interconverting atmospheres and torr

Question

The normal maximum pressure exerted by a human heart is 0.158atm. Calculate the normal maximum pressure exerted in mmHg and torr. Round each of your answers to 3 significant digits. 

Answer 1

Conversion factors that are needed (to 3 sig. figs.):

1.00 atm = 760 mm Hg

1.00 atm = 760 torr

1.00 mm Hg = 1.00 torr

0.158 atm x 760 mm Hg / atm = 120. mm Hg

0.158 atm x 760 torr / atm = 120. torr