Question

How many moles (of molecules or formula units) are in each samples?

23.1 kg kg  Fe (NO3) 2

Express your answer to three significant figures.

0.2346 g C8H18

Express your answer to four significant figures.

0.2346 g C8H18

Express your answer to four significant figures.

162 kg CaO

Express your answer to three significant figures.

Answer 1

no. of moles in

a) 23.1 kg kg Fe (NO₃)₂

are 128.436

b) 0.2346 g C₈H₁₈

are 0.0020

c) 0.2346 g C8H18

are 0.0020

d) 162 kg CaO

are 1105.614