If I count out Avogadro's number if CO2 molecules how much will my piles of molecules weigh?
Can someone show me how to get the answer. I know the answer is 44g
1 mol CO2 has a mass (molar mass) of 44 g. right? 1 mol CO2 contains 6.02E23 molecules. right? ergo
To calculate the weight of a certain number of CO2 molecules, you need to understand Avogadro's number and the molar mass of CO2.
1. Start with Avogadro's number (6.022x10^23), which represents the number of particles in one mole of any substance. This value is constant and is widely used in chemistry.
2. Determine the molar mass of CO2 (carbon dioxide). Carbon has an atomic mass of approximately 12.01 g/mol, while oxygen has an atomic mass of about 16.00 g/mol. Multiply each atomic mass by the number of atoms in one molecule of CO2 (1 carbon, 2 oxygen).
Carbon: 1 x 12.01 g/mol = 12.01 g/mol
Oxygen: 2 x 16.00 g/mol = 32.00 g/mol
Add the masses together: 12.01 g/mol + 32.00 g/mol = 44.01 g/mol
The molar mass of CO2 is approximately 44.01 g/mol.
3. Finally, use the molar mass to determine the weight of a certain number of CO2 molecules. Divide the given number of molecules by Avogadro's number to find the number of moles of CO2. Then, multiply the moles by the molar mass of CO2 to obtain the weight.
Weight (g) = (Number of CO2 molecules) / (6.022 x 10^23 molecules/mol) * (44.01 g/mol)
Let's say you have 1.0 x 10^24 CO2 molecules:
Weight (g) = (1.0 x 10^24 molecules) / (6.022 x 10^23 molecules/mol) * (44.01 g/mol)
= 14.6 g
Therefore, if you count out Avogadro's number of CO2 molecules, the weight will be approximately 44 g.