Calculate the solubility of zn(oh)2(s) in 2.0 m naoh solution. (hint: you must take into account the formation of zn(oh)2−4, whi
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Answer:
Explanation:
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In this case, since the bond energy per C-H bond is 411 kJ/mol and we of course avoid the C-C bond since we are asked to compute the energy to break 7 C-H bonds, the 411 kJ/mol are multiplied by 7 as shown below:
Thus, we obtain the required bond dissociation energy. Note that propane CH₃-CH₂-CH₃ has seven C-H bonds; 3 from the first CH₃, two from the CH₂ and 3 from the last CH₃.
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Answer:
The maximum mass of water produced is
Explanation:
From the question we are told that
The mass of sucrose is
The chemical formula for sucrose is
The chemical equation for the dissociation of sucrose is
The number of moles of sucrose can be evaluated as
Where Z is the molar mass of sucrose which has a constant value of
So
From the chemical equation one mole of sucrose produces 11 moles of water so 0.585 moles of sucrose will produce x moles of water
Therefore
Now the mass of water produced is mathematically represented as
Where is the molar mass of water with a constant values of
So