For the balanced equation 2Al(s) + 3CuCl2(aq) -> 2Cu(s) + 3AlCl3(aq)
How many grams of CuCl2 are needed to react with 48.5 g of Al?
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Answer:
361gm
Explanation:
gram molecular weight of Al = 27gm
gm mol. weight of CuCl2 = 134gm
From the reaction
2 ×27 gm of Al reacts with 3 × 134 gm of CuCl2
if so, then 48.5gm of Al reacts with [(3 × 134) × (48.5) ] ÷ (2 ×27) gm
i.e., 361 gm of CuCl2
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