Explanation:
Polarity is defined as the development of partial charges on the atoms of a molecule. In a water molecule, there are hydrogen and oxygen atoms.
Due to the difference in electronegativity of both hydrogen and oxygen atom there is development of partial positive charge on hydrogen atom and a partial negative charge on oxygen atom.
Dipole-dipole interactions are defined as the interactions that occur when partial positive charge on an atom is attracted by partial negative charge on another atom.
So, when is attracted towards then this attraction is due to dipole-dipole interaction taking place between the sodium ion and water molecules.
Thus, we can conclude that when NaCl dissolves in water, aqueous and ions result. The force of attraction that exists between and is called a dipole-dipole interaction.
The density of vldl is 1.152 mg/l
Calculation:
Given mass = 0.288 mg
Given volume = 0.252 ml
From the formula
Density = Mass/ volume
= 0.288 / 0.252
= 1.152 mg/l
The density of a substance (volumetric mass density or specific mass) is its mass per unit volume. The most common symbol for density is (the lower case Greek letter rho), but the Latin letter D can also be used. Density defined mathematically
p = mass / volume
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Answer:- The wavelength is and the right option is D.
Solution:- Wavelength is inversely proportional to the frequency and the equation is:
where, is the wavelength, c is the speed of light and is frequency.
Frequency is and the speed of light is .
Since,
So,
Let's plug in the values in the equation:
Hence, the right option is D) .
Can you show a picture instead so I can see