ch 2 and 3 math

Calculate the density of a sample of gas with a mass of 30g and a volume of 7500mL. Express your answer to 3 decimal places.Be sure to include your units. Do not put a spacebetween the unit and the answer. Express your answer to the nearest whole number.Be sure to include your units. Do not put a spacebetween the unit and the answer. Calculate the mass of a solid with a density of 14.2g/cm ^{3} and a volume of 350cm^{3}.Express your answer to the nearest whole number.Be sure to include your units. Do not put a spacebetween the unit and the answer. What is the pressure of an enclosed fluid on which a force of 150N is exerted over an area of 0.001m ^{2}?A hydraulic lift raises a 10000N car on a 0.30m ^{2 }piston. If the compressor piston has a area of 0.015m^{2}, what minimum force is needed to lift the car?Express your answer to the nearest whole number.Be sure to include your units. Do not put a spacebetween the unit and the answer. A piston compresses gas in a 3.5L cylinder to a volume of 2.1L. If the gas pressure is initially 150kPa, what is its pressure after it is compressed? Be sure to include your units. Do not put a space between the unit and the answer. Round your answer to 2 decimal places. A gas with a volume of 4.5L was collected at standard temperature and pressure. What will the volume of the gas be at 30 ^{o}C and 2.2atm? |

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