Achemistry student weighs out 0.306 g of citric acid (h3c6h5o7), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with 0.1000 m naoh solution. calculate the volume of naoh solution the student will need to add to reach the final equivalence point. be sure your answer has the correct number of significant digits.

The volume of NaOH solution is "47.8 mL".

Given values are:

Concentration of NaOH ,

Mass,

The equation,

→

Now,

→ The moles of will be:

=

=

=

→ Moles of NaOH will be:

=

=

=

hence,

→ The volume of NaOH will be:

=

=

=

or,

=

Thus the above response is right.

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Explanation:

For simplicity, let's write the formula of citric acid as H₃A.

1. Balanced chemical equation.

2. Moles of H₃A

3. Moles of NaOH.

4. Volume of NaOH

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-

answer7,570,82356 cubic centimeters;