How many molecules of glucose are present in 1 liter of a 100 mM glucose solution?

• A. 6.02 x 10^23 molecules
• B. 6.02 x 10^22 molecules
• C. 1.00 x 10^23 molecules
• D. 1.00 x 10^24 molecules

Answer: (B)

Verified step by step guidance

1. First, understand that the concentration of the glucose solution is given as 100 mM, which means 100 millimoles per liter.
2. Convert the concentration from millimoles to moles by recognizing that 1 mole = 1000 millimoles. Therefore, 100 mM is equivalent to 0.1 moles per liter.
3. Use Avogadro's number, which is approximately 6.02 x 10^23 molecules per mole, to find the number of molecules in 0.1 moles of glucose.
4. Calculate the number of molecules by multiplying the number of moles (0.1 moles) by Avogadro's number (6.02 x 10^23 molecules/mole).
5. The result of this multiplication will give you the total number of glucose molecules present in 1 liter of the solution.