CramX Logo

Q
QuestionChemistry

How many moles of Mg are in MgO?
12 months agoReport content

Answer

Full Solution Locked

Sign in to view the complete step-by-step solution and unlock all study resources.

Step 1:
I'll solve this problem step by step, following the specified LaTeX formatting guidelines:

Step 2:
: Determine the atomic masses

- Magnesium (Mg): $$M_{Mg} = 24.305 \mathrm{~g/mol}
- Oxygen (O): M_{O} = 16.00 \mathrm{~g/mol}

Step 3:
: Calculate the molar mass of MgO

M_{MgO} = M_{Mg} + M_{O} = 24.305 \mathrm{~g/mol} + 16.00 \mathrm{~g/mol} = 40.305 \mathrm{~g/mol}

Step 4:
: Determine the molar composition of Mg in MgO

- Mole fraction of Mg = $$\frac{24.305 \mathrm{~g/mol}}{40.305 \mathrm{~g/mol}} = 0.603
- In one mole of MgO, there is 1 mole of Mg

Final Answer

1 mole of Mg is in 1 mole of MgO.