DESCRIBE BRIEFLY HOW U WOULD PREPARE ONE LITER OF 0.1 NaOH SOLUTION
Weigh out 1 mole NaOH (moles = grams/molar mass),place in a 1 L volumetric flask, dissolve completely in a little water, make to the mark, mix thoroughly.
I misread the decimal point. You want 0.1M soln so weigh out 0.1 mole NaOH. The remainder of the instructions are ok.
To prepare one liter of 0.1 M NaOH (sodium hydroxide) solution, you would need to follow these steps:
1. Determine the molar mass of NaOH: Sodium (Na) has an atomic mass of 22.99 g/mol, Oxygen (O) has an atomic mass of 16.00 g/mol, and Hydrogen (H) has an atomic mass of 1.01 g/mol. Adding these values together, the molar mass of NaOH is 22.99 + 16.00 + 1.01 = 40.00 g/mol.
2. Calculate the amount of NaOH required: By using the equation: Molarity (M) = moles (mol) / volume (L), we can rearrange it to calculate the moles needed. Molarity (M) = 0.1 M and volume (L) = 1 L. Rearranging the equation, we have moles (mol) = Molarity (M) x volume (L) = 0.1 mol.
3. Convert the moles of NaOH to grams: To convert moles to grams, multiply the moles by the molar mass. In this case, 0.1 mol x 40.00 g/mol = 4.00 grams of NaOH.
4. Weigh out 4.00 grams of NaOH: Use a balance to measure out precisely 4.00 grams of NaOH. Ensure accurate measurements for a precise solution.
5. Dissolve NaOH in distilled water: Add the measured NaOH to a beaker containing approximately 1 liter of distilled water. Stir the solution gently until the NaOH dissolves completely. It is essential to use distilled water to avoid any impurities.
6. Transfer the solution to a volumetric flask: If necessary, transfer the solution to a volumetric flask that has a capacity of at least 1 liter. This flask will maintain the solution's accurate volume.
7. Dilute to the final volume: If you have transferred the solution to a volumetric flask, add distilled water to the flask until the solution reaches the 1-liter mark. Gently mix the contents to ensure uniformity.
You have now prepared one liter of 0.1 M NaOH solution. Remember to label the container with the concentration and date of preparation for future reference.