Question

Be sure to answer all parts. If it costs $155 per ton of metal to produce magnesium by the electrolysis of molten magnesium chloride, what is the cost (in dollars) of the electricity necessary to produce the following amounts of metals? Enter your answers in scientific notation. (a) 14.0 tons of aluminum: 10 dollars (b) 40.0 tons of sodium: ??-10?? dollars (c) 77.0 tons of calcium: ×1 dollars

Answer 1

a i tons o uminm 아, : Mogne s :um hos valence t 2 when its salts ote roninea, the magnesium ion h s chang e of mole of the ion is propamtiona to the chog mass de bo s: ted mic CURi

mo Aluminum 3 x otomieght 219 Codc.um atomcus eight t2xe Ko.9/m%) - The an« unt of electach heeft depasit one mole U-minum 75 maqhesium ohe mole of Al il wegh nes ohe male of M f舞Mg (Al is heave than Mg) moles o 1.333 each ton the

rhercfone 41ssxt. 3 33:$207 is the cost par. ton Theve fore, Cost for it.o tons 2o1 14 Nat chanqe Mt chang Weight taio- 24 O.S2 2-3 Thers fore

てole.um chonge./ng chang1 cost natio ()2424 to 0 to = $93 An F 7161

Ans usen in Scientifc notation a) 2.898 x lo3 dollans b) 3.2 +o xIo3 dollas s