3 Cu + 8HNO3 → 3 Cu(NO3)2 + 2 NO + 4 H2O In the above equation, how many grams of water can be made when 19.8 moles of HNO3 are consumed?

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.