Find [oh-], ph and poh of a solution where [h+]=7.2x10-2m

In apex! a liquid heated beyond a certain temperature becomes

How many moles are in 123.0 grams of kclo4?

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.