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Crank
2 years ago
6

1. What is the mass of 2.23 x 1023 atoms of sulfur?

Chemistry
1 answer:
sertanlavr [38]2 years ago
5 0

Answer:

La masa de 2,23×10²³ átomos de azufre es 11,85 g

A partir de una comprensión detallada de la hipótesis de Avogadro, entendimos que 1 mol de cualquier sustancia contiene 6,02 × 10²³ átomos.

La afirmación anterior implica que:

6,02×10²³ átomos = 1 mol de azufre

Recordar :

1 mol de azufre = 32 g

Así, podemos decir que:

6,02×10²³ átomos = 32 g de azufre

Con la información anterior , podemos obtener la masa de 2,23×10²³ átomos de azufre. Esto se puede obtener de la siguiente manera:

6,02×10²³ átomos = 32 g de azufre

Por lo tanto,

2,23×10²³ átomos = *la imagen*

2,23×10²³ átomos = 11,85 g de azufre

Así, la masa de 2,23×10²³ átomos de azufre es 11,85 g

Explanation:

The mass of 2.23×10²³ sulfur atoms is 11.85 g

From a detailed understanding of Avogadro's hypothesis, we understood that 1 mole of any substance contains 6.02 × 10²³ atoms.

The above statement implies that:

6.02×10²³ atoms = 1 mole of sulfur

Remember :

1 mole of sulfur = 32 g

Thus, we can say that:

6.02×10²³ atoms = 32 g of sulfur

With the above information, we can obtain the mass of 2.23×10²³ sulfur atoms. This can be obtained as follows:

6.02×10²³ atoms = 32 g of sulfur

Therefore,

2.23×10²³ atoms =*the picture*

2.23×10²³ atoms = 11.85 g of sulfur

Thus, the mass of 2.23×10²³ sulfur atoms is 11.85 g

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inysia [295]
Methane + Oxygen -----> Carbon Dioxide + Water (+energy)
3 0
2 years ago
A scientist places a large beaker containing 325 g of 50degree Celsius water into a microwave. He has to run the microwave for 3
Bingel [31]

The amount of energy absorbed by the 325g of water is 57,057J. Details about calorimetry can be found below.

<h3>How to calculate energy?</h3>

The energy absorbed by a mass of substance can be calculated using the following formula;

Q = mc∆T

Where;

  • Q = quantity of heat absorbed
  • m = mass of substance
  • c = specific heat capacity
  • ∆T = change in temperature

Q = 325g × 4.18 × (92 - 50)

Q = 57,057J

Therefore, the amount of energy absorbed by the 325g of water is 57,057J.

Learn more about energy at: brainly.com/question/3609481

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6 0
2 years ago
You purchase a bottle of concentrated sulfuric acid from a chemical supplier. The bottle reads Sulfuric acid (95% w/w) plastic c
My name is Ann [436]

Answer:

The molarity of the sulfuric acid is 0.018 M

Explanation:

The molarity of a solution is the number of moles of the solute (sulfuric acid in this case) in a 1-liter solution.

Every 100 g of the solution, we have 95 g sulfuric acid because its concentration is 95% w/w.

With the density, we can calculate how many liters are 100 g of solution:

density = mass / volume

1.85 g / ml = 100 g / volume

volume = 100 g / 1.85 g/ml

volume = 54.1 ml or 0.0541 l

Now, we know that we have 95 g sulfuric acid in 0.0541 l solution. In 1 l, we have then:

1 l * 95g / 0.0541 l = 1.756 g sulfuric acid.

But we want to know how many moles sulfuric acid we have per liter. Then, using the molar mass, we can calculate how many moles there are in 1.756 g sulfuric acid:

1.756 g * 1 mol / 98.08 g = 0.018 mol

The molarity is 0.018 M

4 0
3 years ago
If a temperature increase from 21.0 ∘c to 35.0 ∘c triples the rate constant for a reaction, what is the value of the activation
Airida [17]

Answer:

59.077 kJ/mol.

Explanation:

  • From Arrhenius law: <em>K = Ae(-Ea/RT)</em>

where, K is the rate constant of the reaction.

A is the Arrhenius factor.

Ea is the activation energy.

R is the general gas constant.

T is the temperature.

  • At different temperatures:

<em>ln(k₂/k₁) = Ea/R [(T₂-T₁)/(T₁T₂)]</em>

k₂ = 3k₁ , Ea = ??? J/mol, R = 8.314 J/mol.K, T₁ = 294.0 K, T₂ = 308.0 K.

ln(3k₁/k₁) = (Ea / 8.314 J/mol.K) [(308.0 K - 294.0 K) / (294.0 K x 308.0 K)]

∴ ln(3) = 1.859 x 10⁻⁵ Ea

∴ Ea = ln(3) / (1.859 x 10⁻⁵) = 59.077 kJ/mol.

4 0
2 years ago
The three types of nuclear radiation in increasing order of penetrating power are ____.
cricket20 [7]

Answer:

The three types of nuclear radiation in increasing order of penetrating power are ____.

alpha, beta, gamma

Explanation:

Alpha Ray: This has the least penetrating power because the particles produced during decay are large in  quantity but they have a very low energy which dosent alow them to move far through space because the are ususally blocked.

Beta ray : they have more penetrating power than alpha rays because they a bit higher in energy and quantity {size}

Gamma Ray;  this has the most penetrating power. they are highly powerful  waves but do little at ionization of other atoms or molecules.  it penetrates through molecules very easily due to its size and energy.

5 0
3 years ago
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