Social Sciences, asked by king7780, 10 months ago

Find the mass in gram of 0.2 mole of magnesium oxide

Answers

Answered by sakshikalbi
1

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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