2g hydrogen (at. mass = 1 u) and 80 gram bromine (at. mass = 80 u) react to form hydrogen bromide. What is the maximum number of grams of hydrogen bromide that can be formed?
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Explanation:
21H2 + 21Br2 → HBr
Ca + Br2 → CaBr2
4g of broime react with 1 g of Ca
160 g of bromine react with = 41∗160 = 40 g
equivalent mass of calcium = valancyatomicmass
equivalent mass of calcium = 240
equivalent mass of calcium = 20
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