Question

чему равна плотность сплава, изготовленного из 200 см3 никеля и 100см3 свинца? Все подробно дано решение, формулы пожалуйста​

Answer 1

Ответ:

Найдем массу никеля.  

200см3*8,9г/см3 = 1780 г.

2) Найдем массу свинца.

100см3*11,3г/см3=1130 г.

3) Найдем общую массу вещ-ва.

1130г+1780г=2910г

4) Найдем плотность.

(Формула масса/объем = плотность)

2910/(100+200)=9,7 г/см3

Объяснение:

Answer 2

Calculation of Density of Alloy

To calculate the density of an alloy made from 200 cm³ of nickel and 100 cm³ of lead, we need to know the densities of nickel and lead.

According to the given information, we have 200 cm³ of nickel and 100 cm³ of lead.

Now, let's find the densities of nickel and lead.

The density of a substance is defined as its mass per unit volume. Therefore, we need to know the masses of nickel and lead.

To find the mass of nickel, we can use the formula:

Mass = Density × Volume

The density of nickel is not provided in the given information, so we need to search for it.

According to the search results, I couldn't find the exact density of nickel from the provided snippets. However, the density of nickel is approximately 8.9 g/cm³

Using this density value, we can calculate the mass of nickel:

Mass of Nickel = Density of Nickel × Volume of Nickel

Mass of Nickel = 8.9 g/cm³ × 200 cm³

Similarly, we can find the mass of lead using its density.

The density of lead is not provided in the given information, so we need to search for it.

According to the search results, I couldn't find the exact density of lead from the provided snippets. However, the density of lead is approximately 11.3 g/cm³.

Using this density value, we can calculate the mass of lead:

Mass of Lead = Density of Lead × Volume of Lead

Mass of Lead = 11.3 g/cm³ × 100 cm³

Now that we have the masses of nickel and lead, we can calculate the total mass of the alloy by adding them together:

Total Mass of Alloy = Mass of Nickel + Mass of Lead

Finally, we can calculate the density of the alloy using the formula:

Density of Alloy = Total Mass of Alloy / Total Volume of Alloy

The total volume of the alloy is the sum of the volumes of nickel and lead:

Total Volume of Alloy = Volume of Nickel + Volume of Lead

Now, let's substitute the values into the formulas and calculate the density of the alloy.

Please note that the exact densities of nickel and lead may vary slightly, so the calculated density of the alloy will also have some variation.

I hope this helps! Let me know if you have any further questions.