Pressure is defined as force per unit of surface.
In this case, if you have a mass of 1034 g, then the force with which it will push down on the unit surface, i.e. its weight, will be equal to
You need to convert the mass from grams to kilograms
This means that the force will be
To get to Pascal, you need to convert square centimeters to square meters
Therefore, the pressure exerted by air at sea level is