Question

If 0.46g of sodium was reacted with excess water. What volume of hydrogen is produced at r.t.p in the reaction

Answer 1

Answer:

0.86 L

Explanation:

1 mol  of Zn  has mass of  65.39  g.  The amount of  Zn  is  2.5 g  65.39 g/mol  =  0.038 mol .   of  H 2  produced is the same as the amount of  Zn  consumed  ( 0.038 mol )

1 mol  of ideal gas will occupy  22.4 L  at STP.

The  H 2  will occupy  0.038 mol × 22.4 L/mol = 0.86 L .