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True or false As the concentration of a colored solution increases the absorbance value decreases?
Wiki User
∙ 14y ago
Absorbance rises with concentration because there is more material for a given frequency of light to be absorbed in. Your statement is false.
Wiki User
∙ 14y ago
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Does absorbance increase or decrease as the solution concentration of the substance increase?
The light is absorbed at a specific wavelength and this is because the electrons in the chemical bonds only absorb certain wavelengths of light. So, more concentration, more bonds and more electrons to absorb the light.
Why does the molar conductivity of weak acid decrease as the concentration increases?
For a weak acid (or base), as the concentration increases, the % ionization/dissociation decreases. This leads to fewer ions in solution, and hence the molar conductivity decreases.
If the pH of a solution decreases below 7.0 1. the acidity of the solution increases 2. the acidity of the solution decreases 3. the hydronium ion or hydrogen ion concentration increases 4. the hydron?
You guys are too smart.
Why does the percent ionization of acetic acid increase as the concentration of the solution decreases?
As you increase the concentration of the solution, the concentration of H+ does not change. Meaning, the concentration ionized does not change. Just the original concentration increases. Since percent ionization = (concentration ionized)/(original concentration) , and the original concentration is increased, the percent ionization therefore decreases.
How do hydroxyl ions and hydronium ions affect pH?
As the concentration of hydronium ions (H+ ions) increases or as the concentration of hydroxyl ions (OH- ions) decreases, the pH of the solution decreases
What is A measurement system used to indicate the concentration of Hydrogen ions in solution?
the pH scale. as the pH of the solution decreases (below 7), the concentration of H+ ions increases. as the pH of the solution increases (above 7), the concentration of H+ ions decreases. (if the pH is 7, the solution is neutral).
Does absorbance increase or decrease as the solution concentration of the substance increase?
The light is absorbed at a specific wavelength and this is because the electrons in the chemical bonds only absorb certain wavelengths of light. So, more concentration, more bonds and more electrons to absorb the light.
Why does the molar conductivity of weak acid decrease as the concentration increases?
For a weak acid (or base), as the concentration increases, the % ionization/dissociation decreases. This leads to fewer ions in solution, and hence the molar conductivity decreases.
If the pH of a solution decreases below 7.0 1. the acidity of the solution increases 2. the acidity of the solution decreases 3. the hydronium ion or hydrogen ion concentration increases 4. the hydron?
You guys are too smart.
The absorbance of a solution of NiCl2 of unknown concentration is found to be 0.388 what is the concentration of this soultion?
684
Why does the percent ionization of acetic acid increase as the concentration of the solution decreases?
As you increase the concentration of the solution, the concentration of H+ does not change. Meaning, the concentration ionized does not change. Just the original concentration increases. Since percent ionization = (concentration ionized)/(original concentration) , and the original concentration is increased, the percent ionization therefore decreases.
How do hydroxyl ions and hydronium ions affect pH?
As the concentration of hydronium ions (H+ ions) increases or as the concentration of hydroxyl ions (OH- ions) decreases, the pH of the solution decreases
If pH increases does a group become more or less protonated?
If pH increases, then the solution is less protonated. The pH of a solution is defined as -log[H+], so when the concentration of hydrogen ions increases, the pH decreases.
What happens to the freezing temperature of a solution of table salt in water as the solution becomes more concentrated?
As concentration of a solute (like table salt) in a solvent increases, the freezing point of water lowers. The vapor pressure also decreases, and the boiling point increases. These are known as water's colligative properties.
How does dilution affect concentration of a solution?
Dilution reduces the concentration of a solution.
What is the molar absorption of copper-II sulfate pentahydrate whose absorbance is 0.17 at 650nm?
Depends on the length the light traveled through the solution and the solution concentration. molar absorption = absorbance/(length x concentration) length is typically in cm and concentration is typically in mol/L
What happens when a base dissolve?
It increases the concentration of OH - in a solution.
