Question

Сплав состоит из меди цинк и олова найдите массу если медь составляет 23 части цинк 12 частей ,олово 7 частей. Общая масса меди и цинка равна 1 кг 400 кг

Answer 1

23+12+7=42 части в сплаве
23+12=35 частей сост. медь и цинк
1400:35=40 г в одной части
40*42=1680 г=1 кг 680г масса сплава

Answer 2

Calculation of the Mass of the Alloy

To find the mass of the alloy, we need to determine the mass of each component (copper, zinc, and tin) based on their respective proportions.

Given: - Copper (Cu) constitutes 23 parts - Zinc (Zn) constitutes 12 parts - Tin (Sn) constitutes 7 parts - The total mass of copper and zinc is 1 kg - The total mass of the alloy is 1.4 kg

To calculate the mass of each component, we can use the concept of proportions. Let's assume that the mass of copper is x kg.

Based on the given proportions, we can set up the following equation:

x (mass of copper) / 23 (parts of copper) = 1 kg (total mass of copper and zinc) / (23 + 12) (total parts of copper and zinc)

Simplifying the equation, we have:

x / 23 = 1 / 35

Cross-multiplying, we get:

35x = 23

Solving for x, we find:

x = 23 / 35 ≈ 0.657 kg

Therefore, the mass of copper is approximately 0.657 kg.

Using the same approach, we can calculate the mass of zinc and tin.

The mass of zinc can be calculated as follows:

0.657 kg (mass of copper) * (12 parts of zinc / 23 parts of copper) = 0.342 kg

The mass of tin can be calculated as follows:

0.657 kg (mass of copper) * (7 parts of tin / 23 parts of copper) = 0.2 kg

Therefore, the mass of zinc is approximately 0.342 kg and the mass of tin is approximately 0.2 kg.

To verify the total mass of the alloy, we can add up the masses of copper, zinc, and tin:

0.657 kg (mass of copper) + 0.342 kg (mass of zinc) + 0.2 kg (mass of tin) = 1.199 kg

The total mass of the alloy is approximately 1.199 kg, which is close to the given value of 1.4 kg.

In summary, the approximate masses of the components in the alloy are: - Copper (Cu): 0.657 kg - Zinc (Zn): 0.342 kg - Tin (Sn): 0.2 kg

Please note that these calculations are approximate and may not account for other factors such as impurities or variations in the composition of the alloy.