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How to calculated NaOH concentration be affected if the colour change in the solution is too dark?
Wiki User
∙ 10y ago
I presume you are titrating a standardized solution of (eg) HCl with NaOH to determine the molarity of the alkali. You would normally use an indicator which will change colour at the end point (eg colourless to pink for phenolphthalein). If the solution is very coloured to begin with it can mask the colour change and so make the end point hard to see and lead to a miscalculation of molarity.
Wiki User
∙ 10y ago
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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.
Does conductivitiy of water change as concentration of sugar change?
No. Sugar solution is not an electrolyte because it has no free charges in the solution to carry the electricity.
How does the concentration change as solid solute drink mix is added?
When a solid solute drink mix is added to any solution, the concentration changes to a higher magnitude.
0.1N Sodium Thiosulphate is primary or secondary solutions?
it is a secondary solution because it can change its concentration by absorbing moisture....
What is a solution that resists changes in the concentration of hydrogen ions caused by the addition of an acid or a base?
it is called a buffer. there would be minimal change in pH value if this solution is added
How does concentration change after every spoon full of salt is added after the solution is saturated?
The concentration of the salt solution does NOT change- it is saturated.
How can the concentration of a solution change?
You add zinc to the solution and add 10% of what is left
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.
What is the change in conductivity as the concentration of the NaCl solution was increased by the addition of NaCl drops?
The electrical conductivity of the solution will be higher if the concentration of NaCl increase.
Does conductivitiy of water change as concentration of sugar change?
No. Sugar solution is not an electrolyte because it has no free charges in the solution to carry the electricity.
What property of solution could you change to get a greater temperature change in endothermic and exothermic reactions?
Concentration.
How do you precipitate soluble complex?
Add salt to the solution. Change the temperature of the solution. Let the solvent evaporate in increase the concentration of the soluble complex. Change the pH of the solution.
How does the concentration of a pure liquid change throughout the course of a reaction?
The concentration of a pure liquid change throughout the course of a reaction decreases. This is because the substance is no longer pure.
Describe the concentration gradient shown in the transparency?
The description of the concentration of a gradient shown in the transparency is a gradual change of solutes that are in a solution. This is a function of distance through the solution in biology.
Why is there no change in the concentration of the NaCl solution?
The question is not clear; the concentration of salt in water can be very variable.
When the heat shifts the direction of the reaction there has been a change in concentration and equilibrium will then be affected?
true
Can the concentration of a substance change if it is an aqueous solution?
Yes. An aqueous solution means that at least one solute is dissolved in water. You can increase the concentration by adding more solute, or you can decrease the concentration by adding more water.
