Chandra wants to know how many moles are contained in 150.0 g ccl4 (carbon tetrachloride). what quantity of ccl4 should she use to make this conversion?

number of molecules
molecular mass
molar mass
mole ratio

The right answer is Molar mass

The molar mass of CCL4 is 153.82 g / mol. It is a colorless, very volatile liquid whose vapors are harmful to living beings and dangerous for the ozone layer.

If we want to calculate the number of moles.

n = mass / molar mass = 150 / 153.82 = 0.975mol

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).