Question

Student want to have 3.011 into 10 to the power 23 atoms each of magnesium and carbon elements for this purpose how mtuch magnesium and carbon will he weigh in grams

Answer 1

he has to take 24 g mg and 6 g c

Answer 2

The mass of magnesium and carbon that the student will weigh is 12 grams and 6 grams respectively

Explanation:

We are given:

Atoms of magnesium = $3.011\times 10^{23}$

Atoms of carbon = $3.011\times 10^{23}$

Molar mass of a substance is defined as the mass of 1 mole of a substance.

We know that:

Molar mass of magnesium = 24 g/mol

Molar mass of carbon = 12 g/mol

According to mole concept:

$6.022\times 10^{23}$ number of atoms are present in 1 mole of an element

• For magnesium:

$6.022\times 10^{23}$ number of atoms will have a mass of 24 grams

So, $3.011\times 10^{23}$ number of atoms will have a mass of =  $\frac{24}{6.022\times 10^{23}}\times 3.011\times 10^{23}=12g$

• For carbon:

$6.022\times 10^{23}$ number of atoms will have a mass of 24 grams

So, $3.011\times 10^{23}$ number of atoms will have a mass of =  $\frac{12}{6.022\times 10^{23}}\times 3.011\times 10^{23}=6g$

Learn more about mole concept:

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