The logarithmic scale of pH means that as pH increases, the H+ concentration will decrease by a power of 10. Thus at a pH of 0, H+ has a concentration of 1 M. At a pH of 7, this decreases to 0.0000001 M. At a pH of 14, there is only 0.00000000000001 M H+.
HSA distributions. The IRS requires you to prepare Form 8889 and attach it to your tax return when you take a distribution from an HSA. However, if your 1099-SA indicates you did not use the distribution for qualified medical expenses, you will pay income tax on the portion you used for unqualified expenses.
Uniform distribution (continuous) In probability theory and statistics, the continuous uniform distribution or rectangular distribution is a family of symmetric probability distributions such that for each member of the family, all intervals of the same length on the distribution's support are equally probable.