It is estimated that there are about 10^19 air molecules in a cubic centimeter.
That depends on the pressure and temperature of the air in the cubic meter. Any time you change the pressure or the temperature of a gas, you change the number of molecules in one cubic meter of it.
The answer will depend on the temperature and pressure.
7.854 cubic feet.
None, since there can be no conversion. An ounce is a measure of mass. A cubic inch is a measure of volume. The two measure different things and, according to basic principles of dimensional analysis, conversion from one to the other is not valid. If you are not convinced, consider a cubic inch of air. How many ounces? Next consider a cubic inch of lead. How many ounces?
Sea level at a standard atmospheric pressure of around 14.7 pounds per square inch would have the most air molecules per cubic foot due to the high density of air molecules present near the Earth's surface.
cold air
It is not possible to provide an exact number without knowing more specific information such as the pressure, temperature, and composition of the air. However, on average, there are approximately 2.5 x 10^19 molecules in a cubic centimeter of air at sea level.
When a parachutist is falling with his parachute open, he is hitting air molecules. Imagine he is going at 1 cm/s, he is hitting 1 cubic cm of air molecules per second. If he goes at 2 cm/s, then he is hitting 2 cubic cm of air per second. This increases the air resistance. So as his speed increases, so does the amount of cubic cm of air molecules.
It depends on the material the particles used is and the phase of it (plasma, gas, liquid or solid.)
None, since there can be no conversion. A cubic inch is a measure of volume in 3-dimensional space It is not a measure of weight. According to basic principles of dimensional analysis, conversion from one to the other is not valid.If you are not convinced, consider a cubic inch of air. What weight will it have? Next consider a cubic inch of lead. What weight?
Each cubic meter of air on Earth contains about 10 trillion trillion molecules. This falls to around 4 trillion trillion at the top of Mount Everest. A hundred kilometers up, sometimes considered to be the border of space, there are around a million trillion molecules per cubic meter.