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Burka [1]
3 years ago
7

How many moles are in 1.204 x 10^24 atoms of gold?

Chemistry
1 answer:
Arturiano [62]3 years ago
8 0

Answer:

<h3>The answer is 2 moles</h3>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L} \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question

N = 1.204 × 10²⁴ atoms of gold

We have

n =  \frac{1.204 \times  {10}^{24} }{6.02 \times  {10}^{23} }  \\

We have the final answer as

<h3>2 moles</h3>

Hope this helps you

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Answer:

2,959.36

Explanation:

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2 years ago
How can you tell if an element has been oxidized or reduced in a reaction?
fomenos
Gaining of electrons is reduction and loss of electrons is oxidation. 

<em>Hope this helped! :)</em>
7 0
3 years ago
wo reactions and their equilibrium constants are given. A + 2 B − ⇀ ↽ − 2 C K 1 = 2.57 2 C − ⇀ ↽ − D K 2 = 0.226 A+2B↽−−⇀2CK1=2.
Papessa [141]

<u>Answer:</u> The value of equilibrium constant for the net reaction is 11.37

<u>Explanation:</u>

The given chemical equations follows:

<u>Equation 1:</u>  A+2B\xrightarrow[]{K_1} 2C

<u>Equation 2:</u>  2C\xrightarrow[]{K_2} D

The net equation follows:

D\xrightarrow[]{K} A+2B

As, the net reaction is the result of the addition of first equation and the reverse of second equation. So, the equilibrium constant for the net reaction will be the multiplication of first equilibrium constant and the inverse of second equilibrium constant.

The value of equilibrium constant for net reaction is:

K=K_1\times \frac{1}{K_2}

We are given:

K_1=2.57

K_2=0.226

Putting values in above equation, we get:

K=2.57\times \frac{1}{0.226}=11.37

Hence, the value of equilibrium constant for the net reaction is 11.37

6 0
3 years ago
When the Sun provides heat energy to the water cycle it creates which of the following?
GenaCL600 [577]

Answer: Evaporation

Explanation:

When the heat of the sun touches the water, the water molecules heat up and move gradually faster. Over time molecules start to pop out the surface of the water individually.

And then eventually all the water is evaporated into water vapor.

7 0
2 years ago
How can the rate of a reaction be increased?
Nana76 [90]
I think it may be A.
But I'm not sure






4 0
3 years ago
Read 2 more answers
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