How many miles are equal to 145 g of zinc nitrate , Zn(NO3)2

The number of moles of zinc nitrate in 145 g of zinc nitrate, Zn(NO₃)₂, is 0.767 moles

Note: The question made an error of saying miles instead of moles

Explanation:

To determine the number of moles that are in 145 g of zinc nitrate;

First the molar mass of Zinc nitrate is determined, where the atomic masses of the elements in zinc nitrate,Zn(NO₃)₂, are given as: Zn = 65 g/mol, N = 14 g/mol, O = 16 g/mol

Molar mass of zinc nitrate, Zn(NO₃)₂ = 65 + (14 + 16 × 3) × 2 = 189 g/mol

Using the formula, number of moles = mass/molar mass

Number of moles in 145 g of zinc nitrate = 145/189

Number of moles in 145 g of zinc nitrate = 0.767 moles

Therefore, the number of moles of zinc nitrate in 145 g of zinc nitrate, Zn(NO₃)₂, is 0.767 moles

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