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svetlana [45]
3 years ago
7

How many moles are in 1.22 * 10^20 atoms of Si

Chemistry
1 answer:
mezya [45]3 years ago
4 0

Answer:

2.03 × 10⁻⁴ moles

Explanation:

To convert atoms to moles, use Avogadro's number (6.022 × 10²³).

(1.22 × 10²⁰ atoms)/(6.022 × 10²³ atoms/mol) = 2.03 × 10⁻⁴ mol

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what is the Thermodynamics of leaching of ilmenite in hydrochloric acid for titania pigment production?
postnew [5]

The thermodynamics of leaching of ilmenite in hydrochloric acid for titania pigment production is an industrial production of nano-sized titanium dioxide (TiO2).

<h3>What is thermodynamics?</h3>

Thermodynamics is defined as the change in the energy of system that brings about work in that system.

The leaching of ilmenite which is a titanium-iron oxide mineral with HCl can lead to the production of titanium dioxide (TiO2).

The use of thermodynamics in this process controls the heat and energy of the leaching system leading to a better yield of final products.

Learn more about thermodynamics here:

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6 0
2 years ago
The electron configuration of an element is 1s22s22p63s1. Describe what most likely happens when an atom of this element comes n
Anastasy [175]

Answer:

The element with electron configuration 1s² 2s² 2p⁶ will most likely not react with an element having seven Valence electrons.

The electron configuration of the element in discuss is 1s² 2s² 2p⁶.

The element has enough electrons to fill it's energy level, n = 2 shell.

In essence, the element in discuss is unreactive as it has attained it's octet configuration and as such is neither in need of an electron nor ready to donate an electron.

As such, although an atom having seven Valence electrons is highly electronegative and as such is an electron attractor, the element with the full octet configuration does not react with it.

This unreactive nature of noble gases is attributed to the full octet configuration of noble gases.

P.S: The electron configuration above is the electron configuration of Neon, Ne.

5 0
3 years ago
In a c-br bond, the carbon has a partial negative charge. true or false
drek231 [11]
Yes its True. If we consider the electronegativity difference of Carbon and Bromine it is,

                            E.N of Bromine =  2.96

                            E.N of Carbon   =  2.55
                                                        _________

                             E.N difference  =  0.41

As the E.N difference is greater than 0.4 so this bond is slightly polar. And Bromine more electronegative than carbon will attract the electrons density towards itself making carbon partial positive, and itself partial negative.
4 0
3 years ago
Read 2 more answers
Sodium hydrogen carbonate and citric acid<br><br> Word equation
timofeeve [1]

Answer:

the right answer is:

Explanation:

How to Balance: NaHCO3 + HC2H3O2 = NaC2H3O2 + CO2 + H2O|

5 0
3 years ago
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How did you get the 3.2?
Helga [31]
I don't understand what you mean??

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