Question

Ce cantitate de H2Co3 cuprinde aceeasi cantitate de oxigen ca aceea cuprinsa in 4 moli Al2O3?

Answer 1

MAl2O3=2.27+3.16=102

102 g Al2O3-------1 mol

xg--------------------4 moli

x=102.4=408 g Al2 O3

102g Al2O3-------------48gO

408 g-----------------------Y

Y=408.48:102=192gO

MH2CO3=2+12+3.16=62

62 g H2CO3-----------48 g O

Z----------------------------192 g O

Z=62.192:48=248 g H2CO3