Answer to Question #334697 in General Chemistry for Greenjoy

Question

Considering the reaction 2H2(g) +2H2 O(g). Calculate the volume of unused oxygen gas when 40cm³ of hydrogen gas is sparked with 30cm³ of oxygen gas

(b) calculate carbonate of mass 1.0g was heated until there was no further change.

(c). Write an equation for the reaction which took place

(d) calculate the mass of the residue

(e). Calculate the volume of the gas evolved at STP.

(f). What will be the volume of the gas measured at 15°c and 760mm Hg?(C=12.0, O=16, Ca=40.0, Molar mass volume of a gas at STP= 022.4dm³)

Answer 1

c)2 H₂ (g) + O₂ (g) → 2 H₂O

a) 10cm³ volume of unused O2

b)2 g

c)0.14 g

d) 15 ml

f)20 l