• To have equilibrium in a certain structure, the parameters x, y, z, w must satisfy the following equations. Find the values of x, y, z, w (problem from D.R.Green, J.Lewis - "Science with Pocket Calculators").
Rounding: x = 1.719·10−3, y = 8.680·10−4, z = 1.314·10−3, w = 5.182·10−4
• Find x, y, z, w integers such that
Looking at the elements that appear on the two sides of the relationship, we have that it must be (for, in order, Cu, H, S, O):
Cu: x - z = 0 H: 2y - 2w = 0 S: y - z = 1 O: 4y - 4z - w = 2
Cu + 2H2SO4 → CuSO4+ 2H2O + SO2