What is the molarity of a sodium chloride solution that contains 0.19 moles dissolved in a 0.94 liter solution

The answer to your question is 0.2 M

Explanation:

Data

Molarity = ?

number of moles = 0.19

volume = 0.94 l

Molarity is a unit of concentration. It is also known as Molar concentration. This unit of concentration is defined as the number of moles of solute divided by the liter of solution.

Formula

Molarity = moles / volume

Substitution

Molarity = 0.19 / 0.94

Result

Molarity = 0.2

it is stable as it is in group 0 which have full outer shells of electrons

hydrocarbons are organic compounds that contain only hydrogens and carbons. they can be saturated (those which contain only carbon-carbon single bonds) or unsaturated (those which contain carbon-carbon double or triple bonds) in nature. hydrocarbons can undergo several reactions like substitution, elimination etc.  

on substituting one or more hydrogen atoms in hydrocarbon it results in the formation of haloalkane. as the halogen atoms are large compared to the carbon and hydrogen atoms, due to which the molecular weight increases and the bond become polar because of presence electronegative halogen atom and results in the increase in boiling point of the haloalkane.

thus, the correct option is (b) that is the boiling point of the new compound increases on substituting a hydrogen atom with a halogen in a hydrocarbon.