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In-s [12.5K]
3 years ago
14

A 20.0 L gas cylinder has been filled with 4.00 moles of gas. You measure the pressure to be 4.20 atm . What is the temperature

inside the tank? Express your answer to three significant figures and include the appropriate units. View Available Hint(s)
Chemistry
1 answer:
Over [174]3 years ago
4 0

Answer:

256 K

Explanation:

Given data

  • Volume (V): 20.0 L
  • Moles (n): 4.00 mol
  • Pressure (P): 4.20 atm
  • Ideal gas constant (R): 0.0821 atm.L/mol.K
  • Temperature (T): ?

We can determine the temperature of the gas using the ideal gas equation.

P × V = n × R × T

T = P × V / n × R

T = 4.20 atm × 20.0 L / 4.00 mol × 0.0821 atm.L/mol.K

T = 256 K

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4 years ago
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Element m reacts with fluorine to form an ionic compound with the formula mf4. the m cation has 18 electrons. element m is:____.
polet [3.4K]

Element M reacts with fluorine to form an ionic compound with the formula MF₄. The M cation has 18 electrons. Element M is Sn.

<h3>What is Ionic Compound ?</h3>

An ionic compound is defined as the compound made up of ions that formed charge particles when an atom loses or gains electrons.

<h3>What is Cation ?</h3>

Cations are positively charged ions. It forms when an element lose one or more electrons.

The cation which has 18 electrons is Sn. Sn react with fluorine to form an ionic compound with the formula SnF₄ because Sn is large and F is very small in size.

Thus from the above conclusion we can say that Element M reacts with fluorine to form an ionic compound with the formula MF₄. The M cation has 18 electrons. Element M is Sn.

Learn more about the Ionic Compound here: brainly.com/question/2687188

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6 0
2 years ago
How many moles of mercury, Hg, are there in 1.30 x 10^7 atoms of murcury? PLEASE HELP, IT'S URGENT! Thank you! (:
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1 mole Hg ---------------- 6.02x10²³ atoms
??  ------------------------- 1.30 x10⁷ atoms

1.30x10⁷ x 1 / 6.02x10²³ =

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

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7 0
3 years ago
PLEASE HELP ASAP! very much appreciated
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Answer:

-Unknown

Explanation:

Questions is not seen properly bro

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The specific heat capacity of an unknown metal is 0.343 J/(g•°C). Calculate the energy required to raise the temperature of 224
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Explanation:

the answer and explanation is in the picture

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