Explain how a pH meter could be used to find the exact volume of acid required to completely react with the sodium carbonate solution.

It's not the same dearthe first one is in grams per mole while the other is not

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.

Woah that’s a lot to read xd i’ll try though. i’ll get back t you if. i know the andwer