Question

Heat of formation of NaOH(aq ) at 25°C =
- 470.7KJ
Heat of formation of OH(aq) at 25°C =
- 228.8KJ
The standard heat of formation of sodium ions
in aqueous solution from the above data is :
1)-251.9KJ
2) 241.9KJ
3) -241.9KJ
4) 301.9KJ

Answer 1

Answer:

3)-241.9KJ

Explanation:

Let delta h be s

SNAOH=SNa+SOH

-470.7=SNa - 228.8

SNa=-470.7+228.8

SNa=-241.9KJ

Answer 2

Answer:

☺ HERE IS YOUR ANSWER ☺

OPTION (3) IS THE CORRECT ANSWER

-241.9KJ✔✔

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