Respuesta :
Answer:
31 grams per equivalent.
Explanation:
The valence of carbonic acid (H2CO3) is two (there are two replaceable hydrogen ions). The molecular weight of H2CO3 is: 2*1 + 12 + 3*16 = 62 g/mol. Therefore, the equivalent weight is: 62/2 = 31 grams per equivalent.
