Respuesta :

Neetoo

Answer:

Mass = 168.3 g  

Explanation:

Given data:

Number of moles of CaCO₃  = 3 mol

Mass of CaO produced = ?

Solution:

Chemical equation:

CaCO₃  → CaO + CO₂

Now we will compare the moles of CaCO₃ with CaO .

                              CaCO₃       :       CaO

                                    1            ;         1

                                    3            :         3

Mass of CaO :

Mass = number of moles × molar mass

Mass = 3 mol×56.1 g/mol

Mass = 168.3 g  

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