First, we need to find the molar mass of C2H4. The molar mass of carbon (C) is approximately 12.01 g/mol and the molar mass of hydrogen (H) is approximately 1.01 g/mol. Therefore, the molar mass of C2H4 is (2*12.01 g/mol) + (4*1.01 g/mol) = 28.06 g/mol.

Next, we need to find the number of moles in 2.8 g of C2H4. We can do this by dividing the mass of the sample by the molar mass of C2H4. So, 2.8 g / 28.06 g/mol = 0.1 mol.

Since there are 2 moles of carbon atoms in each mole of C2H4, there are 2 * 0.1 mol = 0.2 mol of carbon atoms in 2.8 g of C2H4.

Finally, we need to convert moles to atoms. We can do this by multiplying the number of moles by Avogadro's number, which is approximately 6.022 x 10^23 atoms/mol. So, 0.2 mol * 6.022 x 10^23 atoms/mol = 1.2044 x 10^23 atoms.

So, there are approximately 1.2044 x 10^23 carbon atoms in 2.8 g of C2H4.

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First, we need to find the molar mass of C2H4. The molar mass of carbon (C) is approximately 12.01 g/mol and the molar mass of hydrogen (H) is approximately 1.01 g/mol. Therefore, the molar mass of C2H4 is (2*12.01 g/mol) + (4*1.01 g/mol) = 28.06 g/mol.

Next, we need to find the number of moles in 2.8 g of C2H4. We can do this by dividing the mass of the sample by the molar mass of C2H4. So, 2.8 g / 28.06 g/mol = 0.1 mol.

Since there are 2 moles of carbon atoms in each mole of C2H4, there are 2 * 0.1 mol = 0.2 mol of carbon atoms in 2.8 g of C2H4.

Finally, we need to convert moles to atoms. We can do this by multiplying the number of moles by Avogadro's number, which is approximately 6.022 x 10^23 atoms/mol. So, 0.2 mol * 6.022 x 10^23 atoms/mol = 1.2044 x 10^23 atoms.

So, there are approximately 1.2044 x 10^23 carbon atoms in 2.8 g of C2H4.

Knowee AI · Accepted Answer

First, we need to find the molar mass of C2H4. The molar mass of carbon (C) is approximately 12.01 g/mol and the molar mass of hydrogen (H) is approximately 1.01 g/mol. Therefore, the molar mass of C2H4 is (2*12.01 g/mol) + (4*1.01 g/mol) = 28.06 g/mol.

Next, we need to find the number of moles in 2.8 g of C2H4. We can do this by dividing the mass of the sample by the molar mass of C2H4. So, 2.8 g / 28.06 g/mol = 0.1 mol.

Since there are 2 moles of carbon atoms in each mole of C2H4, there are 2 * 0.1 mol = 0.2 mol of carbon atoms in 2.8 g of C2H4.

Finally, we need to convert moles to atoms. We can do this by multiplying the number of moles by Avogadro's number, which is approximately 6.022 x 10^23 atoms/mol. So, 0.2 mol * 6.022 x 10^23 atoms/mol = 1.2044 x 10^23 atoms.

So, there are approximately 1.2044 x 10^23 carbon atoms in 2.8 g of C2H4.

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