Based on the chemical equation, use the drop-down menu to choose the coefficients that will balance the chemical equation: ()zn
1 answer:
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Answer : The value of for the reaction is, -565.6 kJ
Explanation :
First we have to calculate the molar mass of CO.
Molar mass CO = Atomic mass of C + Atomic mass of O = 12 + 16 = 28 g/mole
Now we have to calculate the moles of CO.
Now we have to calculate the value of for the reaction.
The balanced equation will be,
From the balanced chemical reaction we conclude that,
As, of CO release heat = 10.1 kJ
So, 2 mole of CO release heat =
Therefore, the value of for the reaction is, -565.6 kJ (The negative sign indicates the amount of energy is released)
Answer: 10
Explanation:
The detailed solution is contained in the image attached. The molar mass of hydrated and anhydrous salts are obtained and the number of moles of hydrated and hydrated salts are equated. The masses of hydrated and anhydrous salts are gives in the question and are simply substituted accordingly. This can now be used to obtain the number of molecules of water of crystallization as required in the question.
