What is the density of carbon dioxide gas at -25.2°c and 98.0 kpa? a. 0.232 g/l ob. 0.279 g/l oc. 0.994 g/l od. 1.74 g/l o e. 2.09 g/l

E.

Explanation:

From the ideal gasses equation we have:

PV=nRT

where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature.

The number of moles is also expressed as:

If replacing this in the ideal gasses equation we have:

If we pass V to divide, we have:

And the density d = , so replacing, we have:

Solving for d, we have:

Now we have to be sure that we have the correct units, so we need to convert the units for pressure and temperature:

-Convert P=98kPa to atm

-Convert T=-25.2°C to K

Finally we can replace the values in the equation:

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

hope this : )