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Mashutka [201]
2 years ago
8

I PLEASE HELP! How many liters of a 2.25 molar hydrobromic acid (HBr) solution would be needed to react completely with 100.0 gr

ams of calcium metal? Ca (s) + 2HBr (aq) CaBr2 (aq) + H2 (g)
Chemistry
1 answer:
PtichkaEL [24]2 years ago
8 0
Moles of calcium metal used = 100/40.1=2.5
Moles of HBr need to react = 5 moles 
As the molar ratio is 1 is to 2 among them 
so
Moles=molarity x volume
5=2.25 x volume
volume=2.22 litres of HBr required for this reaction
ANSWER IS 2.22 LITRES
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