Excess calcium reacts with 100 ml of 4.00 M H2SO4 through single replacement. How many liters of hydrogen gas are released at STP?

Please show your work and explain how you got to this.

Question

Excess calcium reacts with 100 ml of 4.00 M H2SO4 through single replacement. How many liters of hydrogen gas are released at STP?

Please show your work and explain how you got to this.

anonymous · Answer

The balanced eq : Ca + H2SO4 --> CaSO4 + H2
mole of H2SO4 = 4 M x 0.1 L = 0.4 
Volume H2 at STP = 0.4 x 22.4 = 8.96 litres

anonymous · Answer

The .1 L is 100 ml converted into L right?

anonymous · Answer

right

anonymous · Answer

Okay, thank you very much. This helps a lot!

anonymous · Answer

ur welcome