An 825 gram iron block is heated to 352 'C and placed in an insulated container (of negligible heat capacity) containing 40.0 grams of water at 20.0 'C. What is the equilibrium temperature of this system

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.

the answer is 1 i believe

hey there!

mass = 6.75 g

volume =   9 cm³

therefore:

d = mass / volume

d   = 6.75 / 9

d = 0.7 g/cm³

answer b

idk what is it? is this a question that you know the answer or u dont