PLEASE HURRY THIS IS TIMED A sample of a substance contains 3.70 1023 formula units. How many moles are contained in the sample?
0.615 1024 mol
0.615 mol
b. 0.615 1023 mol
d. 22.3 mol
C.

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.