Apatient needs 0.024g of sulfa drug. there are 4mg tablets in stock. how many tablets should be given

(0.024g/1) x (1000mg/1g) x (1 Tablet/ 4mg) = 6 Tablets

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.