if the reaction of 20.7 grams of CaCO₃ produces 6.81 grams of CaO, what is the percent yield? CaCO₃ ---> CaO+CO₂ (can you show your work)?

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.