Question

Calculate the number of ions number of oxygen atom and total charge in 3 grams of carbonate ion

Answer 1

Explanation:

Molar mass of carbonate ions = 60 g/mol

mass of carbonate ions = 3 g

Moles of carbonate ion  =$\frac{3 g}{60 g/mol}=0.05 mol$

Number of ions =$0.05\times 6.022\times 10^{23}=3.011\times 10^{22} ions$

In 1 ion there are 3 atoms of oxygen

Number of oxygen atoms =$3\times 3.011\times 10^{22} = 9.033\times 10^{22} atoms$

Charge in 1 ion = 2-

Charge on  $3.011\times 10^{22} ions$ of carbonate:

$(2-)\times 3.011\times 10^{22} ions=-6.022\times 10^{22}$

Answer 2

Answer:

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