and then dropped the hot coin into 29.5 g of water at T = 15.0C in an insulated coffee-cup, and measured...
Tuesday, October 19, 2010 at 1:48am by jake

physic
four moles of gas are contained in 2 litre vessel at the temperature of 200c at a pressure of 10atm.the gas is allowed to expand to anew volume of a 4litres ,but at the same time maintening the original temperature.what is the new pressure?
Friday, April 26, 2013 at 10:57am by Anonymous

chemistry
Heyaa,, I need help to solve this problem!1 Sodium chloride has a giant ionic structure, it has a melting point of 801c. How could you use this information to set up an alarm that sounds when the temperature in a reaction vessel gets above 800c? Thanks x
Thursday, March 24, 2011 at 8:35am by Sharon

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