1. A sample of commercial concentrated hydrochloric acid is 11.8 M HCl and has a density of 1.190 g/ml. Calculate
a the mass % of HCI
b the molality of Ha
e the mole fraction of HCI

What is i fracture in the crust called when land move up, down or sideways

Consider the reaction: n2(g) + o2(g) ⇄ 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?

8. what happens to matter during a chemical reaction