In medicine, a 10% (by weight) solution of ammonia in water is used, which is called ammonia.

In medicine, a 10% (by weight) solution of ammonia in water is used, which is called ammonia. How many grams of ammonia and milliliters of water is required to prepare 120 g of ammonia? How much will the ammonia take?

We write the equation: NH3 + H2O = NH4OH – nashat. alcohol.
To begin with, using the proportion, we find how much ammonia is needed for 120 grams of ammonia.
0.1 = x / 120
x = 0.1 * 120 = 12 g
That is, you need 12 g of pure ammonia
Now the water:
m of water = 120 g of solution – 12 g of ammonia = 108 g of water.
V (NH3) n.o .:
12 g – x
17 g / mol – 22.4 l / mol
x = 12 * 22.4 / 17 = 15.81 l