Answer:
There are 1*10^25 H atoms present
Explanation:
Step 1: data given
Mass of Isopropyl Alcohol (C3H8O) = 125 grams
Molar mass of Isopropyl Alcohol (C3H8O) = 60.1 g/mol
Number of Avogadro = 6.02 *10^23 /mol
Step 2: Calculate moles Isopropyl Alcohol
Calculate moles Isopropyl Alcohol = mass C3H8O / molar mass C3H8O
Calculate moles Isopropyl Alcohol = 125 grams / 60.1 g/mol
Calculate moles Isopropyl Alcohol = 2.08 moles
Step 3: Calculate moles of hydrogen
For 1 mol C3H8O we have 8 moles hydrogen
For 2.08 moles we have 8*2.08 = 16.64 moles hydrogen
Step 4: Calculate amount of hydrogen atoms
Hydorgen atoms = moles H * number of Avogadro
Hydrogen atoms = 16.64 moles * 6.02* 10^23 / mol
Hydorge, atoms = 1*10^25 H atoms
There are 1*10^25 H atoms present
