oil density 0.85 g/mL 3.00 barrels 42.0 gallons 3.8754 L

oil density 0.85 g/mL 3.00 barrels 42.0 gallons 3.8754 L

 

 

A sample of oil has a density of 0.85 g/mL.

What is the mass of 3.00 barrels of oil in kilograms (kg)

if a barrel of oil is 42.0 gallons?

You are given that 1 gallon is equal to 3.8574 L.

 

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▶ 참고: 환산인자 [ https://ywpop.tistory.com/3121 ]

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0.85 g/mL = 0.85 kg/L

 

 

(3.00 barrels) (42.0 gallons / 1 barrel) (3.8574 L / 1 gallon) (0.85 kg / 1 L)

= (3.00) (42.0) (3.8574) (0.85)

= 413 kg

 

 

 

 

또는

1 gallon = 3.78541 L 이므로,

(3.00) (42.0) (3.78541) (0.85) = 405 kg