The pressure 75.0 meters underwater is 837 kpa. what is this pressure in mmhg

                 6278 mmHg

Kilopascal (kPa) and Millimeter of Mercury (mm Hg) are both the units of Pressure. In medical science the pressure is often measured in mm of Hg.

Also,

                 0.133322387415 kPa equals  =  1 mmHg equals

Then,

                       837 kpa will be equal to  =  X mmHg

Solving for X,

                     X =  (837 kPa × 1 mmHg) ÷ 0.133322387415 kPa

                     X  =  6278.0153898 mmHg

Or when rounded to 4 significant numbers,

                     X  =  6278 mmHg

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