Method of making 1M ammonium acetate
To make 1M ammonium acetate solution, first of all, you need to know the required reagents and utensils. For reagents, ammonium acetate solids are also; utensils include balances, volumetric bottles, glass rods, beakers, measuring cylinders, etc.

First, accurately weigh an appropriate amount of ammonium acetate solids with a balance. According to stoichiometry, the molar mass of ammonium acetate ($CH_3COONH_4 $) is about 77.08g/mol. If you want to make 1L 1M ammonium acetate solution, you should weigh 77.08g ammonium acetate solids. When weighing, be sure to level the balance, pad filter paper or use a weighing dish to prevent drugs from corroding the balance.

Weigh the ammonium acetate solid in a clean beaker, measure an appropriate amount of distilled water with a measuring cylinder, and slowly inject it into the beaker. At the same time, gently stir with a glass rod to help it dissolve. This process requires patience to ensure that the ammonium acetate is completely dissolved in the water.

After the ammonium acetate has fully dissolved, carefully drain the solution along the glass rod and inject it into the appropriate size volumetric flask. After filling, rinse the beaker and glass rod 2-3 times with a small amount of distilled water. The rinsing liquid is also injected into the volumetric flask to ensure that the solute is not missed.

Then, add distilled water to the volumetric flask close to the scale line 1-2cm, and use a rubber head dropper to add water dropwise until the concave surface of the solution is tangent to the scale line. This step requires careful operation, looking straight at the scale line to ensure the accurate volume of the solution.

Finally, cover the stopper of the volumetric bottle, turn it upside down and shake it well repeatedly to make the concentration of the solution uniform. In this way, the 1M ammonium acetate solution is prepared and can be used for subsequent experiments.