posted by Roxanne .
What is the expected mass of anhydrous salt formed after the waters of hydration of CoCl2·6H2O are driven off completely by heating, resulting in a mass loss of 2.000 g water?
What is the colour of lead
CoCl2·6H2O ----> CoCl2(s) + 6H20(g)
****H2O is lost as a gas.
2g of H20*(1 mole/18 g of H2O)=moles of H20
moles of H2O*(1 mole of CoCl2/6 moles of H20)= moles of CoCl2
moles of CoCl2*(129.89g/1 mole)= mass of CoCl2