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Chemistry Question... Chem expert required*?
Sunglasses can be made from photochromic glass. when bright light strikes photochromic glass it darkens. photochromic glass contains small amounts of silver cloride agCl and copper(1) chloride, CuCl.
In the presence of bright light, silver chloride decomposes into silver atoms which make the glass go dark and into chlorine atoms.
AgCl -> Ag+Cl
Chlorine atoms immediately react with copper (1) chloride to make cioppper (II) chloride
CuCl+Cl -> CuCl2
When the exposure to bright light ends, silver atoms reduce copper (11) chloride aback into copper(1) chloride and silver chloride.
(a) calculate the maximum mass of silver that can be formed when 0.312g if silver chloride decomposes.
(b) Explain why reaction between copper 1 chloride and chlorine involves both oxidation and reduction
(c) construct the equation for the reaction between silver and copper1chloride.
sory i typed this shit in a hurry.. plz answer the questions.. thnx
No expert required....basic chemistry here.
a) Start with your given (0.312g AgCl) and solve for moles AgCl. Then use mole ratio to calculate moles of Ag, and last, use MM of Ag to solve for g Ag.
b) Please read up on redox reactions! They always occur together, since one compound/atom is losing an e- (oxidation) while the other is gaining (reduction). Remember: LEO says GER (lose e- = ox., gain e- = red.)
c) silver atoms reduce copper (11) chloride back into copper(1) chloride and silver chloride. All you need to do is put the symbols in for the elements....balance your charges (ie. Copper II is 2+ charge) and then balance your equation.
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