Unit Conversions
The number of seconds in 12 hours
What is 43,200 seconds?
The number of significant figures in 1.23
What is 3?
0.00010 in scientific notation
What is 1.0 x 10-4?
The molar mass of CO2
What is 44 g/mol?
The frequency of a microwave with a wavelength of 0.032 m
What is 9.375 × 109 Hz?
The mass of a 20.0 cm3 cube of lead (density: 11.342 g/cm3)
What is 227 g?
The number of significant figures in 0.00102
What is 3?
2.3 x 105, written without scientific notation
What is 230,000?
The number of CO2 molecules in 2.00 moles of the gas
What is 1.20 x 1024 molecules?
The wavelength of a radio station that broadcasts at 590 KHz
What is 500 m?
The volume of 14.5 g of propanol (density: 0.828 g/mL)
What is 17.5 mL?
The number of significant figures in 102,200
What is 4?
The number of mL in 0.01 L
What is 10 mL?
The molar mass of Ca(NO3)2
What is 164.088 g/mol?
The wavelength, in m, of the highest frequency audible by humans (2.00 x 104 Hz)
What is 1.725 × 10-2 m?
The weight of a 2.00 kg block of cheese in lbs (1 lb = 454 g)
What is 4.41 lbs?
14.2 / 11, with the correct number of significant figures
What is 1.3?
The number of grams in 25 kg, written in scientific notation
What is 2.5 x 104 g?
The mass, in g, of 2.000 moles of H2O
What is 36.04 g?
The wavelength of green light, which has a frequency of 6.01 x 1014 Hz.
What is 4.99 × 10-7 m?
The density, in g/mL, of a substance that weighs 0.987 kg and has a volume of 4.52 x 102mL
What is 2.18 g/mL?
3.011 + 122.5, to the correct number of significant figures
What is 125.5?
The number of mm in 4.5 x 103 nm, written in scientific notation
What is 4.5 x 10-3 mm?
The number of moles in 3.00 g of NaCl
What is 0.0513 moles?
The frequency of light emitted by a helium laser, which has a wavelength of 633 nm.
What is 4.74 × 1014 Hz ?