Question

calculate the no of moles If the given mass of mg2 is 36 g​

Answer 1

Answer:

2Mg+O  

2

​  

→2MgO

1 mole of O  

2

​  

 is required for 2 Moles of Mg

5 Moles of O  

2

​  

is required for 10 Moles of Mg

So , 32×5g of O  

2

​  

 is required = 160 g  

160 g of O  

2

​  

 is required to combust 10 Moles of Mg

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Answer 2

Answer:

Number of moles(n) = Given weight(W)/Molecular Mass(M)

n = W/M

n= 36/48

n= 0.75moles

Hope it helps you!