Please calculate the amount of energy it will take to change 20.0 grams of Water from -3oC all the way to vapor (100oC) at sea level. Show all your work for credit.
1. heat of fusion of water = 334 J/g
2. heat of vaporization of water = 2257 J/g
3. specific heat of ice = 2.09 J/g·°C
4. specific heat of water = 4.18 J/g·°C

hloride, what is the mass of calcium in

explanation:

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 dissolution of polymer can be thermodynamically described in 2 steps.

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