Ethyl alcohol which is prent in many beverages molecular formular C2H6O.If 9.2g of ethyl alcohol are available.Calculate number of molecular of ethyl alcohol 9.2g of ethyl alcohol.
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THE MASS IS 90080
To calculate the number of molecules of ethyl alcohol, we need to use the concept of moles. The formula to calculate the number of moles is:
Moles = Mass / Molar Mass
First, we need to find the molar mass of ethyl alcohol (C2H6O). To do this, we will calculate the sum of the atomic masses of carbon (C), hydrogen (H), and oxygen (O).
Carbon (C) has an atomic mass of 12.01 g/mol.
Hydrogen (H) has an atomic mass of 1.008 g/mol.
Oxygen (O) has an atomic mass of 16.00 g/mol.
Molar mass of C2H6O = (2 * C) + (6 * H) + (1 * O)
= (2 * 12.01) + (6 * 1.008) + (1 * 16.00)
= 24.02 + 6.048 + 16.00
= 46.068 g/mol (rounded to four decimal places)
Now, we can calculate the number of moles of ethyl alcohol:
Moles = Mass / Molar Mass
= 9.2 g / 46.068 g/mol
≈ 0.2000 moles (rounded to four decimal places)
Finally, using Avogadro's number, which states that there are 6.022 x 10^23 molecules in 1 mole of a substance, we can find the number of molecules:
Number of molecules = Moles * Avogadro's number
= 0.2000 moles * (6.022 x 10^23)
≈ 1.2044 x 10^23 molecules (rounded to four decimal places)
Therefore, there are approximately 1.2044 x 10^23 molecules of ethyl alcohol in 9.2g.