32.67 mL of a 0.1249 M sodium hydroxide solution are required to completely react with a vitamin C tablet with a mass of 908 mg . The potency on the bottle of vitamin C tablets is 500 mg. The molecular weight of vitamin C is 176.12 g/mol, and the molecular equation for the reaction is HC₆H₇O₆ (aq) + NaOH (aq) â NaC₆H₇O₆ (aq) + H₂O (l).

How many moles of OH^- are used in the titration?

How many moles of vitamin C are in the tablet?

How many milligrams of vitamin C are in the tablet?

What is the mass percent of vitamin C in the tablet?

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aujekarmithilesh14Lv3

9 May 2023

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Related questions

 
Calculate the amount of ascorbic acid in the Vitamin C tablet in (mg).  =?

A vitamin C (ascorbic acid) tablet was dissolved in approximately 50 mL of distilled water and titrated with the standardized NaOH solution. From 
the results of this titration, the mg of ascorbic acid in the tablet was calculated.
Molecular formulas:
Potassium hydrogen phthalate: HKC8H4O4
Acetic acid: C2H4O2
Ascorbic acid: C6H8O6
Assume that all 3 acids are monoprotic acids.



Mass of KHP used for standardization (g) 0.5464
Volume of NaOH required to neutralize KHP (mL) 13.31
Volume of vinegar sample titrated (mL) 5.00
Volume of NaOH required to neutralize vinegar in (mL) 8.40
Molecular weight of ascorbic acid (g/mol) 176.1271
Volume of NaOH required to neutralize ascorbic acid in Vitamin C tablet (mL) 13.85

What is the Molecular Weight of KHP (HKC8H4O4) in g/mol? 204.2220 
How many moles of KHP were used in the standardization of the NaOH solution? 0.002595
Calculate the concentration of NaOH solution in (mol/L). 0.188433
Calculate the molarity of the vinegar solution (mol/L). 0.303377

Two enterprising chemistry students decide to make analternative to alka-seltzer tablets, replacing the asprin(acetylsalicylic acid) with vitamin C (ascorbic acid). Thefollowing table shoes one of the formulations they tried for a 5 gtablet.

Ingredient -Formula -Quantity (mg)

soduim bicarbonate - NaHCO3 - 1991

citric acid - H3C6H5O7 - 886

Vitamin C - HC6H7O6 - 370

inert binder - noformula given -1753

Total mass: 5000

When the tablet dissolves in water, it fizzes as thebicarbonate reacts with the citric acid and the vitamin C. Whatmass of the NaHCO3 reacts with the vitamin C?

Citric acid is triprotic, and reacts with base to form thecitrate ion (C6H5O7^3-). Write the overall net ionic reaction forthe acidification of NaHCO3 by citric acid, giving CO2 as theproduct. Citric acid should be written as H3C6H5O7 in the net ionicequation, as weak acids are written in the molecular form eventhough they slightly ionize.

What mass of the NaHCO3 reacts with the citric acid?

What is the mass of CO2 released in this reaction?

The remaining NaHCO3 is available to neutralize stomah acid.What mass of stomach HCl could be neutralized by one tablet?

I really don't understand this so all help is appreciated.