How many moles of H are present in 1.85 moles of Benadryl?
Express your answer to three significant figures and include the appropriate units
The molecular formula of Benadryl is C17H21NO. Therefore, there are 17 moles of H per mole of Benadryl.
To determine the number of moles of H present in 1.85 moles of Benadryl, we can use the mole ratio:
Number of moles of H = 17 moles H/mole Benadryl * 1.85 moles Benadryl
Number of moles of H = 17 * 1.85 = 31.45
Rounded to three significant figures, the number of moles of H present in 1.85 moles of Benadryl is 31.5 moles of H.
To determine the number of moles of H in Benadryl, we need to look at the molecular formula of Benadryl, which is C17H21NO. From this formula, we can see that there are 17 moles of carbon (C), 21 moles of hydrogen (H), 1 mole of nitrogen (N), and 1 mole of oxygen (O) in each mole of Benadryl.
Since we are given that we have 1.85 moles of Benadryl, we know that there are 1.85 moles of the entire compound. To find the number of moles of hydrogen specifically, we multiply the number of moles of Benadryl by the coefficient of hydrogen in the molecular formula.
The coefficient of hydrogen in the molecular formula of Benadryl is 21. Therefore, the number of moles of hydrogen in 1.85 moles of Benadryl is:
1.85 moles Benadryl × 21 moles H / 1 mole Benadryl = 38.85 moles H
Rounded to three significant figures, the number of moles of hydrogen is 38.9 moles H.
To determine the number of moles of H (hydrogen) present in 1.85 moles of Benadryl, we need to know the chemical formula of Benadryl and the number of hydrogen atoms it contains.
The chemical formula of Benadryl is C17H21NO, which means it contains 17 carbon (C) atoms, 21 hydrogen (H) atoms, 1 nitrogen (N) atom, and 1 oxygen (O) atom.
Since the ratio of H atoms to Benadryl molecules is 21:1, it means that for every 1 mole of Benadryl, there are 21 moles of hydrogen.
Therefore, to calculate the number of moles of H in 1.85 moles of Benadryl, we can multiply the number of moles of Benadryl by the ratio of H atoms to Benadryl molecules:
Number of moles of H = Number of moles of Benadryl × (Number of H atoms / Number of Benadryl molecules)
Number of moles of H = 1.85 moles × (21 moles H / 1 mole Benadryl)
Calculating this, we find:
Number of moles of H = 38.85 moles H
Since we need to express our answer to three significant figures, the final answer is:
Number of moles of H = 38.9 moles H
Therefore, there are 38.9 moles of hydrogen (H) present in 1.85 moles of Benadryl.