In: Chemistry
Glycine, C2H5O2N, is important for biological energy. The combustion reaction of glycine is described by the following thermochemical equation. 4C2H5O2N(s) + 9O2(g) → 8CO2(g) + 10H2O(l) + 2N2(g) ΔH°rxn=-3857 kj/mol. What is the energy transfer in the oxidation of 17.00g of glycine?
4 C2H5O2N(s) + 9O2(g) ------------------- 8 CO2(g) + 10 H2O(l) + 2 N2(g) ΔH°rxn=-3857 kj/mol
4 mole
molar mass of glycine= 75.07 g/mole
mass of one mole of glycine = 75.07 grams
mass of 4 moles of glycine = 4 x75.07 = 300.28 grams
according to equation
energy is transferred from 300.28 grams of glycine = 3857 Kj
enegy is transfereed from 17.00 grams of glycine = ?
= 3857 x 17.00/300.28 = 218.36 KJ
Energy transferred during the oxidatioong glycine 218.36 KJ