STOCHIOMETRY HELP!!! help me solve this problem? – Khan Academy Help Center

How can we help?

sivathmigak

November 02, 2017 21:47

0

Calculate the mass of CaCo3 that must be decomposed to produce 500.0g of CaO. Equation for the reaction is CaCO3(s) --> CaO(s)+CO2(g)

New post

1 comment

aldajabana5

November 04, 2017 12:34
0

Comment actions Permalink
To solve this you need molar weights for CaO&CaCO3
Mw CaO=56.077g/mol and Mw CaCO3=100.086g/mol
Using stochiometry:
500.0gCaO * (1mol CaO/56.077gCaO) * (1mol CaCO3/1mol CaO) * (100.086g CaCO3/1mol CaCO3)=892.4 g of CaCO3

Post is closed for comments.