calculate the number of H atoms present in .5 mole of C2H5OH ?
18.06
To calculate the number of hydrogen (H) atoms present in 0.5 moles of C2H5OH, we need to consider the molecular formula of ethanol (C2H5OH).
The molecular formula of ethanol (C2H5OH) indicates that there are six hydrogen atoms (H) in each ethanol molecule.
So, to calculate the number of H atoms in 0.5 moles of C2H5OH, we can use the following steps:
Step 1: Determine the number of ethanol molecules in 0.5 moles of C2H5OH.
Number of ethanol molecules = Avogadro's number x Number of moles
Avogadro's number = 6.022 x 10^23 (particles/mol)
Number of moles = 0.5 mol
Therefore, Number of ethanol molecules = 6.022 x 10^23 x 0.5
Step 2: Calculate the number of H atoms in 0.5 moles of C2H5OH.
Number of H atoms = Number of ethanol molecules x Number of H atoms per molecule
Number of H atoms per molecule = 6 H atoms
Therefore, Number of H atoms = 6.022 x 10^23 x 0.5 x 6
Using this formula, we can calculate the number of H atoms in 0.5 moles of C2H5OH.
To calculate the number of H atoms present in 0.5 mole of C2H5OH, you need to know the molecular formula of ethanol (C2H5OH) and the number of hydrogen atoms present in each molecule.
The molecular formula of ethanol (C2H5OH) indicates that there are 2 carbon (C) atoms, 6 hydrogen (H) atoms, and 1 oxygen (O) atom in each molecule.
To calculate the number of H atoms in 0.5 mole of C2H5OH, you can use Avogadro's number, which states that one mole of any substance contains approximately 6.022 x 10^23 particles (atoms, molecules, etc.).
First, find the number of C2H5OH molecules in 0.5 mole using the equation:
Number of molecules = number of moles x Avogadro's number
Number of molecules = 0.5 mole x (6.022 x 10^23 molecules/mole)
Number of molecules = 3.011 x 10^23 molecules
Since there are 6 hydrogen atoms in each molecule of C2H5OH, you can multiply the number of molecules by the number of H atoms per molecule:
Number of H atoms = Number of molecules x Number of H atoms per molecule
Number of H atoms = 3.011 x 10^23 molecules x 6 H atoms/molecule
Number of H atoms = 1.8066 x 10^24 H atoms
Therefore, there are approximately 1.8066 x 10^24 hydrogen atoms in 0.5 mole of C2H5OH.