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What else can I help you with?
Is buffer capacity the same if determined by titration with a strong base instead of a strong acid?
It depends a bit on the buffer itself, but it is usually true. Generally speaking, a buffer is a solution composed of a weak acid (or base) along with its conjugate base (or acid). Usually, the two components (let's call the HA and A- for a weak acid and its conjugate base) are added in equal concentrations. If this is the case, then it is also true that the pH of the solution is equal to the pKa of the weak acid, a very useful fact. If the concentration of two HA and A- are equal, then the buffer capacity should be the same using a strong acid or strong base. However, you can also make a buffer with unequal concentrations of HA and A-. This is still considered a buffer solution, and it will resist change to pH in both directions, but unequally now. If you have a higher concentration of HA than A-, then the buffer will have a higher capacity to resist pH change if you add a strong base (because the base will be deprotonating HA, which you have more of). If you added a strong acid instead, then you would protonate all the A- faster (than you would deprotonate HA with the same amount of strong base), and so it would have a lower buffer capacity. This discussion works equally well if you are using a weak base (B) and its conjugate acid (HB+) instead, except everything is switched!
Is one method for detecting the endpoint of a titration involves using an idicator dye that changes color at different pH values true or false?
True. One method for detecting the endpoint of a titration is indeed using an indicator dye that changes color at different pH values. The color change of the indicator dye can be observed to determine when the reaction between the titrant and analyte is complete.
Polymers are formed by hydrolysis true or false?
This is for sure &*!@)!(@)!(@, this is because senior is too good for you.
True or false is chemical energy a type of potential energy due to the composition of a substance?
True. Chemical energy is a type of potential energy that is stored in the bonds between atoms within a substance. It is released during chemical reactions when these bonds are broken and new ones are formed.
Changes color at the endpoint of a titration?
yes,its true that colour changes at the endpoint of titration but in some cases coloured solution become colourless.it indicate end of a reaction in which one substance has been fully used up.indicators are used to locate the endpoint but in certain cases reactant or product itself is coloured which at endpoint become colourless or coloured.
Was the NAACP formed during the progressive movement true or false?
true!
True or False..... Lymph is formed from blood during capillary exchange and rejoins the bloodstream later.?
Lymph is formed from blood during capillary exchange and rejoins the bloodstream later is true.
Mongolia and the idea of a buffer state?
TRUE
Is urine formed when absorption and reabsorption happen during blood filtration?
This is true.
Was The national association for the advancement of colored people was formed during the progressive movement?
simply put true
Is lymph formed from blood during capillary exchange and refoins the bloodstream later?
This true.
True or false during the second geological era all land that had formed began to move together to form one continent?
True
Is buffer capacity the same if determined by titration with a strong base instead of a strong acid?
It depends a bit on the buffer itself, but it is usually true. Generally speaking, a buffer is a solution composed of a weak acid (or base) along with its conjugate base (or acid). Usually, the two components (let's call the HA and A- for a weak acid and its conjugate base) are added in equal concentrations. If this is the case, then it is also true that the pH of the solution is equal to the pKa of the weak acid, a very useful fact. If the concentration of two HA and A- are equal, then the buffer capacity should be the same using a strong acid or strong base. However, you can also make a buffer with unequal concentrations of HA and A-. This is still considered a buffer solution, and it will resist change to pH in both directions, but unequally now. If you have a higher concentration of HA than A-, then the buffer will have a higher capacity to resist pH change if you add a strong base (because the base will be deprotonating HA, which you have more of). If you added a strong acid instead, then you would protonate all the A- faster (than you would deprotonate HA with the same amount of strong base), and so it would have a lower buffer capacity. This discussion works equally well if you are using a weak base (B) and its conjugate acid (HB+) instead, except everything is switched!
Is Mongolia a buffer state?
Mongolia is a perfect example of a buffer state, as it rests between China and Russia. A buffer state is housed between two large and hostile powers.
Was the national association for the advancement of colored people or NAACP formed during the progressive movement?
simply put true
Afghanistan was created in the 19th century as a buffer between Russian and British spheres of influence?
True.
Is it true or False that The Mexican Government encouraged settlement of Texas by Americans to create a buffer zone a neutral area between the two countries?
It is true that the Mexican government encouraged settlement of Texas by Americans to create a buffer zone between the two countries.
