Does anybody want to have a conversation, i'm bored

0.2348 grams of pbcl2 used to form 44.0 ml of solution.

Imagine that twenty i. u.’s of enzyme z were catalyzing the above reaction for one minute, under vmaxconditions, in a 3.00 ml assay volume. the assay is buffered with 20 mm phosphate buffer, ph 7.60. what will the ph be at the end of that one minute?

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?