Question

4215 g of a metallic carbonate was heated in a hard glass tube and carbon dioxide evolved was found to measure 1336 ml at 27 degrre celcius and 700 mm pressure.ehat is the equivalent mass of the metal.

Answer 1

Answer:

Explanation:

Since we know that

PV=RT

PV= w/m RT

700/760 × 1336/1000 = w/44 × 0.0821×300

w= 700×1336×44/760×1000×0.0821×300

w= 2.198g CO2

Since mol. wt. of any metal carbonate = 2E + 60

Hence,

2E + 60/4.215 = 44/2.193

2E + 60 = 44×4.215/2.193

E = 12.188 g. And.