Calculate the concentration of HC6H6O6- in an aqueous solution of 0.0851 M ascorbic acid, H2C6H6O6 (aq).

I do not know how to start this

1 answer

problem. Can you please explain how to solve it?

The first step is to calculate the molar mass of ascorbic acid, H2C6H6O6. This can be done by adding up the atomic masses of each element in the compound:

2 x 12.011 (for the two hydrogen atoms) + 6 x 12.011 (for the six carbon atoms) + 6 x 15.999 (for the six oxygen atoms) = 176.086 g/mol

Next, you need to calculate the number of moles of ascorbic acid in the solution. This can be done by dividing the given concentration (0.0851 M) by the molar mass of ascorbic acid (176.086 g/mol):

0.0851 M / 176.086 g/mol = 0.0048 moles of ascorbic acid

Finally, you can calculate the concentration of HC6H6O6- in the solution. This can be done by multiplying the number of moles of ascorbic acid (0.0048 moles) by the number of moles of HC6H6O6- produced when one mole of ascorbic acid is oxidized (2 moles):

0.0048 moles x 2 moles = 0.0096 M HC6H6O6-