how do you convert 50 microliters of 2 butanol to moles?
50 uL x (1 mL/1000 uL) x density in g/mL x (1 mol/molar mass butanol) = ? mols
would you do the same thing to find out how many moles of 50 microliters of 18M sulferic acid?
Your question is poorly worded? Do you want to find moles in 50 uL of 18M H2SO4? If so, I would not do it the same way. If the butanol problem you must first fiknd grams which is why I used density. In this problem, you alread have M and L and that is mols.
moles = M x L
All you need to do is to convert 50 uL to L. 50 uL x (1 L/1,000,000 uL) = ?L, then
mols = M x L.
To convert a given volume of a substance to moles, you need two main pieces of information: the molar mass of the substance and the density or concentration of the substance.
1. Determine the molar mass of 2-butanol (C4H10O):
- Atomic mass of carbon (C) = 12.01 g/mol
- Atomic mass of hydrogen (H) = 1.01 g/mol
- Atomic mass of oxygen (O) = 16.00 g/mol
- Molar mass of 2-butanol = (4 × molar mass of carbon) + (10 × molar mass of hydrogen) + molar mass of oxygen
2. Calculate the molar mass of 2-butanol:
- Molar mass = (4 × 12.01 g/mol) + (10 × 1.01 g/mol) + 16.00 g/mol
Please note that the molar mass of 2-butanol is 74.12 g/mol.
3. Convert the given volume (50 microliters) to liters:
- 1 microliter (µL) = 1 × 10^-6 liters (L)
- Volume in liters = 50 µL × (1 × 10^-6 L/1 µL)
4. Calculate the number of moles of 2-butanol using the concentration or density:
- Density/concentration is the amount of substance per unit volume.
- If you know the density/concentration of 2-butanol, multiply it by the volume in liters to get the mass.
- Mass of 2-butanol = Volume in liters × Density/concentration
5. Convert the mass of 2-butanol to moles using the molar mass:
- Moles of 2-butanol = Mass of 2-butanol / Molar mass of 2-butanol
By using the provided information about the molar mass of 2-butanol and the volume, you can calculate the number of moles of 2-butanol.