Wednesday

April 16, 2014

April 16, 2014

Number of results: 73,000

**chemistry**

A sample of neon effuses from a container in 73 seconds. The same amount of an unknown noble gas requires 149 seconds. Identify the gas.
*Thursday, October 16, 2008 at 2:14pm by nikki*

**Chemistry**

A sample of neon effuses from a container in 80 seconds. The same amount of an unknown noble gas requires 163 seconds Identify the gas.
*Saturday, August 10, 2013 at 12:20pm by Anonymous*

**chemistry**

A sample of N2O effuses from a container in 45 seconds. How long would it take the same amount of gaseous I2 to effuse from the same container under identical conditions?
*Thursday, October 16, 2008 at 4:10pm by nicole*

**Kinetic Molecular Theory**

A sample of N2O effuses from a container in 48 seconds. How long would it take the same amount of gaseous I2 to effuse from the same container under identical conditions?
*Sunday, October 25, 2009 at 1:26pm by Kyle*

**chemistry**

a sample containing 1.50 mol neon gas has a volume of 8.00L.what is the new volume of the gas in liters when the following changes occur in the quantity of the gas at constant pressure and temperature? a.a leak allows on-half of the neon atoms to escape. b. a sample of 25.0g ...
*Sunday, June 27, 2010 at 12:49am by Jetta*

**Chemistry**

Consider a sample of helium and a sample of neon, both at 30ºC and 1.5atm. Both samples have a volume of 5.0 liters. Which statement concerning these samples is not true? a- each weighs the same amount b- each has the same # of atoms of gas c- the density of the neon is ...
*Friday, November 6, 2009 at 4:08pm by John S.*

**Chemistry**

A sample of unknown gas effuses in 10.6 min. An equal volume of H2 in the same apparatus under the same conditions effuses in 2.42 min. What is the molar mass of the unknown gas?
*Thursday, October 7, 2010 at 9:13pm by Missy**

**Chemistry**

A sample of an unknown gas effuses in 11.1 min. An equal volume of H2 in the same apparatus at the same temperature and pressure effuses in 2.02 min. What is the molar mass of the unknown gas?
*Monday, October 18, 2010 at 5:38pm by Ashley*

**Chemistry**

A sample of an unknown gas effuses in 11.1 min. An equal volume of H2 in the same apparatus at the same temperature and pressure effuses in 2.02 min. What is the molar mass of the unknown gas?
*Monday, October 18, 2010 at 8:09pm by Ashley*

**chemistry**

A sample of an unknown gas effuses in 11.5 min. An equal volume of H2 in the same apparatus at the same temperature and pressure effuses in 2.77 min. What is the molar mass of the unknown gas?
*Monday, November 1, 2010 at 3:55pm by jacob*

**Chemistry**

Consider a sample of helium and a sample of neon, both at 30ºC and 1.5atm. Both samples have a volume of 5.0 liters. Which statement concerning these samples is not true? a- each weighs the same amount b- each has the same # of atoms of gas c- the density of the neon is ...
*Friday, November 6, 2009 at 4:36pm by John S.*

**chemistry**

Solid white P melts then vaporizes at high temperatures. Gaseous white P effuses at a rate that is 0.404 times that of neon in the same apparatus under the same conditions. How many atoms are in a molecule of gaseous white phosphorus?
*Wednesday, February 20, 2013 at 10:42am by sally*

**chemisrty**

Q2) If 0.327 moles of H2S effuses in 462 seconds, how many seconds would it take for the same number of moles of CH3Cl to effuse?
*Monday, January 16, 2012 at 4:45pm by lyan*

**Chemistry**

Ideal gas law question A 4.0 liter container has two gases inside, neon and argon. It is known that at 18 °C, the total pressure of the combined gases is 0.850 atm. If it is known that there are 0.100 moles of neon in the container, how many moles of argon are in the container...
*Monday, April 25, 2011 at 2:49pm by Thao*

**chemistry**

A 0.10-mol sample of H2(g) and a 0.10-mol sample of Br2(g) are placed in a 2.0-L container. The reaction H2(g) + Br2(g) <----> 2 HBr(g) is then allowed to come to equilibrium. A 0.20 mol sample of HBr is placed into a second 2.0-L sealed container at the same temperature...
*Monday, February 11, 2013 at 2:35pm by Adam*

**Chemistry**

Effusion/Diffusion Chemistry Help!! If 0.0129 mol of dinitrogen tetroxide effuses through a pinhole in a certain amount of time, how much NO would effuse in that same amount of time under the same conditions? (0.0226)
*Wednesday, June 17, 2009 at 9:47pm by Capacino*

**Chemistry**

a sample of hydrogen effuses through a porous container about 9 times faster than an unknown gas. Estimate the molar mass of the unknown gas.
*Tuesday, January 22, 2013 at 6:12am by Anonymous*

**Chemistry**

a sample of hydrogen effuses through a porous container about 9 times faster than an unknown gas. Estimate the molar mass of the unknown gas.
*Tuesday, January 22, 2013 at 6:13am by Anonymous*

**Science-Chemistry**

1.)A sample of oxygen took 55 seconds to travel a certain distance. How long would it take for the same number of moles of nitrogen to travel the same distance. 2.) A sample of hydrogen gas traveled 45m in a given amount of time. An unknown gas traveled 7.6m in the same amount...
*Sunday, April 29, 2012 at 3:36pm by Bryan*

**Chem!**

10 grams of argon and 20.0 g of the neon are placed in a 1200.0 ml container at 25 degrees C. The partial pressure of neon is?
*Thursday, June 28, 2012 at 5:08pm by Harlem*

**math problem**

Two large containers each contain the same amount of juice. When 54oz. of the first container are poured into the second container, the second container has 4 times as much juice as the first container. How many ounces of juice did the first container originally have?
*Saturday, October 27, 2012 at 2:23pm by Bob*

**Chemistry**

A sample of hydrogen (2.02 g/mol) effuses through a porous container about 8.85 times faster than an unknown gas. Estimate the molar mass of the unknown gas. Answer in units of g/mol
*Tuesday, November 20, 2012 at 6:58pm by Caitlin*

**chemistry**

Three gases (8.00 of methane, , 18.0 of ethane, , and an unknown amount of propane, ) were added to the same 10.0- container. At 23.0 , the total pressure in the container is 3.50 . Calculate the partial pressure of each gas in the container.
*Wednesday, May 5, 2010 at 5:23am by emmanuel*

**Chemistry**

Three gases (8.00 of methane, , 18.0 of ethane, , and an unknown amount of propane, ) were added to the same 10.0- container. At 23.0 , the total pressure in the container is 3.90 . Calculate the partial pressure of each gas in the container.
*Monday, August 2, 2010 at 11:36am by Stephen*

**chemistry**

Three gases (8.00 of methane, 18.0 of ethane, and an unknown amount of propane, were added to the same 10.0-L container. At 23.0 C , the total pressure in the container is 3.60 atm. Calculate the partial pressure of each gas in the container.
*Saturday, November 20, 2010 at 7:52pm by Jamie*

**physics**

A sealed container contains 1 mole of neon gas at STP. Estimate the number of neon atoms having speeds in the range from 200 m/s to 202 m/s. (Hint: Assume the probability of neon atoms having speeds between 200 m/s and 202 m/s is constant).
*Tuesday, April 17, 2012 at 10:47pm by zuhra*

**physics**

A sealed container contains 1 mole of neon gas at STP. Estimate the number of neon atoms having speeds in the range from 200 m/s to 202 m/s. (Hint: Assume the probability of neon atoms having speeds between 200 m/s and 202 m/s is constant).
*Wednesday, April 18, 2012 at 2:38pm by zuhra*

**AP Chemistry**

I think this is a units issue, i keep getting the wrong answer. the formula should be rate1/rate2= (molar mas 2/ molar mass1)^1/2 but every time i do it, i get it wrong, and when i do rate1/rate2= (molar mas 1/ molar mass2)^1/2, i get the right answer. It takes 140 SECONDS for...
*Sunday, October 5, 2008 at 5:13pm by Emily*

**Chemistry**

If the sign contains neon at a pressure of 1.72 torr at 32 C, how many grams of neon are in the sign? (The volume of a cylinder is pie r2 h.)
*Saturday, December 1, 2012 at 3:06pm by Sam*

**Physical Science 9**

when exposed to the same amount of heat for the same amount of time, a 3 g sample of copper will experience a greater temperature change then a 12 g sample of copper due to its smaller what?
*Sunday, March 16, 2014 at 2:45pm by Steve*

**Chemistry**

Three gases (8.00 of methane,CH4 , 18.0 of ethane,C2H6 , and an unknown amount of propane,C3H8 ) were added to the same 10.0-L container. At 23.0 degress celsius , the total pressure in the container is 3.90 atm. Calculate the partial pressure of each gas in the container.
*Tuesday, September 23, 2008 at 1:28am by Sarah*

**Chemistry / Gas Law**

350.0 mg of an unknown gas effuses through a small hole into a 2.00 L flask. It effuses at a rate 1.27 times faster than sulfur dioxide at the same temperature, 20.0 degree C. What pressure would it exert in the 2.00 L flask?
*Thursday, March 8, 2012 at 7:41pm by Mae*

**UT**

At STP a sample of neon gas occupies 502 cm3. How many moles of neon gas does this represent? answer in mols
*Wednesday, November 7, 2012 at 11:46pm by Stephanie*

**Chemistry**

Samples of Neon and helium are placed in separate containers connected by a pinched rubber tube. There is 5.00 liters of neon at a pressure of 634 mm Hg in the first container. The second container has 3.00 liters of helium at 522 mm Hg. When the clamp is removed from the ...
*Friday, February 18, 2011 at 6:41pm by T*

**tech III math ( ACT Prep)**

A neon sign flashes every 4 seconds, another neon sign flashes every 6 seconds. If they flash together,how manyseconds later will they flash together again?
*Monday, June 3, 2013 at 12:46am by Jennifer *

**chemistry**

if a 3.72 gram sample of nitrogen occupies a 2.50 liter container at 1.08 atm, what is the temperature in Celcius?
*Thursday, January 24, 2013 at 5:03pm by jessica*

**statistics**

A random sample of 36 statistics students were asked to add a column of numbers. The amount of time required to compute the sum was recorded for each student. The sample mean time was 54 seconds with a sample standard deviation of 18 seconds. 1. Construct a 95% confidence ...
*Thursday, March 22, 2012 at 1:09pm by Maggi*

**Chemistry**

I am not quite sure how to do this problem, it doesn't seem to fit into any of my given equations: A gas has a volume of 35.5L and a pressure of 765mmHg at standard temperature. If the same sample is placed in a 56.0L container and the pressure is measured at 0.92atm, ...
*Monday, May 4, 2009 at 5:09pm by Nick*

**chem**

At what temperature will a 1.0 g sample of neon gas exert a pressure of 500 torr in a 5.0 L container ? or At what temperature will a 0.0470 mol of a gas fill a balloon to 1.20 L under 0.988 atm pressure ?
*Monday, May 14, 2012 at 9:47pm by katie *

**Science**

Container A and B both container the same kind of liquid. Container A has a volume of 5 mL and Container B has a volume of 8 mL. Which container, if either has the highest density? Explain your Answer.
*Monday, September 3, 2012 at 3:16pm by Rachel*

**chemistry**

Because the spectrum of Na is not the same as neon (or whatever gas in inside the street lamp--it probably isn't neon.)
*Wednesday, February 29, 2012 at 8:40pm by DrBob222*

**Math**

The Restaurant's two neon signs are turned on at the same time. Both signs blink as they are turned on. One sign blinks every 9 seconds. The other sign blinks every 15 seconds. In how many seconds will they blink together again ?
*Tuesday, September 18, 2012 at 7:21pm by Gracie*

**Honors Geometry**

A cylindrical container weighs 36 ounces. Another container made out of the same material is similar to the first container with a height that is three-fourths the height of the first container. To the nearest tenth of an ounce, how much does the second container weigh?
*Friday, May 2, 2008 at 12:01pm by Confused.*

**math**

one container has 38 gal in it, it fills at 5 gph . the other container has 30 gal in it, it is filling at 7 gph. when will they have the same amount of water in each?
*Wednesday, March 26, 2014 at 5:41pm by me*

**Chemistry**

A chemist heated a sample of steel wool in a burner flame exposed to oxygen in the air. He also heated a sample of steel wool in a container of nearly 100% oxygen. The steel wool sample in the container reacted faster than the other sample explain why
*Wednesday, March 17, 2010 at 9:13pm by Anonymous*

**chemistry**

I need help setting up this problem: A 5.0 sample of O2 is in a container at STP. What volume is the container and how many molecules of O2 in the container and how many atoms of oxygen?
*Monday, November 9, 2009 at 1:58pm by alexis*

**Physics**

Two ideal gases have the same mass density and the same absolute pressure. One of the gases is helium (He), and its temperature is 298 K. The other gas is neon (Ne). What is the temperature of the neon?
*Monday, December 3, 2012 at 6:19am by Frustrated*

**Neon**

lit signs without neon.... there wouldn't be none. (the only slogan i can think of for neon)
*Monday, October 16, 2006 at 8:50pm by Jecika*

**Neon**

Here's a slogan for neon:Put up the neon sign if u want your business to shine!
*Monday, October 16, 2006 at 8:50pm by Random*

**Neon**

a good neon slogan is....... light up the night and make it bright with neon!
*Monday, October 16, 2006 at 8:50pm by lalalalala*

**math**

x = The number of sweets in container x y = The number of sweets in Container y x = 24 + y OR y = x - 24 When you removed 42 sweets from container x then numers of sweets in container x became: x - 42 Numbers of sweets in container y became: y + 42 = thrice of ( x - 42 ) = 3...
*Monday, February 13, 2012 at 6:20am by Bosnian*

**Chemistry**

A 1.56L sample of Neon gas at STP is heated to 100C, what is the final pressure assuming the volume stays the same?
*Monday, April 25, 2011 at 7:17pm by Terrie*

**Chemistry**

A 1.00-kg sample of Sb2S3(s) and a 10.0-g sample of H2(g) are allowed to react in a 25.0-L container at 713 K. At equilibrium, 72.6 g H2S(g) is present. What is the value of Kp at 713 K for this reaction? Sb2S3(s) + 3 H2(g) <----> 2Sb(s) + 3 H2S(g)
*Wednesday, October 27, 2010 at 3:23pm by Shanice*

**CRC**

A sample of ideal gas is in a sealed container. The pressure of the gas is 675torr , and the temperature is 28\, ^{\circ}C . If the temperature changes to 91\, ^{\circ}C with no change in volume or amount of gas, what is the new pressure, P_2, of the gas inside the container?
*Sunday, April 28, 2013 at 2:42pm by Touch*

**algebra 1A **

at the local per store, zebra fish cost $2.10 each and neon tetras cost $1.80 each. if marsha bought 13 fish for a total of $25.80, not including tax, how many of each type of fish did she buy? a)7 zebra, 6 neon b)8 zebra, 5 neon c)6 zebra, 7 neon d)5 zebra, 8 neon
*Monday, May 14, 2012 at 12:17am by loraine*

**chem please help!**

lighter molecules effuse faster. Graham's law: Rate of effusion is inverely proportional to the square root of molecular mass. So neon effuses faster. Go to the head of your class. how much faster: rateneon=rateKr*sqrt(83.7/20.1) or about twice as fast.
*Tuesday, January 8, 2013 at 8:39pm by bobpursley*

**math**

container A has twice the capicity of container B. container A is full of sand and container B is empty. suppose 1/8 of the sand in container A is poured into container B. what fractional part of container B will conatin sand.........please halpme i am confused
*Monday, March 22, 2010 at 5:15pm by Katherine*

**math**

container A has twice the capicity of container B. container A is full of sand and container B is empty. suppose 1/8 of the sand in container A is poured into container B. what fractional part of container B will conatin sand.........please halpme i am confused
*Monday, March 22, 2010 at 6:02pm by Katherine*

**math**

container A has twice the capicity of container B. container A is full of sand and container B is empty. suppose 1/8 of the sand in container A is poured into container B. what fractional part of container B will conatin sand.........please halpme i am confused
*Monday, March 22, 2010 at 6:29pm by Katherine*

**chemistry**

a 0.25 mol sample af neon gas at 18 C and 0.700 atm is heated to 40 C. the new gas pressure is 1.11 atm. what is the change in volumn of the neon gas?
*Monday, February 4, 2013 at 4:38pm by james*

**math **

container A has twice the capacity of container B. Container A is full of sand and container B is empty. Suppose 1/8 of the sand in container A is poured into Container B. What fractional part of container B will contain sand?
*Thursday, September 27, 2012 at 10:30pm by israel*

**Chemistry 1151**

How many oles of Neon are in a 25mL container at STP?
*Wednesday, October 6, 2010 at 1:09pm by Sydney*

**Chemistry**

A sample of gas is in a 50.0mL container at a pressure of 86 kPa and a temperature of 25°C. The entire sample is heated to a temperature of 35°C and transferred to a new container whose volume is 65.0mL. The pressure of the gas in the second container is: 64 kPa 115.6 kPa 101....
*Thursday, May 5, 2011 at 3:48am by Bai*

**College Chemistry**

Plaster of Paris is the compound calcium sulfate hemihydrate, CaSO4*1/2H2O What mass of water is liberated when a 2.763 gram sample is heated to constant mass? The sample is 2.763 grams How much of the 2.763 gram sample is water? I need an amount in grams. Amount of anhyrdate...
*Saturday, October 8, 2011 at 9:01am by Roy*

**Algebra**

Use this proportionality: A correlation V square 2/3 How much more material is needed to manufacture an industrial plastic container with twice the volume of a similar container? A manufacturer of plastic containers prices its product by the amount of plastic used to make the ...
*Saturday, November 26, 2011 at 5:04pm by John*

**algebra**

Well, the light is green for a total of 72 seconds. There are 120 seconds in one complete cycle. You want to know the probability that it will be green, so you take the number of green seconds divided by the total number of seconds. 72/120= 3/5 the probability is 3/5
*Wednesday, June 2, 2010 at 5:27pm by Heather*

**chem urgent!!**

At a temperature of 35 °C, fluorine gas effuses through a pinhole at a rate of 8.7 L s−1. What is the speed of the fluorine as it effuses through the pinhole? i no u use the eq. 3rt/M ^.5 but i get 20 for the answer but it is really 450.
*Wednesday, June 11, 2008 at 5:06am by sam*

**math word problems**

Container A has twice the capacity of container B. Container A is full of sand and container B is empty. Suppose 1/8 of the sand in container B will contain A is poured into container B. What fractional part of container B will contain sand?
*Saturday, September 8, 2012 at 3:52pm by cristina*

**Quemistry**

L has twice the volume of container J. Container J is at a temperature of 100 K, and container L is at 200 K. How does the pressure in container J compare with that in container L
*Sunday, June 24, 2012 at 11:01am by JJ*

**chemistry**

covalent, ionic, and for neon, no known compounds have neon in them. There are the ions of neon, such as Ne+, (NeAr)+, (NeH)+, and (HeNe+) have been observed, but they do not occur naturally
*Sunday, September 30, 2012 at 8:27pm by bobpursley*

**Calculus AP**

Can someone help me step by step how to find the answer to this problem. The amount of air in a balloon at time t is given by the equation a(t)=3tsint+t^2 where t is measured in seconds and the amount of air is measured in cubic centimeters. a. what is the amount of air in the...
*Friday, October 23, 2009 at 12:37am by David.*

**Science**

Would you normally expect neon (Ne) to form compounds? A. Yes, but neon is a rare gas and difficult to obtain. B. No, neon needs six electrons to fill its outermost level. C. Yes, neon needs six electrons to fill its outermost level. D. No, neon has eight electrons in its ...
*Monday, October 10, 2011 at 12:24pm by Anonymous*

**4th grade math**

there are 60 second in 1 minutes. so, multiply 3 and 24 =72. so add 72+24=96 seconds. your answer is 96 seconds.
*Tuesday, March 10, 2009 at 10:36pm by Aileen*

**Chem hw!**

1. What pressure would be needed to compress 25.1 mL of hydrogen at 1.01 atm to 25% of its original volume? 2. If the pressure on a 1.04-L sample of gas is doubled at constant temperature, what will be the new volume of the gas? 3. A 1.04-L sample of gas at 759 mm Hg pressure ...
*Thursday, March 11, 2010 at 12:18am by Teisha*

**Chem hw!**

1. What pressure would be needed to compress 25.1 mL of hydrogen at 1.01 atm to 25% of its original volume? 2. If the pressure on a 1.04-L sample of gas is doubled at constant temperature, what will be the new volume of the gas? 3. A 1.04-L sample of gas at 759 mm Hg pressure ...
*Thursday, March 11, 2010 at 12:18am by Teisha*

**Chemistry**

The temperature of a sample of neon is raised from 20 degrees C to 40 degrees C, the average kinetic energy of the neon atoms changes by a factor of? The answer is suppose to be 313/293, but I don't get how. My idea was since average KE = (3/2) kT then the KE would only change...
*Wednesday, January 7, 2009 at 1:34am by Unsure*

**Algebra**

The total amount of water in 2 containers is 35quarts. If 7 quarts gets poured from the container with less water into the continer with more water, the container with more water will have 4times as much water as the other container. How many quarts are in the container with ...
*Saturday, October 13, 2012 at 12:25pm by Josie*

**Chemistry**

It takes 200. seconds for a sample of carbon dioxide to effuse through a porous plug and 280. seconds for the same volume of an unknown gas to effuse under the same conditions. What is the molar mass of the unknown gas? Enter your answer to 3 significant figures.
*Monday, February 18, 2013 at 11:56am by Olivia*

**chem**

takes 190. seconds for a sample of carbon dioxide to effuse through a porous plug and 295 seconds for the same volume of an unknown gas to effuse under the same conditions. What is the molar mass of the unknown gas? Enter your answer to 3 significant figures.
*Monday, April 29, 2013 at 9:50pm by sarah*

**chemistry**

If 0.45 mol of neon gas occupies a volume of 789 mL at a certain temperature and pressure, what volume would 0.376 mols of neon occupy under the same conditions? what Law is used to solve?
*Wednesday, April 18, 2012 at 11:13am by Anonymous*

**cleveland state university**

A sample of gas at 1.3 atm of pressure is in a 2.0 L container. What will the pressure be if the sample is transferred to a 0.90 L container? 1. 0.59 atm 2. 1.4 atm 3. 2.9 atm 4. 3.2 atm
*Monday, November 21, 2011 at 12:34pm by Danielle*

**sciencee**

1. What pressure would be needed to compress 25.1 mL of hydrogen at 1.01 atm to 25% of its original volume? 2. If the pressure on a 1.04-L sample of gas is doubled at constant temperature, what will be the new volume of the gas? 3. A 1.04-L sample of gas at 759 mm Hg pressure ...
*Tuesday, March 9, 2010 at 10:33pm by Teisha*

**morrisville**

Problem 3: Baggage Name your source code file Bags.py. You will write a program that simulates the actions of luggage handling for a large aircraft. As bags arrive they are loaded into containers. Each bag has a different weight and each container can hold a maximum amount of ...
*Thursday, February 14, 2013 at 7:33pm by ama*

**gas laws chemistry**

A neon sign is made of glass tubing with an inside diameter of 12.7 mm and length of 16.0 m. If the sign contains neon at a pressure of 7.56 torr at 33°C, how much neon is in the sign?
*Saturday, March 17, 2012 at 3:53pm by harley*

**college**

Please explain with complete step by step instructions. #8)One type of lawn fertilizer consists of a mixture of nitrogen, phosphorus and potassium. An 80lb sample contains 8 move lbs of nitrogen and phosphorus than potassium. There is 16lb more potasssium than 5 times the ...
*Tuesday, November 23, 2010 at 2:19am by Lee*

**math**

The number of sweets in Container X was 24 more than Container Y. When I removed 42 sweets from Container X and transfered then in Container Y,the number of sweets in Container Y became thrice of Container X. Find the number of sweets in Container X first.
*Monday, February 13, 2012 at 6:20am by Kieron*

**college Algebra**

Please explain with complete step by step instructions. #8)One type of lawn fertilizer consists of a mixture of nitrogen, phosphorus and potassium. An 80lb sample contains 8 move lbs of nitrogen and phosphorus than potassium. There is 16lb more potasssium than 5 times the ...
*Monday, November 22, 2010 at 5:41pm by Lee*

**chemistry**

A sample of neon gas used in a neon sign occupies a volume of 3.90 L at a pressure of 580 torr. Calculate the volume of the gas if the pressure in the glass tube of the sign is 783 torr.
*Tuesday, April 24, 2012 at 11:56am by Anonymous*

**Chemistry. can jus anyone giv me ther opinion.**

Eva has two containers labeled A and B. The diameter of container A is 8 inches and the diameter of container B is 12 inches. If Eva pours the water from container A into container B, which will occur...
*Friday, September 17, 2010 at 12:16pm by Jason*

**college**

If the same amount of heat is supplied to sample of 10.0g each aluminum, iron,and copper all at 15 degrees celsius which sample would reach the highest temperature????
*Saturday, September 4, 2010 at 1:16am by amy*

**math**

a) Find the volume of the first cylinder using V=pi(h)(r)^2 and then multiply that by .75. This is the volume of the juice. Then, you divide that amount by the volume of the second container. b) Divide the amount of the juice by .27 to get the volume of the new container and ...
*Thursday, February 25, 2010 at 7:21pm by Kristen*

**chem-acid-base titrations**

Assume that your vinegar contained a small amount of citric acid (a triprotic acid). Using the same experimental data, would you expect the molarity of this sample to be the same as or different than a sample which contained only pure acetic acid?
*Monday, April 21, 2008 at 10:06pm by Mo*

**CHEM**

A) a picture shows a container that is sealed at the top by a movable piston. Inside the container is a ideal gas at 1.00atm , 20.0 *C, and 1.00L. (The pic is of a 2L container which has a piston pushed downward to the 1L level. Under the piston, under the 1L mark, is a sample...
*Sunday, October 28, 2007 at 8:57pm by K*

**Chemistry**

Need help in AP chemistry on Equilibrium When heated, hydrogen sulfide gas decomposes according to the equation 2 H2S(g) ⇄ 2 H2(g) + S2(g) A 3.40 g sample of H2S(g) is introduced into an evacuated rigid 1.25 L container. The sealed container is heated to 483 K, and 3.72 ...
*Monday, April 9, 2012 at 8:58pm by Sam*

**Chemistryy.**

Some mole problems! Which quantity of neon may be represented by the symbol Ne? A) 1 gram B) 4 liters C) 6 x 1023 atoms D) 2 moles A sample of nitrogen containing 1.5 x 1023 molecules has the same number of molecules as a sample containing A) 1.0 mole of H2 B) 0.25 mole of O2 ...
*Monday, June 6, 2011 at 9:17pm by Jenny*

**in chem**

calculate the mass of this sample: 1.05 * 10 to the power of 26 atoms of neon, Ne(g) I know that I have to first divide by the avagadros constant, then once get the moles I need to multiply by the molar mass of neon to get the grams, I did that sevral times but I keep on ...
*Monday, December 24, 2012 at 4:38pm by Help*

**chemistry**

I assume you have a sequence of measurements of mols/grams/amount vs time in seconds. amount at start - amount at 1 sec = amount consumed. This answer is general I know but so is your question with no data.
*Saturday, February 1, 2014 at 10:40pm by DrBob222*

**chem please help!**

Krypton gas is four times denser than neon gas at the same temperature and pressure. Which gas is predicted to effuse faster? i got neon which is correct but How much faster? how many times? i dont know how to get htis
*Tuesday, January 8, 2013 at 8:39pm by Samantha*

**physics**

2.9 seconds. Same amount of gravity.
*Monday, September 12, 2011 at 6:03pm by Steph*

**Neon**

I need to find out the cost of the inert gas, Neon and it's Normal Phase to finish off a project. I have searched and searched but can't come up with the info needed. Neon is a rare gas, obtained by liquifing air. Its cost for very pure form is about thirty dollars per ten ...
*Monday, October 16, 2006 at 8:50pm by Holly*

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