Aluminum chloride (AlCl3) is used in refining petroleum and manufacturing rubber and lubricants. A sample of aluminium chloride has 1.24x1024 molecules, how many moles are present?

Consider a culture medium on which only gram-positive organisms such as staphylococcus aureus colonies can grow due to an elevated nacl level. a yellow halo surrounds the growth, indicating the bacterium fermented a sugar in the medium, decreasing the ph as a result and changing the color of a ph indicator chemical. this type of medium would be referred to as a differential and enrichment culture.