On heating 5.0g of a fresh sample of X to constant mass,1.80g was lost in the form of water vapour . Calculate the number of water molecules or water of crystallization in one molecule (H=1,O=16,an hydros form of X =160g)m

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.

i think its 5049.

i hope this !

points

explanation: