Methane (CH4, molar mass = 16.0 g/mol) has a Henry's Law constant (kH) of 9.88 × 10–2 mol/(L·atm) when dissolved in benzene at 25 °C. How many grams of CH4will dissolve in 3.00 L of benzene if the partial pressure of CH4 is 1.48 atm?

The mass of methane that will dissolve is 0.7008 grams

Explanation:

To calculate the molar solubility, we use the equation given by Henry's law, which is:

where,

= Henry's constant =

= molar solubility of methane gas = ?

= partial pressure of methane gas = 1.48 atm

Putting values in above equation, we get:

To calculate the mass of solute, we use the equation used to calculate the molarity of solution:

Given mass of methane = ?

Molar mass of methane = 16.0 g/mol

Molarity of solution = 0.0146 M

Volume of solution = 3.00 L

Putting values in above equation, we get:

Hence, the mass of methane that will dissolve is 0.7008 grams

explanation:

the largest database of organic compounds lists about 10 million substances, which include compounds originating from living organisms and those synthesized by chemists. the number of potential organic compounds has been estimated at 1060—an astronomically high number. the existence of so many organic molecules is a consequence of the ability of carbon atoms to form up to four strong bonds to other carbon atoms, resulting in chains and rings of many different sizes, shapes, and complexities. the simplest organic compounds contain only the elements carbon and hydrogen, and are called hydrocarbons. even though they are composed of only two types of atoms, there is a wide variety of hydrocarbons because they may consist of varying lengths of chains, branched chains, and rings of carbon atoms, or combinations of these structures. in addition, hydrocarbons may differ in the types of carbon-carbon bonds present in their molecules. many hydrocarbons are found in plants, animals, and their fossils; other hydrocarbons have been prepared in the laboratory. we use hydrocarbons every day, mainly as fuels, such as natural gas, acetylene, propane, butane, and the principal components of gasoline, diesel fuel, and heating oil. the familiar plastics polyethylene, polypropylene, and polystyrene are also hydrocarbons. we can distinguish several types of hydrocarbons by differences in the bonding between carbon atoms. this leads to differences in geometries and in the hybridization of the carbon orbitals.