How much would be 20.Mg in lbs and how would I put the answer into sig figs and scientific notation?

A pill that is 91.5% aspirin is found to contain 59.99 mg of aspirin. What is the mass of the pill in milligrams?

A chemist adds 800.0 mL of a 50.0 g/dL calcium bromide (CaBr,) solution to a flask. Calculate the mass in kilograms of calcium bromide the chemist has added to the flask. Be sure your answer has the correct number of significant digits. O kg

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A student was given Mg ribbon that's 189 mg and 98.7 mm long. If the ribbon is uniform, what length of Mg ribbon would be needed in order to have a measured volume of 44.4 mL of H2?

The center on the basketball team is 6 ft. 10 in. tall. How tall is the player in millimeters? Your final answer should have 3 sig figs.

1.) Convert 21.37 mL to L. Final answer into scientific notation 2.) How many years in 1 billion (1x10⁹) seconds?

A bar of gold measures 0.127 m x 0.0483 m x 0.0155 m. How many gallons of water have the same mass as this bar? Number Units

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(a) 8.160 m = ________ cm (b) 781 mL = ________ L (c) 4.18 kg = ________ g (d) 27.8 m = ________ km show your work please   2.  The expressions below all mean the same thing when it comes to unit conversions. 1 inch = 2.54 cm                    2.54 cm/1inch                            1inch/2.54 cm   Question 2 options:   True   False