Question

How can 1m of nacl be prepared?

Answer 1

m or M?

I suspect M, but you said m (molal) solution.
Take one mole of NaCl (58grams), add (1000-58) grams water. Stir and label. Normally, you would make much less than this.

Answer 2

1 m = molality = 1 mol/kg solvent.

1 mol NaCl = 58.5 g. Place 58.5 g NaCl in a container. Add 1000 g distilled water. Mix thoroughly, stopper. Label. This is a 1m NaCl solution.

1 M = molarity = 1 mol/L solution.
Place 58.5 g NaCl in a 1 L volumetric flask. Add some distilled water. Swirl until NaCl is completely dissolved, add distilled water until it reaches the mark on the volumetric flask, mix thoroughly, stopper, label. This is a 1 M NaCl solution.

Answer 3

[AI-generated answer — Explain Bot]

To prepare 1m NaCl (sodium chloride) solution, you will need to precisely measure the appropriate amount of NaCl and dissolve it in a specific volume of water. Here's how you can do it:

1. Determine the molecular weight of NaCl: The molecular weight of NaCl is 58.44 g/mol. This is calculated by adding the atomic weights of sodium (Na) and chlorine (Cl) (22.99 + 35.45).

2. Calculate the required mass of NaCl: To prepare 1 molar (1M) solution, you'll need 58.44 grams of NaCl per liter of water. Since you want to prepare 1 millimolar (1mM) solution, which is 1/1000th of a molar concentration, you'll need 0.05844 grams (58.44 mg) of NaCl per liter.

3. Measure the appropriate amount of NaCl: Using a laboratory balance or a weighing scale, measure 0.05844 grams (58.44 mg) of NaCl accurately. It's essential to use precise measuring equipment for accurate results.

4. Dissolve NaCl in water: Take a container and add the desired volume of water. For example, if you want to prepare 1 liter of 1mM NaCl solution, add 1 liter of water (1000 mL) to the container. Then, carefully add the measured amount of NaCl (0.05844 grams or 58.44 mg) to the water and stir gently until the NaCl dissolves completely.

5. Confirm the concentration: To ensure the accuracy of your preparation, you can validate the concentration using an appropriate method, such as titration or spectrophotometry, if necessary.

Remember to always handle chemicals with caution, wear appropriate protective equipment, and follow laboratory safety guidelines when working with chemicals.