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Stoichiometry: Chemistry?
So, the question is if 4.9 E ^23 particles of gold chloride decomposes, how many grams of gold are produced? I've tried it many times and keep getting 160,000 which doesnt seem right at all! I dont think I messed up the balanced equation but I got AuCl2 -> Au + Cl2 (the 2's are subscripts) Please help!
1 Answer
- ?Lv 61 decade agoFavorite Answer
1 mol of a substance are 6.023*10^23 particles. So you have 4.9/6.023 = 0.81 mol AuCl2 which produce the same no. of moles og Au.
Molar mass of Au is 196.97, so you get 0.81*196.97 = 160 g.
