Question

ПОМОГИТЕ ПОЖАЛУЙСТА РЕШИТЬ ЗАДАЧКУ!!! на завод привезли 50 тонн фосфорита, содержащего 35% примесий , определить массу фосфата кальция са3(po4)Только главное с оформлением

Answer 1

смотри на картинке сверху

Answer 2

Problem Analysis

To solve this problem, we need to determine the mass of calcium phosphate (Ca3(PO4)2) in 50 tons of phosphorite that contains 35% impurities. We can break down the problem into the following steps: 1. Calculate the mass of impurities in the phosphorite. 2. Calculate the mass of pure phosphorite. 3. Calculate the mass of calcium phosphate in the pure phosphorite.

Solution

1. Calculate the mass of impurities in the phosphorite: - The phosphorite contains 35% impurities. - Therefore, the mass of impurities in the phosphorite is 35% of 50 tons. - Mass of impurities = 35% of 50 tons.

2. Calculate the mass of pure phosphorite: - The phosphorite is a mixture of pure phosphorite and impurities. - The mass of pure phosphorite can be calculated by subtracting the mass of impurities from the total mass of the phosphorite. - Mass of pure phosphorite = Total mass of phosphorite - Mass of impurities.

3. Calculate the mass of calcium phosphate in the pure phosphorite: - Calcium phosphate (Ca3(PO4)2) is the main component of pure phosphorite. - The molar mass of calcium phosphate is the sum of the molar masses of calcium (Ca), phosphorus (P), and oxygen (O). - The molar mass of calcium phosphate is 310.18 g/mol. - To calculate the mass of calcium phosphate, we need to convert the mass of pure phosphorite to moles and then multiply by the molar mass of calcium phosphate. - Mass of calcium phosphate = Moles of pure phosphorite * Molar mass of calcium phosphate.

Let's calculate the values step by step.

Calculation

1. Calculate the mass of impurities in the phosphorite: - Mass of impurities = 35% of 50 tons. - Mass of impurities = 0.35 * 50 tons. - Mass of impurities = 17.5 tons.

2. Calculate the mass of pure phosphorite: - Mass of pure phosphorite = Total mass of phosphorite - Mass of impurities. - Mass of pure phosphorite = 50 tons - 17.5 tons. - Mass of pure phosphorite = 32.5 tons.

3. Calculate the mass of calcium phosphate in the pure phosphorite: - Molar mass of calcium phosphate = 310.18 g/mol. - To convert tons to grams, we multiply by 1,000,000 (1 ton = 1,000,000 grams). - Moles of pure phosphorite = (Mass of pure phosphorite in grams) / (Molar mass of pure phosphorite). - Mass of calcium phosphate = Moles of pure phosphorite * Molar mass of calcium phosphate. - Mass of calcium phosphate = (32.5 tons * 1,000,000 g/ton) / (310.18 g/mol) * (310.18 g/mol).

Let's calculate the final value.

Calculation Result

The mass of calcium phosphate (Ca3(PO4)2) in 50 tons of phosphorite, containing 35% impurities, is approximately 105,000 tons.

Please note that the calculations provided are based on the information given in the problem statement. If there are any additional factors or considerations, please let me know, and I'll be happy to assist you further.