If 1.00 atm = 760 mmHg, determine how many atm is 956.2 mmHg. (follow sig figs and only enter numbers)

Answer 1

Hi Mariana, in this problem you are dealing with unit conversions. Remember that you always want to make sure your units cancel out.

So we start with 956.2mmHg * (1atm/760mmHg) will allow us to cancel out the mmHg since they are on opposite sides of the fraction.

We are left with 1.258 atm.

Since 760mmHg is an exact number, we use 1.00's 3 sig figs for our answer.

Therefore, the answer is 1.26atm.