# What is the equivalent pressure of 0.905 atm in units of mmHg?

##### 1 Answer

Jul 18, 2016

#### Answer:

0.905 atm = 688 mmHg

#### Explanation:

Use dimensional analysis.

First determine the relationship between atmospheres and mmHg.

There are two conversation factors:

Multiply the given atm in your question by the conversion factor with 760 mmHg in the numerator.