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Blizzard [7]
3 years ago
15

How many micrometers are in 1.25 miles. Tell me how you got that answer as well.​

Chemistry
1 answer:
Oliga [24]3 years ago
5 0

Answer:

10, 100, 1,000, etc., as well as 0.1, 0.01, 0.001, etc

Explanation:

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For neon, determine the moles and mass contained in a 29.9−L volume at a pressure of 481.1 torr at a temperature of 300.0 K.
kondor19780726 [428]

Answer:

.7689 mol

15.516 g

Explanation:

Use the Ideal Gas Law, PV = nRT.

Make sure to use the correct ideal gas constant R. You can either put R in torr, or you can change the pressure to atm. I've just used the torr ideal gas constant.

481.1 torr * 29.9 L = n 62.364 LTorr/molK * 300 K

14384.89 = 18709.2n

n = <u>.7689 mol</u>

The molar mass of neon (remember that neon gas = Ne, it's not diatomic) is 20.18 g/mol from the periodic table.

.7689 mol * 20.18 g/mol = <u>15.516 g</u>

8 0
3 years ago
HEY EVERYONE its poofett my account got deleted for no absolute reason! &gt;:D​
PilotLPTM [1.2K]

Answer:

am very sorry

Explanation:

5 0
3 years ago
Read 2 more answers
How do a strong electrolyte, weak electrolyte, and non-electrolyte differ in the number of ions each produces when dissolved in
Dmitrij [34]
Strong electrolytes  are completely ionised in solution.
Weak ones are only partially ionised.
Non electrolytes do not  form ions
3 0
3 years ago
Which element will have the lower ionization energy? Be. Ba
sp2606 [1]
Boron would have the lower first ionization energy.
Be: 1s2 2s2
B: 1s2 2s2 2p1 -> electron from the p orbital is easier to eject than than electron from the s orbital.
6 0
3 years ago
Read 2 more answers
Heat the oxygen to about 150 K. What state of matter is this?
adelina 88 [10]

Answer:

  • <u>Gas</u>

Explanation:

It is easier if you convert the kelvin temperature into Celsius degrees:

  • ºC = T - 273.15 = 150 - 273.15 = -123.15ºC

Now, you know that that is a very cold temperature. Thus, may be the oxygen is not gas any more but it changed to liquid . . . or solid?

You must search for the boiling point and melting (freezing) point of oxygen in tables or the internet. At standard pressure (about 1 atm) they are:

  • Melting point: −218.79 °C,
  • Boiling point: −182.962 °C

That means that:

  • below -218.79ºC oxygen is solid (not our case).
  • between -218.79ºC and -182.962ºC oxygen is liquid (not our case)
  • over -182.962ºC oxygen is a gas. This is our case, because -123.15ºC is a higher temperature than -182.962ºC.

Hence, <em>the state of matter of oxygen at 150K</em>, and standard pressure, is gas.

3 0
3 years ago
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