When converting between units using dimensional analysis units that appear on the top of one factor and the bottom of another A. Are squared
B. Cancel
C. Are unaffected

PLEASE HELP PLEASE

You wish to prepare a buffer consisting of acetic acid and sodium acetate with a total acetic acetate plus acetate concentration of 250 mm and a ph of 5. what concentrations of acetic acid and sodium acetate should you use

Use the periodic table to determine how many grams of oxygen would be required to react completely with 859.0 g c2h2

Me soon im confused much mass would a mole of hydrogen molecules contain? recall that hydrogen is diatomic. g/mol