How many grams of hydrochloric acid will react completely with a block of gold that is 3.2 cm by 3.8 cm by 2.8 cm, if the density of gold is 19.3 g/ml? show all steps of your calculation as well as the final answer. au+hcl -> aucl2+h2

243.50 grams of hydrochloric acid will react completely with a block of gold.

Explanation:

Mass of gold = m

Length of gold block = l =  3.2 cm

Breadth of gold block = b = 3.8 cm

height of gold block = h = 2.8 cm

Volume of the gold = V = l × b × h = 3.2 cm × 3.8 × cm × 2.8 cm

V = ()

Density of gold = d = 19.3 g/ml

Moles of gold =

According to recation, 1 mole gold reacts with 2 moles of HCl .Then 3.3357 moles of gold will ":

of HCl

Mass of 6.6713 moles of HCl =

243.50 grams of hydrochloric acid will react completely with a block of gold.