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April 16, 2014

Search: If 1.25 grams of water is enclosed in a 1.5 L container, will any liquid be present? If so, what mass of liquid

Number of results: 66,579

Chemistry
The heat capacity of liquid water is 4.18 J/gC and the heat of vaporization is 40.7 kJ/mol. How many kilojoules of heat must be provided to convert 1.00 g of liquid water at 67C into 1.00 g of steam at 100C? A. 22.7 kJ B. 40.8 kJ C. 2.2 kJ D. 2,400 J E...
Thursday, February 3, 2011 at 8:01am by Dorian

Chemistry
An empty beaker weighs 42.75 grams. When completely filled with water, the beaker and its contents have a total mass of 399.95 grams. What volume does the beaker hold Use d=1.00 g/ml as the density of water.
Saturday, September 8, 2012 at 6:39pm by Elizabeth Morgan

chemistry
A 10.0 grams piece of gold 90.0 Celsius was stirred into 15.0ml of water at an initial temperature of 25.0 degrees Celsius. The final temperature of the water was 26.34 degrees celsius. Calculate the specific heat of gold. The specific heat of water is 4.184 J/g- degrees celsius
Thursday, October 20, 2011 at 10:53pm by casey

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

Physics
it is colder than liquid water, so the water on the tounge freezes. Dont like the goalposts on the football field in freezing weather either.
Sunday, December 1, 2013 at 7:52pm by bobpursley

Physics
Dumping sealed containers from ship decks that are 2 meters above the water surface. With a final depth of 100 meters. Find the final velocity of the container on impact. 1. Container in the shape of right circular cylinders, containers of .5 meters diameter and 1.0 meter ...
Sunday, October 31, 2010 at 10:36am by Christopher

Chemistry
Consider the following equation: 4NH3(g) + 5O2(g)----> 4NO(g)+6H2O(g) a. How many liters of oxygen are required to react with 2.5 L NH3? Both gases are at STP b. How many grams of water vapor can be produced from 25 L NH3 if both gases are at STP? c. How many liters of NO ...
Monday, November 29, 2010 at 8:42pm by Ivy

Chemistry
65 ppm is 65 grams/10^6 g sea water. We want 1 lb of Br2 which is about 454 grams. So how much sea water do we need to do that? That's 1E6 g sea water x (454/65) = about 7E6 grams. I would change that to 7E3 kg and use the density. volume = mass/density = 7E3/1E3 = aboaut 7 ...
Wednesday, September 19, 2012 at 10:54pm by DrBob222

Calc
A a conical container of radius 5ft and height 20ft is filled to a height of 18ft of a liquid weighing 50.6lb/ft^3. How much work will it take to pump the contents to the rim? How much work will it take to pump the liquid of a level of 2ft above the rim? So I got integral (50....
Sunday, February 10, 2013 at 10:54pm by Anonymous

chemistry
Bill finds an unusual object and wishes to calculate it's density. He discovers a problem of accurately weighing it, because it won't stay on the weighing pan. To solve this he adds the object to a beaker containing 161 mL of distilled water and finds the water level rises to ...
Monday, September 7, 2009 at 8:29pm by Sam

math
the base of a cylindrical juice container is a circle with diameter 20 cm. The height of the container is 80cm. What is the capacity of the juice container? Pi * r^2 * h = V 3.14 * 10^2 * 80 = ?? For the second part, take 90% of the above answer.
Monday, November 10, 2008 at 10:03pm by Ms. Sue

Chemistry
0.5 ppm = 0.5 g Cl2 in 1,000,000 g solution. The density of water is essentially 1 g/mL and the mass of Cl2 is so small that 1 million grams of water + small amount Cl2 = 1 million grams solution or 1 million mL. So we can think in terms of 0.5 g Cl2/10^6 mL water. Convert ...
Sunday, February 21, 2010 at 3:37pm by DrBob222

Chemistry Electrolytes
What is the total number of ions formed when 2.00 grams of calcium chloride are dissolved in 100 grams of water. (Ignore any ions formed by the water). Note, this is a bit of a trick question. Read the problem carefully.
Monday, June 1, 2009 at 6:54pm by Gweedo8

Physics
How many grams of ice must be added to 100 grams of water at 60 degrees so that its temperature drops to 20 degrees celcius? As far as i know I have to use: (Mass)*(specific heat of water) *(finaltemperature - initial temperature = ??
Thursday, January 7, 2010 at 10:36am by Jose

8th grade
.25(x)+.50(1000-x)=.45(1000) where x is the number of grams of 25% copper and 1000-x is the rest of the 1000 grams i.e. the number of grams of 50%
Thursday, December 9, 2010 at 8:39pm by TutorCat

chemistry
You want how many moles of CuSO4? M x L = moles = 2.000 x 0.250 L = ?? How many grams CuSO4 is that? moles = grams/molar mass and solve for grams CuSO4 = xx grams CuSO4. BUT you don't have CuSO4. You have CuSO4.5H2O so convert xx g CuSO4 to zz grams CuSO4.5H2O. That will be ...
Sunday, December 5, 2010 at 9:09pm by DrBob222

Chemistry
I think the problem is asking for a detailed explanation of how to prepare 1 L of the soln including calculations. You want a 4.73E-4M soln which means you want 4.73E-4 moles/L soln. So you weigh the number of grams to obtain 4.73E-4 moles (moles = grams/molar mass), place ...
Wednesday, October 12, 2011 at 7:50pm by DrBob222

Science-Chemistry
1)Fill in the blanks. In a liquid, particles are _____arranged. They move about in ____ directions and slide over one another. Can I say "irregularly" & "any" as the answers? I know "random directions" is better, but can we accept "any directions"? 2) When water at 30˚C is ...
Monday, January 26, 2009 at 8:02pm by anne

Chemistry
A certain compound contains carbon, hydrogen , and oxygen. When 1.00 grams of this compound are burned in oxygen gas 1.47 grams of CO2 and 0.600 grams of water are formed. When 2.75 grams of the compound are dissolved in 10.0 grams of water the resulting solution freezes at 2...
Sunday, January 16, 2011 at 9:50am by Patrick

Chemistry
A certain compound contains carbon, hydrogen , and oxygen. When 1.00 grams of this compound are burned in oxygen gas 1.47 grams of CO2 and 0.600 grams of water are formed. When 2.75 grams of the compound are dissolved in 10.0 grams of water the resulting solution freezes at 2...
Sunday, January 16, 2011 at 4:16pm by Patrick

Algebra II
#2 of 3 The original 14 gallons is 1/4 water, so it contains 3.5 gallons of water. When you are done removing and replacing x gallons of the mix with water, you still have 14 gallons, but it is 40% water, so that makes 5.6 gallons of water in the radiator afterwards. The ...
Friday, January 11, 2008 at 3:14am by drwls

chemistry
PV=nRT YOu know P, V,R, T solve for n. then, grams water=n*molmass water and finally, ml of water=gramswater*1ml/1gram
Tuesday, September 6, 2011 at 12:06pm by bobpursley

chemistry
how many grams of propane are in a 35L container at 40 degrees and 900 torr?
Sunday, February 14, 2010 at 7:35pm by Bob

chemistry
how many grams of propane are in a 35L container at 40 degrees and 900 torr?
Sunday, February 14, 2010 at 7:43pm by Bob

Chemistry
If the solubility of arsenic trioxide in water at 25 C is 20g/1L water, would 250mL of water at 25 C containing 3.5g of arsenic trioxide be saturated, unsaturated, or supersaturated?
Wednesday, April 27, 2011 at 12:15am by Sarab

physics
A beam of light is incident from air on the surface of a liquid. If the angle of incidence is 25.0 and the angle of refraction is 14.0, find the critical angle for the liquid when surrounded by air. im not sure how to start this problem.
Thursday, April 7, 2011 at 5:01pm by julie

Chemistry
Thallium (I) iodate is only slightly soluble in water. Its Ksp at 25C 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 ...
Wednesday, May 2, 2007 at 1:52pm by Jason

science, pls explain this!
A chemical change has occurred The products are not water anymore but two different entities. If it were a physical change (ice (solid H2O) to liquid water to steam(water vapor) you have H2O in all three phase so the water has not been broken down to different substances as in...
Wednesday, March 12, 2014 at 8:28pm by DrBob222

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

CHEMISTRY
Water has a van der Waals constants of a = 5.464 Latm/mol2 and b = 0.03049 L/mol. What is the pressure of 5.20 moles of water vapor in a 1.10 L container at 100.0C? I Dont understand this problem!
Sunday, May 10, 2009 at 6:58pm by Kerrie

AP Physics
A cylindrical container of radius 20 cm contains water of height of 3 m. Two meters down from the water level there is a hole of 0.5 cm in radius. Find the velocity and volume flow rate of water leaving the hole. Where does it strike the ground?
Monday, November 29, 2010 at 5:06pm by Charlie

Differential Equations
Write an equation (based on Bernoulli's equation) for the volume flow rate in terms of the height of the water in the tank, which is proportional to pressure. That height y will be a function of the remaining volume, V. Derive the equation dV/dt = f{y(V)} where y is the height...
Tuesday, August 31, 2010 at 5:04pm by drwls

Chemistry 101 Electrolytes
What is the total number of ions formed when 2.00 grams of calcium chloride are dissolved in 100 grams of water. (Ignore any ions formed by the water). Note, this is a bit of a trick question. Read the problem carefully.
Monday, June 1, 2009 at 5:22pm by Gweedo8

Chemistry
Can someone check my answers for me thank you. This is my 3rd time posting this one up...maybe its just not going through bc I don't see it on the current ?s. 4NH3 + 7O2 --> 4NO2 + 6H2O 1)How many grams of oxygen are necessary to produce 4.50 moles of NO2? answer: 252 grams...
Wednesday, January 9, 2008 at 8:37pm by Mike

physics
Three liquids that will not mix are poured into a cylindrical container. The volumes and densities of the liquids are 0.35 L, 2.6 g/cm3; 0.25 L, 1.0 g/cm3; and 0.40 L, 0.60 g/cm3. What is the force on the bottom of the container due to these liquids? One liter = 1 L = 1000 cm3...
Friday, January 28, 2011 at 7:33pm by rock

chemistry
Calculate the enthalpy change when 50. g of ice at -30.0 C is heated to completely melt to liquid water at 0.0C. (The heat of fusion for water is 333 J/g.)
Tuesday, October 23, 2007 at 6:07pm by Robert

Science
When 1 gram of liquid water at 0 degrees Celsius freezes to form ice, how many total calories of heat are lost by the water and how do you know? a. 1 b. 0.5 c. 80 d. 540
Monday, June 15, 2009 at 8:57pm by Angie

Science
Water vapor is a transparent gas, you can see right through it. Clouds or fog are tiny droplets of liquid water suspended in the air.
Tuesday, September 13, 2011 at 12:44am by Damon

Science 8R - help
Yes. If you wanted to stick with water -- Liquid comes out of the tap. Solid is formed when water is frozen into ice.
Tuesday, November 13, 2012 at 8:38pm by Ms. Sue

Science
Gel is a semisolid mixture of small particles of a solid in a liquid colloid. SOL is a liquid colloidal solution (e.g:Hydrosol is a colloidal solution in which the particles are suspended in water.
Monday, October 26, 2009 at 8:20am by Elvira

chemistry
sample of liquid water at 100 degrees C absorbs 113 kJ of heat. HOw much water will be converted to steam heat vaporization if water is 2.26 kJ/g I just need help with what formula to set this up
Wednesday, July 20, 2011 at 8:58pm by LG

chemistry
Calculate the Calorimeter Constant if 25 g of water at 58C was added to 25 g of water at 25C with a resulting temperature of 35C?
Monday, March 31, 2008 at 11:02am by bipasha

chemistry
Calculate the Calorimeter Constant if 25 g of water at 51C was added to 25 g of water at 25C with a resulting temperature of 35C?
Friday, October 15, 2010 at 4:33am by Hana

Math
4 oz = 4/16 = 1/4 pound so we have 5.25 pounds when in danger or in doubt, type 5.25 pounds = grams into a Google search window and get 5.25 pounds = 2381.36 grams which is 2.38136 Kilograms NOw I do physics and kilograms is NOT weight for me, it is mass I would say the WEIGHT...
Thursday, January 23, 2014 at 8:52pm by Damon

chemistry
3 M solution means 3 moles solute/L soln. The soln density is 1.25 g/mL; therefore, 1000 mL soln x 1.25 g/L = 1250 grams for the soln. Part of the 1250 g is water, part NaCl. Since it is 3 moles, that is 3 moles x 58.44 g/mol =175.33 g NaCl. Thus the water portion is 1250-175....
Monday, May 10, 2010 at 8:19am by DrBob222

Chemistry
Calculate the number of grams of water produced from 30 g of oxygen gas. List only the number of grams of water. First, you will need to balance the equation above. Round to the nearest hundredth. And, as always, don't forget the units.C6H10+O2---->CO2+H2O
Thursday, August 5, 2010 at 5:23pm by Jarred

chemistry
What will be the final temperature of the water in an insulated container as the result of passing 5.00 g of steam [H2O(g)] at 100.0C into 195.0 g of water at 20.0C? (?Hvap = 40.6 kJ/mol H2O) The best way to do these problems is to make the heat gained + heat lost = 0. q1...
Thursday, October 12, 2006 at 8:35pm by hal

Chemistry
Let's see now. If I had 1 g ice and it melted into water, it would form 1 g water. So grams ice and grams melted ice must be the same. right?
Wednesday, May 11, 2011 at 11:49pm by DrBob222

physics
0.140- cube of ice (frozen water) is floating in glycerine. The gylcerine is in a tall cylinder that has inside radius 3.30 . The level of the glycerine is well below the top of the cylinder.If the ice completely melts, by what distance does the height of liquid in the ...
Wednesday, November 16, 2011 at 2:20am by Armond

Physics
Spent steam from an electric generating plant leaves the turbines at 120.0 degrees Celsius and is cooled to 90.0 degrees Celsuius liquid water by water from a cooling tower in a heat exchanger. How much heat is removed by the cooling tower water for each kilogram of spent ...
Tuesday, November 21, 2006 at 4:37pm by Erica

chemistry
If a student added 42.6 grams of sodium sulfite to 780.4 grams of water and determined that 3.40 grams of the new solution occupied 3.20ml, what is the weight percent, molality, and molarity of the solution produced?
Thursday, July 18, 2013 at 6:34pm by Sumaiyah

Calculus II
Let the center of the tank be at (0,0) when the water level is at y, the radius of the water surface is r^2 = 25-y^2 Work is ∫F(y) dy F(y) is the weight of the water. So, since each slice of water in the tank is raised 21+y feet, and water weighs 62.4 lbs/ft^3, W(y) = &#...
Wednesday, October 10, 2012 at 11:12am by Steve

Science 8R - help
I'm asking is phase of matter is gas, liquid, and solid. MEANING do I have to give an example for EACH. and no I don't have any examples for solid ..... a ball gas.... can't think of anything liquid.... water a bottle?
Tuesday, November 13, 2012 at 8:38pm by Laruen

chemistry
1.2 mol of CH3OH(g) are injected into a 2.0 L container and the following equilibrium becomes established. 2H2(g) + CO(g) <=====> CH3OH(g) + 92 kJ If at equilibrium 1.0 mol of CH3OH is still in the container the Ke must be which of the following? a. 25 d. 12.5 b. 125 e. ...
Friday, March 12, 2010 at 5:16pm by Jess

Chemistry
If 33.6 grams of KCl are dissolved in 192 grams of water, what is the concentration of the solution in percent by mass? AND if 2.1 moles of CaCl2 are dissolved in enough water to make a .92 liter solution what is the resulting molarity? Please help and explain or anything?!
Tuesday, March 27, 2012 at 7:05pm by Dr. David

Calculus
An inverted cone has a diameter of 42 in and a height of 15in. If the water flowing out of the container is 35pi in^3/sec , how fast is the depth of the water dropping when the height is 5in?
Sunday, December 13, 2009 at 10:54pm by Luis

Physics
A 400-g block of copper at a temperature of 85C is dropped into 300 g of water at 33C. The water is contained in a 250-g glass container. What is the final temperature of the mixture?
Tuesday, November 29, 2011 at 7:13pm by Seth

yh8hy
Dear Juan, energy from the sun is important because it heats the water molecules which causes them to evaporate. Evaporation is when the water turns into a gas which is a part of the water cycle. After the gas cools it turns into condensation, or liquid water again. The sun's ...
Thursday, November 8, 2007 at 8:47pm by Mercedes

physics
In Figure 12-68, two identical, uniform, and frictionless spheres, each of mass 4.1 kg, rest in a rigid rectangular container. A line connecting their centers is at 45 to the horizontal. Find the magnitudes of the forces on the spheres from (a) the bottom of the container, (b...
Wednesday, December 29, 2010 at 8:23pm by Sarah

Chemistry
Benzene (C6H6) is an organic compound that boils at 80.1C. If 100.0 grams of liquid benzene at 18.5C is given 16.88 kJ of energy, what is the final temperature (in C) of the benzene? The ΔHvaporization for benzene = 31.0 kJ/mol and the specific heat of liquid benzene...
Friday, April 15, 2011 at 2:55pm by Laura

physics
The water supply of a building is fed through a main entrance pipe 6cm in diameter. A 2cm diameter faucet tap positioned 2m above the main pipe fills a 25 liter container in 30s. (a) What is the speed at which the water leaves the faucet? (b) What is the gauge pressure in the ...
Wednesday, December 19, 2007 at 12:15am by Anonymous

Science
take water for example... when its cold.. water freezes (solid).. then warmer it melts(liquid).. then at 100 degrees c it boils (steam/gas)
Wednesday, January 30, 2008 at 7:36pm by Anna-Marie

Chemistry
how much energy would be required to change 24.7g of ice to liquid water?the heat of fusion for water is 6.01 kj/mol?
Tuesday, January 18, 2011 at 10:49am by Anonymous

chemistry
Water has an equilibrium vapor pressure of 23.8 mm Hg at 25 C. If 1.00 g H2O is sealed in a 20 L flask, what mass will remain in the liquid phase when equilibrium is established? ( 760 mmHg = 1 atm, R =0.0821 L.atm/mol.K)
Saturday, January 22, 2011 at 4:00pm by daniel

chem help asap
1. Place 0.125 moles NaCl (7.305 grams) in a 250 mL volumetric flask, add some water, swirl to dissolve all of the NaCl, then make to the mark with water. You PROBABLY should round the 7.305 g to 7.31 grams.
Thursday, May 28, 2009 at 10:34pm by DrBob222

chemistry
If 100. g of iron at 100.0 C is placed in 200. g of water at 20.0 C in an insulated container, what will the temp, C, of the iron and the water ( C value is 4.18) when both are at the same temp? The specific heat of iron is 0.444 KJ/Kg C ---- steps would be appreciated... ...
Friday, September 15, 2006 at 5:54pm by Lily

Chemistry
A sample of zinc metal reacts completly with an excess of hydrochloric acid: Zn(s) + 2HCl(aq) --> ZnCl2(aq) + H2(g) The hydrogen gas produced is collected over water at 25.0 C. The volume of the gas is 78.0 L & the pressure is 0.980 atm. Calculate the amount of zinc metal ...
Friday, August 12, 2011 at 7:51pm by ChemLover

science
Are there hydgrogen bonds between water molecules in the liquid phase No, and if there were, the water would just be ice (a solid). Yes, and they are continually breaking and reforming. Yes, but they rarely ocuur. No, otherwise the water molecules would not be able to tumble ...
Monday, March 5, 2012 at 6:16pm by Adam

Physics
Which requires more energy: to raise 1 kg of liquid water from 0 to 100 degrees (Celsius) or to turn that water to steam after it hits 100 degrees? Assume the specific heat capacity of water is approximately independent of temperature.
Wednesday, November 28, 2012 at 1:32am by Anon

biology
A slice of pizza has 500 kcal. If we could burn the pizza and use all the heat to warm a 50L container of cold water, what would be the approximate increase in the temperature of the water?
Friday, January 30, 2009 at 11:13am by Jack

biology
A slice of pizza has 500 kcal. If we could burn the pizza and use all the heat to warm a 50-L container of cold water, what would be the approximate increase in the temperature of the water?
Friday, January 30, 2009 at 11:13am by ash

Physics
55) A 200-g block of copper at a temperature of 90 C is dropped into 400g of water at 27 C. The water is contained in a 300-g glass container. What is the final temperature of the mixture?
Tuesday, November 30, 2010 at 8:40am by Y0gi

Chemistry
3. The solubility of BaSO4 at 25C is 9.04 mg/L. Based on this, how many grams and moles of BaSO4 remained dissolved in the 100 mL of solution? What percent of your yield does this represent? 2. The precipitate is washed with warm water not cold, why is this? What might...
Wednesday, October 19, 2011 at 4:45pm by emman

Chemistry
I will save myself a lot of work and let you do most of it but here is how to go about it. First, identify any phase changes (solid to liquid or liquid to gas). q at any phase change = mass x heat vaporization (if vapor to liquid or liquid to vapor) or heat fusion (if liquid ...
Monday, November 21, 2011 at 11:44am by DrBob222

chemistry
125 mL of 25 dergree celsius of distilled water was used to wash and transfer a precipitate. rather than 20 ml of CHILLED distilled water (at 4 degree celcius). the solubility of baruim iodate monohydrate in 25 degree celcius water is 0.028g per 100 ml of water; in 4 degree ...
Monday, March 1, 2010 at 10:03pm by Myaa

physics
A rectangular container measuring 24 cm 48 cm 55 cm is filled with water. What is the mass of this volume of water in kilograms?
Saturday, March 19, 2011 at 5:22pm by Beth

physics
A rectangular container measuring 24 cm 48 cm 55 cm is filled with water. What is the mass of this volume of water in kilograms?
Saturday, March 19, 2011 at 5:22pm by Anonymous

AP CHEM
help please. i don't even know where to start 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 15?C. When the container is evacuated and refilled with a ...
Wednesday, January 23, 2008 at 4:12pm by Nikki

chem
If 25 grams of solid ice at-20 degrees C is heated to gaseous water at 125 degrees C, how much energy is required?
Sunday, April 13, 2008 at 5:50pm by joe

Algebra
To reduce 32 grams of a 25% solution of antiseptic to a 10% solution, how much distilled water should a pharmacist add?
Tuesday, March 2, 2010 at 6:45pm by Chelsea

Chemistry/ Physical Chemistry
Napthalene is dissolved in a liquid with which it forms an ideal solution at 25C. The normal boiling point of napthalene is 80.2 C and ^fusH for napthalene is 19.0 KJ/mol. Determine the solublity of napthalene in this liquid at 25 C.
Sunday, November 19, 2006 at 3:56pm by Monquie

chemistry
The molar mass of a volatile liquid(one which vaporizes easily) can be determined by a the 'Dumas Method.' In this process a small amount of the liquid (a few drops) is placed in a clean flask. The mouth of the flask is covered with a piece of foil that has a small hole (pin ...
Wednesday, November 3, 2010 at 2:13pm by Dee

AP Chemistry
The molar mass of a volatile liquid (one which vaporizes easily) can be determined by a the DUMAS METHOD.' In this process a small amount of the liquid (a few drops) is placed in a clean flask. The mouth of the flask is covered with a piece of foil that has a small hole (pin ...
Thursday, November 4, 2010 at 4:52am by D

Physics
You need to do the problem in three parts: (1) The heating of the ice to 0 C, (2) the melting of the ice, and (3) the heating of the liquid water. First caclulate the amount of heat needed to heat the 10 kg to 0 C, and then the amount needed to heat the ice at 0 C. The ...
Saturday, April 5, 2008 at 5:40am by drwls

Science
Which of the following phases of matter has a definite volume, but takes the shape of its container? A). Solid Phase B). Liquid Phase C). Gaseous Phase D). All the above are correct
Tuesday, August 21, 2012 at 3:22pm by miguel

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!
A sealed flask contains 0.60 g of water at 28 degrees celcius. The vapor pressure of water at this temperature is 28.36 mmHg. What is the minimum volume of the flask in order that no liquid water be present in the flask?
Monday, December 6, 2010 at 6:48pm by BillNyeTheScienceGuy

chemistry
Calculate the heat that is either gainer or lost when 25.0 g of steam ( MW=18.02, cp: .0753, delta H fus 6.01 kj, delta H vap:40.67 kj, at 100C condenses to liquid water at 100 C.
Sunday, October 3, 2010 at 8:49pm by Sarah

chemistry
Calculate the heat that is either gainer or lost when 25.0 g of steam ( MW=18.02, cp: .0753, delta H fus 6.01 kj, delta H vap:40.67 kj, at 100C condenses to liquid water at 100 C.
Monday, October 4, 2010 at 11:49am by Sarah

chemistry
A 10.0 g sample of liquid gallium metal, at its melting point, is added to 50.0g of water. The initital temperature of the water is 24.0 degrees C. If the molar enthalpy of freezing gallium is -5.54 kj/mol, what is the final temperature of the water? Thanks
Sunday, November 7, 2010 at 10:04pm by Bob

Physics
You must provide the units of her weight as well as a number. Is it pounds? If she "barely floats", her volume is the same as that of an equal mass of liquid water. Water weighs 62.4 lb/ft^3 150 lb of water would occupy 2.40 ft^3
Friday, January 25, 2013 at 10:23am by drwls

Chemistry
Calculate the enthalpy change when 45 g of ice at -40.0 oC is heated to completely melt to liquid water at 0.0oC. (The heat of fusion for water is 333 J/g.)
Friday, April 5, 2013 at 4:59pm by Brittney

Chemistry
First, you made an error before you get to that part. grams O = 2.00-grams C - grams H. You subtracted grams CO2 and grams H2O. Your grams C (and moles) is ok as is the grams H (and moles H) but the oxygen must be redone.
Monday, October 17, 2011 at 9:21pm by DrBob222

chemistry
First, we get the molar masses to the CuCl2 and H2O. Just get a periodic table and add the individual masses of elements in the chemical formula: CuCl2: 63.55 + 2*35.45 = 134.45 H2O: 2*1 + 1*16 = 18 Then we get their moles. We divide the mass by the molar mass to get the moles...
Tuesday, September 24, 2013 at 3:17am by Jai

Chemistry
16.7 grams of chlorine gas are allowed to react with with 3.31 grams of water What is the maximum amount of hydrochloric acid that can be formed in grams. What is the maximum amount of hydrochloric acid that can be formed? grams What is the FORMULA for the limiting reagent? ...
Saturday, December 4, 2010 at 4:31pm by Austin Jekins

science
Liquid soap is a viscous (thick) solution that can form a solid by the evaporation of water in it. Some liquid soap remains at the tip through capillary action and forms a solid deposit by the evaporation of water. Initially, the spout opening becomes narrower and eventually ...
Tuesday, December 16, 2008 at 8:36pm by GK

calorimetry
if 158 grams of silver at a temperature of 98.5 degrees celcius is placed in a styrofoam cup of 85 grams of water at 13 degrees celcius, what would the final temperature of the water be in two minutes
Wednesday, February 25, 2009 at 4:19pm by moe

chemistry
From the following combustion: 1-butanol + oxygen = carbon dioxide + water. How many grams of carbon dioxide and water are produced when 130.6 grams of 1-butanol is completely burned? Please help me! I have not a clue! Thanks so much!
Saturday, November 28, 2009 at 1:01pm by Turtle Lover

Chemistry
Please read to the bottom - This help was wonderful and absolutely correct, I'm asking a bit more regarding the same question, please read below. Imagine that you have been asked to prepare 500ml of a 0.25 mol L solution of Sodium Hydroxide, NaOH. Describe how you would ...
Friday, October 15, 2010 at 7:47pm by Dexter

math
Is a glass of water equal to 30 grams or 300 grams? More likely 300 grams. 30 grms would be nearly two tablespoons.
Wednesday, April 4, 2007 at 7:56pm by dan

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