How many atoms of carbon are present in 2.592 moles of carbon tetrabromide?

Please write your answer in scientific notation such that 1x 104 is written as 164.

 

a. How many ATOMS of carbon are present in 3.13 moles of carbon tetrabromide ? ------ atoms of carbon.

b. How many MOLES of bromine are present in 1.60×1021 molecules of carbon tetrabromide ? ----- moles of bromine.

c. How many ATOMS of sulfur are present in 3.88 moles of sulfur dioxide ? ------ atoms of sulfur.

d. How many MOLES of oxygen are present in 6.72×10²² molecules of sulfur dioxide ? ------- moles of oxygen.

e. How many MOLECULES of carbon tetrachloride are present in 4.93 moles of this compound ? ----- molecules.

f. How many MOLES of carbon tetrachloride are present in 4.53×10²² molecules of this compound ? ----- moles.

Answer the following questions about the compound C2H8N2. Reportyour answers to parts (a)-(c) to 2 decimal places.

(a) What is the molar mass (g/mol).
(b) What is the percentage carbon?
(c) What is the percentage hydrogen?
(d) How many atoms of carbon are contained in 1.00 g of thecompound? Report your answer

in scientific notation to 3 significant figures.