How many moles are there in 8.25 x 1026 molecules of methane?

1370moles

Explanation:

Given parameters:

Number of molecules in methane  =  8.25 x 10²⁶molecules

Unknown:

Number of moles of methane  = ?

Solution:

A mole of any substance contains the Avogadro's number of particles which is 6.02 x 10²³molecules;

            6.02 x 10²³ molecules is contained in 1 mole of a substance

            8.25 x 10²⁶molecules  of methane will contain   = 1370moles

the only liquid elements at standard temperature and pressure are bromine (br) and mercury (hg). although, elements caesium (cs), rubidium (rb), francium (fr) and gallium (ga) become liquid at or just above room temperature.

explanation: