Question

Вычислите массу соли, образующейся при взаимодействии 200 г азотной кислоты с достаточным количеством оксида меди(||) Дано и решение..пожалуйста Заранее спасибо :)

Answer 1

Самые очевидные вещи не расписывал. Если есть вопросы -- отвечу.
Решение и ответ на фото.

Answer 2

Calculating the Mass of Salt Formed from the Reaction

To calculate the mass of salt formed from the reaction between 200g of nitric acid and a sufficient quantity of copper(II) oxide, we can use the balanced chemical equation for the reaction and the stoichiometry of the reaction.

The balanced chemical equation for the reaction between nitric acid (HNO3) and copper(II) oxide (CuO) is as follows: 2HNO3 + CuO → Cu(NO3)2 + H2O

From the balanced chemical equation, we can see that 2 moles of nitric acid react with 1 mole of copper(II) oxide to produce 1 mole of copper(II) nitrate and 1 mole of water.

Given: - Mass of nitric acid (HNO3) = 200g

Using the molar mass of nitric acid (HNO3) and the stoichiometry of the reaction, we can calculate the mass of salt formed.

First, let's calculate the molar mass of nitric acid (HNO3): - Molar mass of H = 1.01 g/mol - Molar mass of N = 14.01 g/mol - Molar mass of O = 16.00 g/mol - Molar mass of HNO3 = (1.01 * 1) + (14.01 * 1) + (16.00 * 3) = 63.02 g/mol

Now, we can calculate the number of moles of nitric acid: - Moles of HNO3 = Mass of HNO3 / Molar mass of HNO3 - Moles of HNO3 = 200g / 63.02 g/mol - Moles of HNO3 ≈ 3.17 moles

Since 2 moles of nitric acid react with 1 mole of copper(II) oxide, we can calculate the moles of copper(II) oxide required for the reaction: - Moles of CuO = Moles of HNO3 / 2 - Moles of CuO ≈ 3.17 moles / 2 - Moles of CuO ≈ 1.58 moles

Now, we can calculate the mass of copper(II) oxide required for the reaction: - Mass of CuO = Moles of CuO * Molar mass of CuO - Molar mass of Cu = 63.55 g/mol - Molar mass of O = 16.00 g/mol - Molar mass of CuO = (63.55 * 1) + (16.00 * 1) = 79.55 g/mol - Mass of CuO ≈ 1.58 moles * 79.55 g/mol - Mass of CuO ≈ 125.78g

Therefore, the mass of copper(II) oxide required for the reaction is approximately 125.78g.

Please note that the actual mass of salt formed can be calculated based on the limiting reactant in the reaction and the stoichiometry of the reaction.