Now we can measure the concentrations in terms of molar amount, but the values we get can range from anywhere from ten to the negative 14 molar. That's a very small number. That's one divided by 100 trillion. And they could become as large as ten molar. Okay, so this becomes a problem. This is very inconvenient because say if you want to graph concentration in molar versus temperature, a graph would not be possible because our y scale would be just too big.