Answer to Question #129111 in General Chemistry for Nicole Xie

Question

Calculate the amount of substance in each of the following samples: T/I
(a) 3.01 x 1023 atoms of copper
(b) 6.02 x 1025molecules of hydrogen chloride (in hydrochloric acid)
(c) 42.0 g of calcium carbonate, CaCO3 (in shellfish)

Answer 1

amount of substance

a) 0,5

b) 100

c) 0,42