Respuesta :

safax

"1 x Ca = 1 x 40 = 40 
1 x C = 1 x 12 = 12 
3 x O = 3 x 16 = 48 

40 + 12 + 48 = 100 (Mr of CaCO3) 

moles = mass / Mr 
mass = moles x Mr 
mass = 1 mole x 100 = 100grams."