CHEM/Math help: Density/Buoyancy?
961639
2) 62.4 lbs/ft^3 = freshwater?\nI know for sure that 62.4 lbs of water is equal to 1 cubic ft of water.\n\n4) looks like buoyancy
1143445
Water has a density maxima at 4C
781338
The density is 0.357 g/mL. This is because specific gravity is the ratio of the density of the unknown liquid to the density of water, 1.0 g/mL.\n\nIf, say, you wanted to know the density of the liquid in pounds per gallon, you would multiply 0.357 by the density of water, which is 8.320 lb/gal
282227
http://www.answers.com/topic/density?method=22\nhttp://www.reference.com/search?q=density
439952
You can find in "Chemical Engineer's Handbook", from Perry-Chilton, graphics for density of water + NaCl solution vs. %w/w of NaCl. The NaCl concentration is 3.5%
117640
Buoyancy is a force.  Density is the ratio of an objects mass to volume (D=m/v).\n\nThe buoyancy force exerted on an object is dependent on the amount of (for lack of a better work) "stuff" it displaces.\nFor example, a ship floating in the water floats because the weight of the water it displaces is greater than its own weight.  Likewise, a balloon filled with Helium will float because the weight of the air it displaces it more than its own weight.
859051
water has density 1gm/ml. what ever is the volume in ml for water same is the mass in gms because density = mass/volume\n\n\ni hope it will help you out
959807
You must show not tell. Take a bowl filled to the top with water and put it on a plate to catch overflow. The put objects in the water and compare the overflow for sinking and floating objects of the same size. If you have a scale weigh the objects and the water if not just hold them and judge weight. Then explain density.
765374
Go back to basics...\n\nDensity = mass / volume\n\nSo for compressible fluids if the volume goes down the density goes up...if the volume goes up the density goes down.  In general then we can say that density of a compressible fluid is inversely proportional to volume.
832535
The way to solve this:\n1 Estimate your volume. You probably float in a swimming pool, but not by much. Whatever your mass is, you displace that mass of water when you float. From the density of water, that mass of water, m, has a volume of \nV = m * (1 m^3) / 1000 kg\nSo V is a bit less than your volume, assuming that you float with your head above the water. So figure that your volume is 1.1*V. \n\n2 Find the mass of 1.1*V of air. From the density of air, the mass of that volume is\nMair = 1.1V * (1.3 kg) / 1 m^3\nFor the bouyant force of the air on you, F = Mair*g.
347041
density has to do with the relationship between mass and volume. Water has a density of 1. As long as the mass stays in the same relationship with the volume of water, it has the same density.
272450
The density must be 1.09 g/mL, not g/mol\nM = mol solute/ L sol'n\n\n8.50% sol'n NaC2H3O2 = 8.50 g NaC2H3O2/100 g sol'n\n\nTherefore, \nM = (8.50 g NaC2H3O2)/(100g sol'n) x (1 mol/82.0 g)\nx (1.09 g/1 mL) x (1000 mL/1 L)\nM = 1.1298780 M = 1.13 M ^_^
156716
in reality, it is the surface tension (adherance of molecules to one another) and density of the fluid\nbecause the question does not state that the object is suspened in the fluid\n\notherwise the force acting to keep an object buoyant would need to equate and thus counteract the objects weight (which is the force of gravity pulling said object down)\n\nmass X volume = density which is a factor in determining a force acting upon the object; a force working to cause the object to disperse within the less dense fluid or conversely the fluid to compress and colapse the object\n\nSo the author of the question given is expecting the answer: weight
1121653
density=mass/volume or something like that, so if u have the density and the volume (aproximations ofcourse) u can find the mass\n\ni think! lol
982941
Fluid Pressure= weight density x (times) depth\n\nFl. p.= 10,000 kg/m^3(thats the weight density of water) x 15 m\n\nFl. p.= 150,000 m^2 (because one m cancels)\nHope this helps!
963983
There are many ways to do this problem.  The best way to probably handle density, and perhaps mass even, is using Archimedes principle of buoyancy.  You can find a detailed discussion on www.wikipedia.com and search for Archimedes or buoyancy.  The main idea is that "the weight of the displaced fluid is directly proportional to the volume of the displaced fluid".  \n\ngood luck!
149911
Density = Mass / Volume\nIf you know any 2 of the above quantities, you can find the other.