What is apparent magnitude?​

Define dew point. i am writing this part to be able to ask the question

How many mmols of tris-hcl are there in 100 ml of a 100 mm tris-hcl buffer solution at ph 8.1? note that the 100 mm refers to the sum of tris and tris-hcl concentrations?

The organs inside the body and how they function together