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Density, significant figures, & dimensional anal ...

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  • 24 + 5.61 (answer with correct SF)
    30.
  • 0.01480 (# of SF?)
    4
  • Density of a 1.1 g gaseous sample with a volume of 3.0 mL
    0.37 g/mL
  • 1.764450 x10^10 (# of SF?)
    7
  • 99.99 - 70.1 (answer with correct SF)
    29.9
  • 10,000 (# of SF?)
    1
  • A pumice rock was weighed at 24 grams and placed into a beaker with 140 mL of water in it. The level rose to 170 mL after the rock was placed into it. Calculate the density
    0.80 g/mL
  • Mass of a copper sample (D = 8.96 g/mL) with a volume of 3.0 mL
    27g
  • 11,000.00 (# of SF?)
    7
  • A chunk of aluminum with a volume of 0.00710 L has an unknown mass. But the density is known to be 2.70 g/mL. Calculate the mass
    19.2 g
  • 11,000. (# of SF?)
    5
  • convert 120,000 ng to kg
    1.2 x 10^-7 kg
  • 1.00790 (# of SF?)
    6
  • Volume of a copper sample (D = 8.96 g/mL) with a mass of 19 grams
    2.1 mL
  • 1,000,000.000. (# of SF?)
    10
  • Convert 47.50 m/s to km/hr
    171.0 km/hr
  • 10 x 2.800 (answer with correct SF)
    30
  • 0.0000001250 (# of SF?)
    4
  • 1.0125000 (# of SF?)
    8
  • Volume of a copper sample (D = 8.96 g/mL) with a mass of 22 grams
    2.5 mL
  • volume of a sphere with a radius of 2.5 cm, in mL
    65 mL
  • 4.7 x 10^-5 mm/ns to km/hr
    170 km/hr
  • convert 1200 micrograms to kg
    1.2 x 10^-6 kg
  • 11,000 (# of SF?)
    2
  • convert 120 mg to kg
    1.2 x 10^-4 kg
  • 6,000 / 20.0 (answer with correct SF)
    300
  • volume of a cylinder with a radius of 3.0 cm & 2.33 cm long, in mL
    66 mL
  • Mass of a copper sample (D = 8.96 g/mL) with a volume of 4.0 mL
    36 g
  • volume of a cube 4.0 cm on each side in mL
    64 mL
  • density of a cube 4.0 cm on each side & weighs 120 grams, in g/mL
    1.9 g/mL
  • A chunk of aluminum weighing 6.5 grams has an unknown volume. But the density is known to be 2.70 g/mL. Calculate the volume
    2.4 mL
  • 15.5486 (# of SF?)
    6
  • Convert 1.77 miles per minute to km/hr [1.609km = 1mile]
    171 km/hr
  • 824/31 (answer with correct SF)
    27
  • Density of a 11.0 g rock with a volume of 5.0 mL
    2.2 g/mL
  • density of a sphere with a radius of 2.5 cm and weighing 70.00 grams, in g/mL
    1.1 g/mL
  • 15 x 20.00 (answer with correct SF)
    3.0 x 10^2
  • A rock was weighed at 75.5 grams and placed into a beaker with 140 mL of water in it. The level rose to 170 mL after the rock was placed into it. Calculate the density
    2.5 g/mL