what is the weight in kilogarms of a liter of plutonium?
452305
You will need to know the density of Plutonium at the specific temperature and phase you are talking about.\n\nDensity = mass / volume\n\nDepending on the units of the density given, you may have to do some conversion, then simply solve for mass.\n\nMass and weight are NOT the same thing, nor do they have the same units.  Mass has units of kilograms where as Weight has units of Newtons.\nIf you truely do want the "Weight" of the Plutonium, then you must multiply its mass by the acceleration due to gravity is experiences (~9.81 m/s^2 on the surface of Earth).\nw = mg\n\n\nThe density of solid Plutonium at standard conditions is 19816 kg/m^3 which equals 19.816 kg/Liter.\nSo 1 Liter of Plutonium under these conditions has a mass of 19.816 kg and a weight of 194.4 Newtons.
414222
For each, you have to calculate the number of moles needed from the volume and the final molarity:\n\nFor potassium iodine:\nV= 400ml= 0.4L\nM= 0.2M= 0.2 moles/L\n\n#moles KI required = 0.4L * 0.2moles/L= 0.08moles KI\n\nYou can then calculate the mass of KI needed by using the #moles calculated above and the molecular weight of KI\n\nMW of KI= 166 g/mole\n\n# grams KI required = 0.08 moles KI required * 166g/mole\n# grams KI required = 13.28g KI required\n\nYou calculate the answer for FeCl3 in the same manner.  I think you can handle it from here.
101463
that depends on the material's specific gravity\nweight in kg = specific gravity * volume in ltrs
679893
liters gallon quart ounce\ncalories kilocalories degrees btu
973272
ok, first go to moles.\n\n24.0g LiOH (1mol/23.948g) = 1.0022mol\n\nnow get liters using molarity\n\n1.0022mol (1L/0.153mol) = 6.55L or 6,550mL \n\nRight, there ya go, remember that you have 3 sig.figs. so you may want to represent significance by using scientific notation. So...\n6.55x10^3mL\n\nIf you're ever stuck, just simply go to moles and that will get you started (and usually gets you some points on tests).
957415
Use PV = n RT, RT = constant. Therefore n = PV * constant in the three cases.\nWe have \nH2 :  P = 372 torr V = 2 liter  n_H2=  744 * constant\nN2:  P = p torr V = 1 liter  n_N2 = p * constant\nCombined: P = 303 torr V=3 liter  n_combined = 909 * constant\n\nTherefore  744 + p = 909 => p = 165 torr
321421
0.215 kL = 215L\n(1kL = 1000L)
245381
5.9736×1024 kg\n\ncheck the link for more info
770958
1/1000 x molar mass (grams/litre) and solute in 1 litre
836776
PV=nRT  n=PV/RT   V=nRT/P\n\nR= 0.08206 L atm mol^-1 k^-1\n\n922 torr/760 torr= 1.213 atm\n\nn= (1.213 atm x 35.3 L)/(0.08206 Latm/molK x 315K)\n\nn=1.6565 mol Propane\n\nSTP = 1 atm, 273K\n\nV = (1.6565 mol x 0.08206 Latm/molK x 273K)/(1 atm)\nV = 37.1095 L\nV = 37.1 L (sig figs)
143616
Electrons have a rest mass of 9.109 x 10^-31 kg.  Which means they weigh 8.93 x 10^-30 N, which is about 2.01 x 10^-30 lbs.
484098
I GOT THIS FROM WIKIPEDIA\n\nPlutonium is a radioactive, metallic, chemical element. It has the symbol Pu and the atomic number 94. It is the element used in most modern nuclear weapons. The most important isotope of plutonium is 239Pu, with a half-life of 24,110 years. It can be made from natural uranium and is fissile. The most stable isotope is 244Pu, with a half-life of about 80 million years, long enough to be found in extremely small quantities in nature. Nuclear materials workers sometimes call it "plute".\n\nThe isotope 239Pu is a key fissile component in modern nuclear weapons, due to its ease of fissioning and availability. The critical mass for an unreflected sphere of plutonium is 16 kg, but through the use of a neutron reflecting tamper the pit of plutonium in a fission bomb is reduced to 10 kg, which is a sphere with a diameter of 10 cm. Complete detonation of plutonium will produce an explosion of 20 kilotons of trinitrotoluene (TNT) per kilogram. (See also nuclear weapon design.)\n\nPlutonium could also be used to manufacture radiological weapons or as a (not particularly deadly) poison.\n\nAll isotopes and compounds of plutonium are toxic and radioactive. While plutonium is sometimes described in media reports as "the most toxic substance known to man", there is general agreement among experts in the field that this is incorrect. As of 2006, there has yet to be a single human death officially attributed to exposure to plutonium itself (with the exception of plutonium-related criticality accidents). Naturally-occurring radium is about 200 times more radiotoxic than plutonium, and some organic toxins like Botulin toxin are still more toxic. Botulin toxin, in particular, has a lethal dose of 300pg/kg, far less than the quantity of plutonium that poses a significant cancer risk. In addition, beta and gamma emitters (including the C-14 and K-40 in nearly all food) can cause cancer on casual contact, which alpha emitters cannot.\n\nWhen taken in by mouth, plutonium is less poisonous (except for risk of causing cancer) than several common substances including caffeine, acetaminophen, some vitamins, pseudoephedrine, and any number of plants and fungi. It is perhaps somewhat more poisonous than pure ethanol, but less so than tobacco; and many illegal drugs (some such as marijuana are negligibly poisonous). From a purely chemical standpoint, it is about as poisonous as lead and other heavy metals. Not surprisingly, it has a metalic taste. [3]\n\nThat said, there is no doubt that plutonium may be extremely dangerous when handled incorrectly. The alpha radiation it emits does not penetrate the skin, but can irradiate internal organs when plutonium is inhaled or ingested. Particularly at risk are the skeleton, whose surface it is likely to be absorbed on, and the liver, where it will collect and become concentrated. Approximately 0.008 microcuries absorbed in bone marrow is the maximum withstandable dose. Anything more is considered toxic. Extremely fine particles of plutonium (on the order of micrograms) can cause lung cancer if inhaled.\n\nOther substances including ricin, botulinum toxin, and tetanus toxin are fatal in doses of (sometimes far) under one milligram, and others (the nerve agents, the amanita toxin, the fugu toxin) are in the range of a few milligrams. As such, plutonium is not unusual in terms of toxicity, even by inhalation. In addition, those substances are fatal in hours to days, whereas plutonium (and other cancer-causing radioactives) give an increased chance of illness decades in the future. Considerably larger amounts may cause acute radiation poisoning and death if ingested or inhaled; however, so far, no human is known to have immediately died because of inhaling or ingesting plutonium and many people have measurable amounts of plutonium in their bodies.\n\nIt must be noted, however, that in contrast to naturally occurring radioisotopes such as radium or C-14, plutonium was man
334939
Sticky tape 5kg of plutonium to 1 stick of dynamite. Light fuse and stand well back.
705673
no jeremy you must be thinking of other radioactive elements. plutonium is safe enough to handle without any safety apparatus, though the thought of doing that sounds stupid.\n\nPu238 and 239 are alpha emitters , ie their radiation does not penetrate skin. a solid ball of plutonium poses no risk unless a brick is dropped onto it, in which case there is a surge of radiation emitted, and a very high risk of acute radiation poisoning. of course such a careless act will cause trouble with any kind of radioactive metal, not just Pu.\n\notherwise it would require you to inhale powdered plutonium to even give you an elevated risk of injury. thats right, since alpha particles cant penetrate your skin, you have to put plutonium in your gut to have it do damage to you.
611468
Plutonium 238 is the isotope used to fuel spacecraft.  It has a half life of about 88 years meaning that if you have 1 gram of it now, in 88 years you will have 1/2 gram of it.  The heat is used to power a thermocouple and that makes electricity.\n\nThess links are pretty good reading:\n\nhttp://www.epa.gov/radiation/radionuclides/plutonium.htm\n\nhttp://www.lanl.gov/source/orgs/nmt/nmtdo/AQarchive/05spring/heart.html\n\nhttp://www.uic.com.au/nip18.htm\n\nRemember, heat and temperature are too different things.  The environment where the stuff is kept would determine the temperature.  How much of it you have would determine the amount of heat it outputs.  I would surmise that over a period of 88 years, the heat output would be 1/2 of what it originally was.
780066
V = nRT/P\nV = (25g/44g/mol)(0.08206Latm/molK)(298K)/1atm\nV = 138.9 L
823832
The Davy Crockett warhead( W54 ) with a weight of only 51 lb (23 kg) was the smallest and lightest nuclear weapon ever deployed by the U.S. military in 1961. This W54 has been said to be suitable as "suitcase bags" \n\nPresently, The Small Diameter Bomb (SDB) is half the weight of the smallest bomb the Air Force uses today,500-pound Mark 82. It uses a 250 pound-class warhead that has demonstrated penetration of more than 6 feet of reinforced concrete. The weapon was flown into combat for the first time last Oct. 5, 2006 by members of the 494th Expeditionary Fighter Squadron unit deployed to the Southwest Asia area of operations. SDB is currently the smallest guided bomb in the Air Force.☺