Answer:
until it gets bright white or smells bad, then throw it out
Explanation:
Answer:
- 1 mole of carbon disulfide gas at 273 K and 40 L
- 1 mol of chlorine gas at 273 K and 40 L
- 1 mol of neon gas at 273 K and 40 L
- 1 mol of neon gas at 273 K and 20 L
- 1/2 mol of neon gas at 273 K and 20 L
- 1/2 mol of neon gas at 100 K and 20 L
- 1/2 mol of liquid neon at 100 K
Explanation:
Entropy is the measure of disorder or randomness in a closed system. Its an extensive property of a thermodynamic system
The following points must be considered when ranking the systems according to their entropy:
- The entropy of gases are highest than liquids or solid. And entropy of liquid is higher than solid. That is because gas has more microstate thus have the highest entropy.
- Entropies of large complicated molecules are greater than those of smaller, simpler molecules. Because larger molecules have more disorder because of the greater number of ways they can be move around in three dimensional space.
- highest temperature and highest volume will lead to greatest entropy
- 1 mole of any substance will have greater entropy than 1/2 mole of that same substance
Answer:
See the image Below
Explanation:
Single C-C bonds have free rotation and thus Newman Projections are quite useful for understanding the different 3D conformations of a molecule.
For any Newman Projection you have 2 bonded carbons, one <em>in front </em>of the other, therefore you rotate the bond by rotating the groups that are bonded to the carbons. i. e. in the 2-Methylpentane <em>(viewing the C3-C4 bond)</em> the carbons chosen are the 3rd and the 4th then you look to which are the other groups bonded; <em>2 H and an isopropyl for the 3rd one, and 2 H and a Methyl for the 4th one</em>.
The different rotations of those groups receive different names:
- <em>Anti Conformation: </em>Main groups of the two Carbons are 180º apart from one another. Making this the most stable conformation of the molecule. <em>(Taking into account steric effects)</em>
- <em>Gauche Conformation: </em>Principal groups are 60º apart from each other. Since are 6 spaces between groups (360º/6)=60º. It is less stable than an Anti conformation due to the same reason.
- <em>Eclipsed Conformation: </em>The less stable conformation since the main groups are confronted.
Answer:
The percentage of volume of ethanol is 35%.
<u>Explanation:</u>
The percentage of volume of ethanol is calculated by
Percent of volume of ethanol = (volume of X / total volume) * 100
We are going to assume these volumes will be added together to make 100mL.
Percent volume of Ethanol = (volume of ethanol / total volume) * 100
= 35mL / 100mL * 100
= 35%
Explanation:
CH3CO2H + NH3 → CH3 CO2− + NH4+