Which statement is true?
1 answer:
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Answer:
The answer is
<h2>1, 214, 285.71 g/mL</h2>Explanation:
The density of a substance can be found by using the formula
From the question
mass of gas = 8.5 × 10^9 g
But 1 L = 1000 mL
So 7 L = 7000 mL
volume = 7000 mL
So the density of the gas is
We have the final answer as
1, 214, 285.71 g/mL
Hope this helps you
This is an incomplete question, here is a complete question.
Ethanol has a heat of vaporization of 38.56 kJ/mol and a normal boiling point of 78.4 °C. What is the vapor pressure of ethanol at 14 °C?
Answer : The vapor pressure of ethanol at is
Explanation :
The Clausius- Clapeyron equation is :
where,
= vapor pressure of ethanol at
= ?
= vapor pressure of ethanol at normal boiling point = 1 atm
= temperature of ethanol =
= normal boiling point of ethanol =
= heat of vaporization = 38.56 kJ/mole = 38560 J/mole
R = universal constant = 8.314 J/K.mole
Now put all the given values in the above formula, we get:
Hence, the vapor pressure of ethanol at is