Answer: 6.6
Explanation: For steps pleaase go here https://www.percentagecal.com/answer/what-is-15-percent-of-44
Answer:
drop them in a deep dish of water
The relationship between boiling point of liquid and elevation is inverse. Means, with increase in altitude the boiling point will decrease. This is because with increase in altitude the atmospheric pressure will decrease, as boiling point is temperature at which vapor pressure of liquid becomes equal to the atmospheric pressure.
Hence, the city where boiling point of specific liquid is 141 °C is at higher elevation. And the liquid with boiling point of 145 °C is experiencing higher atmospheric pressure due to less altitude of the city it is present in.
Answer:- Molecular formula of the compound is .
Solution:- From given information:
C = 46.47%
H = 7.80%
Cl = 45.72%
First of all we find out the empirical formula from given percentages. We divide the given percentages by their respective atomic masses to calculate the moles:
= 3.87
= 7.72
= 1.29
Now, we divide the moles of each by the least one of them. Least one is Cl as it's moles are least as compared to the moles of C and H. So, let's divide the moles of each by 1.29.
= 3
= 6
= 1
So, the empirical formula of the compound is .
Empirical formula mass = 3(12.01) + 6(1.01) + 1(35.45)
= 36.03 + 6.06 + 35.45
= 77.54
To calculate the number of formula units we divide molar mass by empirical formula mass.
number of empirical formula units =
= 2
So, the molecular formula would be two times of empirical formula that is, .