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.
Hafnium (atomic number 72, symbol Hf) is a transitional metal and a chemical element, which chemically resembles zirconium.It is a silvery grey, lustrous, and ductile metal found in zirconium minerals.Hafnium is also corrosion resistant, but zirconium impurities affect its physical properties and its nuclear properties, in particular. Due to their chemical similarity, hafnium and zirconium are difficult to separate.iven that hafnium absorbs neutrons, it is used in nuclear reactors control rods. As an alloying agent, the element is also used in niobium, titanium, iron, and other metals. Hafnium is employed in high-temperature ceramics and alloys because some compounds of the element are refractory.