What is the mass (in grams) of 6.78 moles of dinitrogen pentoxide

The answer is:

There are 732.24 grams of Dinitrogen Pentoxide   in 6.78 moles of the same compound.

The dinitrogen pentoxide, or nitrogen pentoxide, is a rare salt that consists of anion and cations, and it's an important compound when preparing some kinds of explosives.

So, to answer the question, first,  need to look for the molecular formula of the dinitrogen pentoxide, then, use it to calculate the mass in gram of 6.78 moles of the same compound.

The dinitrogen pentoxide formula is:

Where, the molar mass of each element are:

Calculating the molar mass  of the compound, we have:

Now, calculating what is the mass of 6.78 of , we have:

So, there are 732.24 grams of Dinitrogen Pentoxide   in 6.78 moles of the same compound.

Have a nice day!

put the answers   and i could answer.

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.