Chemistry

What volume of carbon (iv) oxide at s.t.p is evolved when o.5moles of NaHCO3 is heated

2 answers

you get (balance the equation) .5 moles of CO2, or 22.4/2 liters at STP

NaHCO3>>Co2 + NaOH
2 NaHCO3(s) → Na2CO3(s) + CO2(g) + H2O(g)

You one mol of CO2 for each 2 mols of soda
so we have .25 mol of Co2

a mole of ideal gas at STP is 22.4 liters
so

22.4 / 4 Liters