How much money does hydroelectricity cost per kilowatt hours? I pay .07 cents a kWh. If one kilowatt hour of electricity cost nine cents how much does it cost to run a 500 watt light bulb for twenty four hours? 500 watts x 24 hours = 12,000 watt hours or 12kW h. 12 kW h x 9 cents/kW h is $1.08.
Laudanum /ËlÉËdáµnÉm/ is a tincture of opium containing approximately 10% powdered opium by weight (the equivalent of 1% morphine).Reddish-brown and extremely bitter, laudanum contains almost all of the opium alkaloids, including morphine and codeine, and its high morphine concentration makes it a potent narcotic.everal historical varieties of laudanum exist, including Paracelsus ' laudanum, Sydenham's Laudanum (also known as tinctura opii crocata), benzoic laudanum (tinctura opii benzoica), and deodorized tincture of opium (the most common contemporary formulation), among others.
Best Answer: Hafnium is a chemical element with the symbol Hf and atomic number 72. A lustrous, silvery gray, tetravalent transition metal, hafnium chemically resembles zirconium and is found in zirconium minerals... Hafnium is used in filaments and electrodes. Some semiconductor fabrication processes use its oxide for integrated circuits at 45 nm and smaller feature lengths. Some superalloys used for special applications contain hafnium in combination with niobium, titanium, or tungsten... Hafnium's large neutron capture cross-section makes hafnium a good material for neutron absorption in control rods in nuclear power plants. Most of the hafnium produced is used in the production of control rods for nuclear reactors....