Answer to Question #155948 in General Chemistry for Shreya

Question

Ques. VICKEY AND RIYA HAS SAME NO OF MOLECULES OF CO2 AND H2O RESPECTIVELY IN A CLOSED CONTAINER THAT IS 18.066 X 10 ²³ MOLECULES. ANSWER THE FOLLOWING QUESTIONS.

A. WILL BOTH OF THE CONTAINER HAS SAME MASS AS THE NUMBER OF PARTICLES ARE SAME?

B. CALCULATE THE MASS OF BOTH THE CONTAINERS. WHICH ONE WILL HAVE THE MORE MASS?

Answer 1

A. NO

B.

$$n = N/N_a$$

$$n = 18.066*10^{23}/(6.022*10^{23}) = 3 mol$$

$$m(CO_2) = nM = 3mol*44g/mol = 132 g$$

$$m(H_2O) = 3mol*18g/mol = 54g$$

CO₂ more H₂O