Determine the molality of a solution prepared by dissolving 0.500 moles of CaF2 in 11.5 moles H20.

As you move from right to left on the periodic table the atomic radius fill in the blank

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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?