Question

(4) 3.02 x 10-6 m 19. If a = 1.60 * 10-6 and b = 6.40 x 10-3. then the ratio of a? and b2 is (1) 6.25 * 10 (2) 6.25 * 102 (3) 6.2 x 10 (4) 6.2 * 102​

Answer 1

In this reaction, C is the limiting reagent.

The mass of B reacted =4.8−2.88−0.72=1.2 g.

Thus, 1.2 g of B corresponds to 0.024 moles.

The molar mass of B is

0.024

1.2

=50 amu.