Check Your Understanding
The recommended daily amount of vitamin B3 or niacin, C6NH5 O2, for women who are not pregnant or nursing, is 14 mg. Find the number of molecule of niacin in that amount.
The number of molecules of niacin in
Answer to Problem 2.1CYU
The number of molecules of niacin in
Explanation of Solution
Given:
The amount of vitamin
The number of mole of carbon is
The number of mole of hydrogen is
The number of mole of nitrogen is
The number of mole of oxygen is
Formula used:
The molar mass of niacin is given by
The number of moles is given by
The number of molecule is given by
Calculation:
The molar mass of carbon is
The molar mass of hydrogen is
The molar mass of nitrogen is
The molar mass of oxygen is
The molar mass of niacin is calculated as follows:
The number of moles is calculated as follows:
The Avogadro number is
The number of molecule is calculated as follows:
Conclusion:
Thus, the number of molecules of niacin in
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