Answer:
Option A. The polar solvent molecule surrounds the positive sodium ions and the negative chloride ions.
Explanation:
When a salt say NaCl dissolved in water, the solvent molecules surround both the Na+ and Cl-. The Na+ are surrounded by OH- and the Cl- are surrounded by H+.
1. the periodic table is arranged in order of atomic number
The London Dispersion force is a temporary attratctive force that results when the electrons in 2 adjacent atoms occupy position that makes the atom form temporary dipoles.
Answer:
Explanation:
The <em>partial pressure</em> of a gas in a mixture is equal to the mole fraction of the gas multipplied by the total pressure.
The mole fraction of a component in a mixture is equal to the number of moles of the component divided by the total number of moles in the mixture.
In the mixture given there are:
- 0.5 mol He,
- 0.09 mol CO₂,
- 0.75 mol O₂, and
- 1.5 mol At.
Hence, the gas with greatest number of moles, and, consequetly, greatest mole fraction and<em> highest partial pressure</em> is<em> At</em>.
Answer:
Butanoic Acid:
I have attached the structure of Butanoic Acid. Please refer to the attachment.
Explanation:
Solution:
First of all, we need to calculate the double bond equivalent (DBE) for the compound given:
Compound = C4H8O2
DBE = (C +1) - (H + X - N)/2
C = no. of carbons
H = no. of Hydrogen
X = no. of Halogens
N = no. of Nitrogen
DBE = (4+1) - (8/2)
DBE = 5-4
DBE = 1
It indicates the presence of 1 double bond in the possible structure.
Further structure can be identified by looking the peak values of the spectrum. So, we have,
2500 - 3300 = it indicates the presence of -COOH group
1720 = it indicates the (C=0) stretching
1200 = It indicates the (C-O) stretching
SO, the possible structure is
Butanoic Acid:
I have attached the structure of Butanoic Acid. Please refer to the attachment.
