Question

How much carbon is present in two miles of ZnCO3?​

Answer 1

Answer:

30 percent

Explanation:

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Answer 2

24 g of Carbon is present in 2 moles of $ZnCO_{3}$

Step-by-step Explanation:

Given: 2 moles of $ZnCO_{3}$

To be found: Amount of Carbon in it

What is a mole?

• 1 mole of any substance contains $6.023 * 10^{23}$ ions, molecules or atoms. This number is called the Avogadro's number.
• 1 mole of an element has a mass equal to its Molecular mass

In this question,

number of moles of $ZnCO_{3}$ = 2

1 molecule of $ZnCO_{3}$ has 1 atom of carbon,

⇒ 1 mole of $ZnCO_{3}$ will have 1 mole of carbon atoms

⇒ 2 moles of $ZnCO_{3}$ will have 2 moles of carbon atoms.

Now, we know that 1 mole of Carbon weighs= Molecular mass of Carbon = 12 g  (from periodic table)

⇒2 moles of Carbon weighs= $12*2 = 24$ g

So, 24 g of Carbon is present in 2 moles of $ZnCO_{3}$