Question

Q. 23 Calculate the number of moles of magnesium present in a magnesium
ribbon weighing 12g. Molar atomic mass of magnesium is 24 g?(Ncert exemplar class 9)​

Answer 1

Explanation:

hope this will help you

Answer 2

$\bigstar\:\tt\underline\blue{QUESTION}\:\bigstar$

• Calculate the number of moles of magnesium present in a magnesium
• ribbon weighing 12g. Molar atomic mass of magnesium is 24 g?

$\bigstar\:{\orange{\underline{\red{\mathbf{Answer}}}}}\:\bigstar$

✍ Given that ✍

• Mass of ribbon = 12 g
• Molar mass of Mg = 24 g/mol

❖ Using the formula ❖

➪ Number of moles = ω/M

➪ Number of moles = 12/24

➪Number of moles = 0.5 mol