Question: Find the mass in grams of : 5.24 x 10^-13 mol C20H42

can someone give me a step by step of this? all i really understand is the molar mass (my professor wants us to round the mass to the nearest whole number so: 282) what do I do after that? I am very lost

Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils.the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table

Many free radicals combine to form molecules that do not contain any unpaired electrons. the driving force for the radical–radical combination reaction is the formation of a new electron‑pair bond. consider the chemical equation. n(g)+no(g)⟶nno(g) n(g)+no(g)⟶nno(g) write lewis formulas for the reactant and product species in the chemical equation. include nonbonding electrons. n(g)n(g) select draw rings more erase select draw rings more erase select draw rings more erase n no(g)