the pressure of 8.4 of nitrogen gas in a flexible container is decreased to one-half its original size
1 answer:
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Answer: 0.123 M
Explanation:
According to the neutralization law:
where,
= molarity of
solution = ?
= volume of
solution = 15.00 ml
= molarity of
solution = 0.100 M
= volume of
solution = 18.44 ml
= valency of
= 1
= valency of
= 1
Therefore, the concentration of the unknown HBr solution is 0.123 M
Answer : The energy produced from the combustion of 5 mole is
Solution : Given,
Released energy = 803 KJ
The balanced combustion reaction is,
As per the question,
1 mole of releases energy = 803 KJ
5 mole of produced energy =
Therefore, the energy produced from the combustion of 5 mole is