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How many grams of n2h4 will be consumed by 23 g of n2o4

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?

An atom that gains or loses one or more electrons is called a(n)