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tigry1 [53]
2 years ago
10

How many molecules of oxygen gas (O2) are in 8 grams of oxygen

Chemistry
2 answers:
Pavlova-9 [17]2 years ago
8 0

Answer:Hence, in 8g of Oxygen molecules, there are 3. 011 x 10²³ Oxygen atoms. In this way, how many moles are in 16 grams of oxygen? In other words, 1 mole of oxygen would contain molecules

Explanation:

12345 [234]2 years ago
8 0
Hence, in 8g of Oxygen molecules, there are 3. 011 x 10²³ Oxygen atoms. In this way, how many moles are in 16 grams of oxygen? In other words, 1 mole of oxygen would contain molecules.
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3 years ago
In order for the process to be endothermic, the energy required to break the lattice has to be _______ than the energy released
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Explanation:

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3 years ago
Read 2 more answers
How many moles of mercury, Hg, are there in 1.30 x 10^7 atoms of murcury? PLEASE HELP, IT'S URGENT! Thank you! (:
vodka [1.7K]
1 mole Hg ---------------- 6.02x10²³ atoms
??  ------------------------- 1.30 x10⁷ atoms

1.30x10⁷ x 1 / 6.02x10²³ =

= 1.30x10⁷ / 6.02x10²³ => 2.159x10⁻¹⁷ moles

hope this helps!

7 0
3 years ago
A compound is found to contain 38.65 % carbon, 16.25 % hydrogen, and 45.09 % nitrogen by mass. what is the empirical formula for
iren [92.7K]

The molar mass of carbon is 12, hydrogen is 1, and nitrogen is 14, hence the ratio are:

 

C = 38.65 / 12 = 3.22

H = 16.25 / 1 = 16.25

N = 45.09 / 14 = 3.22

 

Divide the three by the lowest ratio which is 3.22:

 

C = 3.22 / 3.22 = 1

H = 16.25 / 3.22 = 5

N = 3.22 / 3.22 = 1

 

So the empirical formula is:

CHN

5 0
3 years ago
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