How much would the boiling point of water increase if 4 mol of nacl were
added to 1 kg of water (kb = 0.51°c/(mol/kg) for water and i = 2 for nacl)?
a. 1.02°c
b. 0.51°c
c. 2.04ºc
d. 4.08°c

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.

the formula mass of a molecule or a compound is the sum of the atomic weights of the atoms in its empirical formula

(that's what i know about formula mass)