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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/cm3 and a volume of 350cm3. 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 0.001m2? A hydraulic lift raises a 10000N car on a 0.30m2 piston. If the compressor piston has a area of 0.015m2, 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? Express your answer to the nearest whole number.Be sure to include your units. Do not put a spacebetween the unit and the answer. 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 30oC and 2.2atm? |