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42 solutions

Metric Prefixes

Q. The enthalpy of combustion of benzoic acid is –26.4 kJ/g. What is the enthalpy of combustion expressed in joules per kilogram?

Solved • Oct 1, 2019

Metric Prefixes

Q. The Earth is 9.3 X 10^7 miles from the Sun. How long does it take the Sun's visible light to reach us (in minutes)? [c=3.00 X 10^8 m/s; 1 mile = 1.61km ]

Solved • Sep 23, 2019

Metric Prefixes

Q. Convert 87.00 micrograms to grams.

Solved • Sep 22, 2019

Metric Prefixes

Q. a 20.0 ml sample of glycerol has a mass of 25.2 grams. What is the mass, in kilograms, of a 0.57 sample of glycerol

Solved • Sep 15, 2019

Metric Prefixes

Q. An arctic ecologist measures the thickness of an ice floe. The thickness is 0.254 m. What is the thickness in centimeters? Write your answer as a decimal.

Solved • Sep 13, 2019

Metric Prefixes

Q. A nurse measures the weight of his patient's medicine. The weight is 0.0068 g. What is the weight in milligrams? Write your answer as a decimal.

Solved • Sep 13, 2019

Metric Prefixes

Q. An electrical engineer measures the frequency of a satellite radio transmission. The frequency is 289 GHz. What is the frequency in hertz? Write your answer in scientific notation.

Solved • Sep 13, 2019