Find the mass in gram of 0.2 mole of magnesium oxide
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The following diagram shows the conversion between Mole and Mass. Scroll down the page for more examples and solutions.
Mole-mass Calculation
Mole-Mass Equation
mass = number of moles × molar mass
where mass is in grams and the molar mass is in grams per mole.
Moles to Mass Calculation
We can use the above equation to find the mass of a substance when we are given the number of moles of the substance.
Example:
Calculate the mass of (a) 2 moles and (b) 0.25 moles of iron. (Relative atomic mass: Fe = 56)
Solution:
a) mass of 2 moles of iron
= number of moles × molar mass
= 2 × 56
= 112 g
b) mass of 0.25 mole of iron
= number of moles × molar mass
= 0.25 × 56
= 14 g
hope this helps u
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