Question

Вычеслить массу нитрата азота который образуется при взаимодействии 600г 30%азотной кислоты с оксидом магния. ПОМОГИТЕ ПОЖАЛУЙСТА, СРОЧНО НУЖНО)

Answer 1

Решение в фото ниже.......

Answer 2

Calculation of the Mass of Nitrate of Nitrogen

To calculate the mass of nitrate of nitrogen formed during the reaction between 600g of 30% nitric acid and magnesium oxide, we need to follow these steps:

Step 1: Determine the molar mass of nitric acid (HNO3) and magnesium oxide (MgO). Step 2: Calculate the number of moles of nitric acid and magnesium oxide. Step 3: Identify the balanced chemical equation for the reaction between nitric acid and magnesium oxide. Step 4: Use the stoichiometry of the balanced equation to determine the number of moles of nitrate of nitrogen formed. Step 5: Convert the number of moles of nitrate of nitrogen to grams using its molar mass.

Let's go through each step in detail.

Step 1: Determine the Molar Mass

The molar mass of a substance is the mass of one mole of that substance. It is calculated by summing the atomic masses of all the atoms in the chemical formula.

The molar mass of nitric acid (HNO3) can be calculated as follows: - Hydrogen (H) has an atomic mass of 1.01 g/mol. - Nitrogen (N) has an atomic mass of 14.01 g/mol. - Oxygen (O) has an atomic mass of 16.00 g/mol.

Therefore, the molar mass of nitric acid (HNO3) is: (1 * 1.01) + (1 * 14.01) + (3 * 16.00) = 63.01 g/mol.

The molar mass of magnesium oxide (MgO) can be calculated as follows: - Magnesium (Mg) has an atomic mass of 24.31 g/mol. - Oxygen (O) has an atomic mass of 16.00 g/mol.

Therefore, the molar mass of magnesium oxide (MgO) is: 24.31 + 16.00 = 40.31 g/mol.

Step 2: Calculate the Number of Moles

To calculate the number of moles of a substance, we can use the formula:

Number of moles = Mass / Molar mass.

For the given quantities: - Mass of nitric acid = 600g. - Concentration of nitric acid = 30%.

To calculate the mass of nitric acid in the solution, we multiply the total mass by the concentration: Mass of nitric acid = 600g * (30/100) = 180g.

Using the formula, we can calculate the number of moles of nitric acid: Number of moles of nitric acid = 180g / 63.01 g/mol.

Similarly, the number of moles of magnesium oxide can be calculated using its mass: Mass of magnesium oxide = ? Number of moles of magnesium oxide = Mass of magnesium oxide / 40.31 g/mol.

Unfortunately, the mass of magnesium oxide is not provided in the question. Please provide the mass of magnesium oxide so that we can proceed with the calculation.