It's possible for a solution to have pH values below zero and above 14, so why is pH commonly described as having a range of only 0-14?

How many atoms are in 1.4 mil of phosphorus trifluoride (pf3)

Given the following reaction: c3h8+5o2=3co2+4h20 how many grams of co2 will be produced 7 g of c3h8 and 98 g of o2

Adeuteron, 21h, is the nucleus of a hydrogen isotope and consists of one proton and one neutron. the plasma of deuterons in a nuclear fusion reactor must be heated to about 3.02×108 k . what is the rms speed of the deuterons? express your answer using two significant figures.