Question

В смеси NH3 и PH3 мольное соотношение состовляет 1,5:0,5 , разность нейтронов равна 3 моль . Отпределите массу NH3 в начальной смеси ​

Answer 1

все на листике. . . . .. . . .. . .

Answer 2

Molar Ratio and Neutron Difference in NH3 and PH3 Mixture

In the given mixture of NH3 and PH3, the molar ratio is 1.5:0.5, and the difference in the number of neutrons is 3 moles.

Determining the Mass of NH3 in the Initial Mixture

To determine the mass of NH3 in the initial mixture, we can use the molar ratio and the difference in the number of neutrons.

First, let's define the molar masses of NH3 and PH3: - The molar mass of NH3 (Ammonia) is approximately 17.031 g/mol. - The molar mass of PH3 (Phosphine) is approximately 34.004 g/mol.

Now, we can set up a system of equations to solve for the mass of NH3 in the initial mixture.

Let's assume the initial mass of NH3 is represented as x grams. Then, the initial mass of PH3 would be (3 - x) grams, as the difference in the number of neutrons is 3 moles.

Using the molar ratio, we can express the initial mass of PH3 in terms of x: - (3 - x) = 0.5x - Solving for x: - 3 - x = 0.5x - 3 = 1.5x - x = 2 grams

Therefore, the mass of NH3 in the initial mixture is 2 grams.