Question

A compound is analyzed and found to contain 12.1% carbon, 16.2% oxygen, and
71.7% chlorine (by mass). Calculate the empirical formula of this compound.
[A]COC12 ANSWER:
[B] CO2Cl2
[C] CO2C1
DI COC14
[E] COCI


A compound contains 40.0% carbon, 6.7% hydrogen, and 53.3% oxygen (by mass).
Calculate the empirical formula.
[A] C2H20[B] CH20 ANSWER:
[C] CH40
[D] C2H02
[E] C3H603


A compound contains 25.94% N and 74.06% 0 (by mass). What is the empirical formula?





Calculate the empirical formula of a compound containing 18.29% H and 81.71% C (by
mass).
​

Answer 1

Answer:

Osmosis is the spontaneous net movement of solvent molecules through a selectively permeable membrane into a region of higher solute concentration, in the direction that tends to equalize the solute concentrations on the two sides.