Now what 9.7 means is it's a relatively large value, it's relatively positive. And so, this isn't a very good acid. But if the PH is driven high enough, it will become a good acid in a sense that it will readily dissociate and give off that H atom. Now, why is that a problem? Well, that's a problem because this H atom actually associates with the other complementary base to form a hydrogen bond. And the hydrogen bonds within our DNA hold the two strands of DNA together.