Answer
a. $$ 653.2 \space torr$$
b.$$ 0.8586 \space atm$$
c.$$ 25.69 \space in Hg$$
d.$$ 12.6 \space psi$$
Work Step by Step
a. $$ 652.5 \space mmHg \times \frac{1 \space torr}{1 \space mmHg}= 653.2 \space torr$$
b.$$ 652.5 \space mmHg \times \frac{1 \space atm}{760 \space mmHg}= 0.8586 \space atm$$
c.$$ 652.5 \space mmHg \times \frac{1 \space atm}{760 \space mmHg}\times \frac{29.92 \space in Hg}{1 \space atm} = 25.69 \space in Hg$$
d.$$ 652.5 \space mmHg \times \frac{1 \space atm}{760 \space mmHg}\times \frac{14.7 \space psi}{1 \space atm} = 12.6 \space psi$$
