Answer:
24.9 L Ar
General Formulas and Concepts:
<u>Atomic Structure</u>
- Reading a Periodic Table
- Moles
- STP (Standard Conditions for Temperature and Pressure) = 22.4 L per mole at 1 atm, 273 K
<u>Aqueous Solutions</u>
<u>Stoichiometry</u>
- Using Dimensional Analysis
Explanation:
<u>Step 1: Define</u>
[Given] 40.0 g Ar
[Solve] L Ar
<u>Step 2: Identify Conversions</u>
[PT] Molar Mass of Ar - 39.95 g/mol
[STP] 22.4 L = 1 mol
<u>Step 3: Convert</u>
- [DA] Set up:
![\displaystyle 40.0 \ g \ Ar(\frac{1 \ mol \ Ar}{39.95 \ g \ Ar})(\frac{22.4 \ L \ Ar}{1 \ mol \ Ar})](https://tex.z-dn.net/?f=%5Cdisplaystyle%2040.0%20%5C%20g%20%5C%20Ar%28%5Cfrac%7B1%20%5C%20mol%20%5C%20Ar%7D%7B39.95%20%5C%20g%20%5C%20Ar%7D%29%28%5Cfrac%7B22.4%20%5C%20L%20%5C%20Ar%7D%7B1%20%5C%20mol%20%5C%20Ar%7D%29)
- [DA] Divide/Multiply [Cancel out units]:
![\displaystyle 24.9235 \ L \ Ar](https://tex.z-dn.net/?f=%5Cdisplaystyle%2024.9235%20%5C%20L%20%5C%20Ar)
<u>Step 4: Check</u>
<em>Follow sig fig rules and round. We are given 3 sig figs.</em>
24.9235 L Ar ≈ 24.9 L Ar
I think it’s :answer choice c
A. conduction
that is the correct answer
Answer:
Option E!
Explanation:
If we were to draw the lewis dot structure for IBr2 -, we would first count the total number of valence electrons ( " available electrons " ). Iodine has 7 valence electrons, and so does Bromine, but as Bromine exists in 2, the total number of valence electrons would be demonstrated below;
![7 + 7 * ( 2 ) =\\7 + 14 + 1 =\\22 Electrons](https://tex.z-dn.net/?f=7%20%2B%207%20%2A%20%28%202%20%29%20%3D%5C%5C7%20%2B%2014%20%2B%201%20%3D%5C%5C22%20Electrons)
Don't forget the negative on the Bromine!
Now go through the procedure below;
1 ) Place Iodine in the middle and draw single bonds to each of the bromine.
2 ) Add three lone pairs on each of the Bromine's
3 ) Now we have 6 electrons left, if we were to exclude the electrons shared in the " single bonds. " This can be placed as three lone pairs on Iodine ( central atom )!
The molecular geometry can't be linear, as there are lone pairs on the atoms. This makes it bent.