Chemistry
From the equation : C + 2H2SO4 ⟶ CO2 + 2H2O + 2SO2
Calculate :
(i) The mass of carbon oxidized by 49 g of sulphuric acid [C = 12 ; relative molecular mass of H2SO4 = 98].
(ii) The volume of SO2 measured at s.t.p., liberated at the same time.
Related Questions
The relative molecular mass [mol. wt.] of copper oxide is 80. What vol. of NH3 (measured at s.t.p.) is required to completely reduce 120 g of CuO.
[3CuO + 2NH3 ⟶ 3Cu + 3H2O + N2].
A sample of ammonium nitrate when heated yields 8.96 litres of steam (measured at stp.)
NH4NO3 ⟶ N2O + 2H2O
(i) What volume of di nitrogen oxide is produced at the same time as 8.96 litres of steam.
(ii) What mass of ammonium nitrate should be heated to produce 8.96 litres of steam [Relative molecular mass of NH4NO3 is 80]
Commercial NaOH weighing 30 g. has some NaCl in it. The mixture on dissolving in water and treatment with excess AgNO3 soln. formed a precipitate weighing 14.3 g. What is the percentage of NaCl in the commercial sample of NaOH.
NaCl + AgNO3 ⟶ AgCl + NaNO3
[Relative molecular mass of NaCl = 58 ; AgCl = 143]
Calculate the volume of oxygen required for the complete combustion of 8.8 g of propane [C3H8].
[C = 12, O = 16, H = 1, Molar Volume = 22.4 dm3 at s.t.p.]