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

Question

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] · Answer 1 · 2022-09-03T22:32:45+03:00

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