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lianna [129]
2 years ago
12

How many electrons does the oxygen atom need to become stable?

Chemistry
2 answers:
djverab [1.8K]2 years ago
8 0
Your answer would be 2 electrons
NemiM [27]2 years ago
4 0

Answer:

2 electrons

Explanation:

Oxygen has 6 valence electrons and to be stable it needs 8. That means it needs 2 more electrons to have a full octet.

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A gas mixture has a total pressure of 0.51 atm and consists of He and Ne. If the partial pressure of He in the mixture is 0.32 a
sp2606 [1]

Explanation:

Relation between total pressure and mole fraction is as follows.

                   P_{1} = P^{o}x_{1}

where,     P_{1} = partial pressure of gas 1

                x_{1} = mole fraction of gas 1

                P^{o} = total pressure of the gases

Also,  it is known that x_{1} + x_{2} = 1

or,               x_{2} = 1 - x_{1}

It is given that total pressure of gas mixture is 0.51 atm and partial pressure of helium is 0.32 atm.

Hence, calculate the mole fraction of helium gas present in the given mixture as follows.

                P_{He} = P^{o}x_{He}

                0.32 atm = 0.51 atm \times x_{He}

                    x_{He} = 0.63

As, x_{He} + x_{Ne} = 1

so,             x_{Ne} = 1 - x_{He}

                               = 1 - 0.63

                               = 0.37

Hence, calculate the partial pressure of Ne as follows.

                    P_{total} = P_{He}x_{He} + P_{Ne}x_{Ne}

            0.51 atm = 0.32 atm \times 0.63 + P_{Ne}\times 0.37    

                   0.51 atm = 0.2016 atm + 0.37 \times P_{Ne}

                       0.3084 atm = 0.37 \times P_{Ne}

                            P_{Ne} = \frac{0.3084 atm}{0.37}

                                        = 0.834 atm

Thus, we can conclude that the partial pressure of the Ne in the mixture is 0.834 atm.

8 0
3 years ago
Jarvis checked his odometer reading when filling his tank, and then checked it several days later when he filled his tank again.
8_murik_8 [283]

Answer: 26.25 miles per gallon

Explanation: first odometer reading = 65290

Second odometer reading = 65500

Difference in odometer reading = second reading - first reading

= 65500 - 65290 = 210 miles.

If it took 8 gallons to fill his tank, it means

8 gallons will get him 210 miles, therefore 1 gallon will get 210 miles/8gallons = 26.25miles/gallon. Hence he is getting 26.25miles/gallon.

4 0
3 years ago
Read 2 more answers
How many mg of metallic ions are in 1.0 mL of 0.10 M LINO3
Anton [14]

Answer:

0.6941 mg

Explanation:

First we <u>calculate how many LiNO₃ moles there are</u>, using the <em>given concentration and volume</em>:

  • 1.0 mL * 0.10 M = 0.10 mmol LiNO₃

As 1 mol of LiNO₃ contains 1 mol of Li,<em> in the problem solution there are 0.10 mmol of Li</em> (the only metallic ion present).

Now we<u> convert Li milimoles into miligrams</u>, using its <em>atomic mass</em>:

  • 0.10 mmol Li * 6.941 mg/mmol = 0.6941 mg

8 0
3 years ago
How many mL of 2.0 M KOH are necessary to neutralize 50 mL of 1 M HCl?
worty [1.4K]

Answer:

25mL

Explanation:

Please see the step-by-step solution in the picture attached below.

Hope this can help you. Have a nice day!

6 0
3 years ago
What is the reason you can smell food cooking even when you're not in
Dmitry_Shevchenko [17]

Answer:

the answer should be A

5 0
2 years ago
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