I answered a question correctly and someone deleted my answer without giving me any explanation. I don't know why someone would
1 answer:
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Answer:
Math expression:
Explanation:
<u>Given:</u>
Energy produced per gram of gasoline = 45.0 kJ
Density of gasoline = 0.77 g/ml
Volume of gasoline = 5.2 L=5200 ml
<u>To determine:</u>
The amount of energy produced by burning 5.2 L gasoline
<u>Calculation set-up:</u>
1. Calculate the mass (m) of gasoline given the density (d) and volume (v)
2. Calculate the amount of energy produced
Answer:
Explanation:
Hello,
At first, the answer is wrong, consider the following procedure:
- the pKs, leads to a Ks of:
- now, stating the equilibrium for the calcium sulfate (whereas x is the change during the equilibrium):
- x becomes the concentration of calcium ions and one of the contributions for the total concentration of sulfate ions, thus:
- finally, since the sodium sulfate is totally dissolved, we just simply add its concentration (equal to the sulfate ions yielded by itself) to the outgoing sulfate concentration from the calcium sulfate:
Bibliography:https://books.google.com.co/books?id=LQwyfFc3pXsC&lpg=PA243&ots=zIJN3nSFWE&dq=pKs%20chemistry&pg=PA244#v=onepage&q=pKs%20chemistry&f=false page 243
Best regards!