The density of dry air is 1.12x10-3

A) what is the volume of air in acubic meters will have a mass of 1.00kg?
B) Express this density as lb/ft3

1.12x10-3 what?

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The density of dry air is approximately 1.12x10-3. This means that for every cubic meter of air, it weighs about 1.12x10-3 kilograms. A) To calculate the volume of air that will have a mass of 1.00kg, we can use the density formula: Density = Mass / Volume. Rearranging the formula, we find Volume = Mass / Density. Plugging in the values, Volume = 1.00kg / 1.12x10-3 = 892.857 cubic meters. Therefore, a mass of 1.00kg of air occupies a volume of approximately 892.857 cubic meters. B) If we want to express the density of air in pounds per cubic foot (lb/ft3), we need to convert the units. Firstly, we need to convert the mass from kilograms to pounds. One kilogram is approximately 2.20462 pounds. So, 1.00kg of air is about 2.20462 pounds of air. Next, we need to convert the volume from cubic meters to cubic feet. One cubic meter is equal to approximately 35.3147 cubic feet. Hence, 892.857 cubic meters of air is approximately 892.857 x 35.3147 = 31,536.943 cubic feet. Finally, we divide the mass in pounds by the volume in cubic feet to find the density in lb/ft3. The density of dry air is approximately 2.20462 pounds/31,536.943 cubic feet, which simplifies to 7.0064x10-5 lb/ft3. Therefore, the density of air can be expressed as approximately 7.0064x10-5 lb/ft3.