Oxygen atoms have six outer electrons Write the symbol for an oxide ion.
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Answer:
Answer : The enthalpy change for the solution is 166.34 kJ/mol
Explanation :
First we have to calculate the enthalpy change of the reaction.
Formula used :
where,
= change in enthalpy = ?
C = heat capacity of water =
m = total mass of sample = 2.174 + 127.4 = 129.6 g
= initial temperature =
= final temperature =
Now put all the given values in the above expression, we get:
Now we have to calculate the moles of AX added to water.
Now we have to calculate the enthalpy change for the solution.
As, 0.04592 moles releases heat = 7638.36 J
So, 1 moles releases heat =
Therefore, the enthalpy change for the solution is 166.34 kJ/mol