Calculate the number of atoms of gold contained in a 14 karat gold ring weighing 56.0 grams. 14K gold is 58.3% pure gold.

Spontaneity tell us the direction of the reaction, but not how fast it goes. gibbs free energy brings together enthalpy, entropy and temperature in one easy formula. g = h - ts. and, finally the sign of delta g is always negative for a spontaneous reaction.