In a combustion reaction, pentane (molar mass (MM) = 72.17 g/mol) burns, in the presence of oxygen (MM = 32.00 g/mol), to produce carbon dioxide (MM = 44.01 g/mol) and water (MM = 18.02 g/mol). The balanced reaction is shown here: C5H12 (l) + 8 O2 (g) à 5 CO2 (g) + 6 H2O (g)

If 160. g O2 is burned, what mass of CO2 is produced?

A.
138 g

B.
68.8 g

C.
264 g

D.
352 g

Some liquids can be distilled, but only at temperatures that are so high that it is impractical, or so high the compound decomposes. explain why distillation such compounds at significantly less than atmospheric pressure (some degree of vacuum) would solve this problem.

Calculate the estimated density of each ball. use the formula d = m/v where d is the density, m is the mass, and v is the volume. record your calculations in table a of your student guide. given that the density of water is 1.0 g/cm3, make a prediction about whether each ball will float in water. record your prediction in table a. what is the estimated density of the table tennis ball? record your answer to the nearest hundredth

The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?