Question

Given that the world's oceans comtain 1.35 x 10(to the 9th power)km³ of water, determine the mass in grams. Show how to obtain conversion factors from km³ to m³, report value in proper scientific notation using the correct number of significant figures.

Answer 1

and m³ to cm³

Answer 2

1 km = 1000 m; therefore, 1 km^3 = 1,000^3 m^3
Do the other factors the same way. Look up the density of sea water.
mass = volume x density. Post your work if you get stuck.