The best answer for the question above would be the chloroflourocarbons or the CFCs. These chloroflourocarbons or CFCs are the ones responsible for the depletion of the ozone - which leads to leaving a hole in its layer. These gases eat out the ozone layer and allows harmful UV rays of the sun to come in the Earth.
Answer: H2O (water)
Explanation:
The answer choices for this question are:
A) H2O
B) N2
C) SO2
D) NO3
E) Cl2
The solution of the problem is:
1) Data:
<span> density, d = 1.4975 g/liter
volume, V = 8.64 liter
pressure, p = 2.384 atm
temperature, T = 349.6 K
2) Formulas:
d = m/V => m = d*V
n = m / molar mass => molar mass = m / n
pV = nRT => n = pV / RT
3) Solution
n = pV / RT = 2.384 atm * 8.64 liter / (0.0821 atm*liter/K*mol * 349.6K)
n = 0.7176 moles
</span>m = dV = 1.4975 g/ liter * <span>8.64 liter = 12.9384 g
molar mass = m / n = 12.9384 g / 0.7176 moles = 18.03 g/mol
That molar mass corresponds to the molar mass of water, therefore the gas is H2O (water vapor).</span>
<h3>
Answer:</h3>
D. CH₃O₆
<h3>
Explanation:</h3>
- We are given the ratio of carbon, hydrogen and oxygen in a compound as 14: 42 : 84
We are supposed to determine the empirical formula of the compound;
- We need to know what is an empirical formula;
- An empirical formula of a compound is a formula that shows the simplest whole number ratio of elements in a compound.
In this case;
The ratio of C : H : O is 14 : 42 : 84
- Note, this is not the simplest ratio.
But we can simplify further to get the simplest whole number ratio;
- Therefore, 14 : 42 : 84 is equal to 1 : 3 : 6
- Thus, the simplest whole number ratio of C : H : O in the compound is 1 : 3 : 6
- Therefore, the empirical formula of the compound is CH₃O₆
