How much heat (in joules) must be added to a 49.5 g of solid iron to raise its temperature by 31.0 K? The specific heat capacity of solid iron is 0.444 J/g • K. If the slugs are each originally at 25.00°C, what is the final temperature of each slug?

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.