how do electrons move around the nucleus of a hydrogen atom

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .

Which compound contain an iron with a 3+ charge

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?