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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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Activation energy, Ea, for the reaction 261.7 kj/mole

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Temperature (T₁) = 470 + 273 = 743 K and

temperature (T₂) = 500 + 273 = 773 K

Activation energy (Eₐ) = ?

Universal gas constant (R) = 8.314 J. K⁻¹. mole⁻¹

We know   log\frac{K_{2} }{K_{1} } = \frac{E_{a} }{2.303XR}\frac{(T_{2}-T_{1} ) }{T_{2}T_{1}  }

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