How many grams of water would require 2250 joules of heat to raise it’s temperature from 34.0 C to 100.0 C ?

8.117grams

Explanation:

its obtained from Q=MCT where

Q-HEAT REQUIRED

C-SPECIFIC HEAT CAPACITY OF WATER

M-MASS OF WATER

T-TEMPERATURE CHANGE(100C-34C)

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.