Calculate theH + concentrationmol / L) in the stomach acid. Calculate the volume of stomach acid needed to dissolve 1.0 g of tooth enamel. ?
Frequent contact with stomach acid in case of vomiting or acid regurgitation will dissolve the tooth enamel. Therefore, severe acid damage to the teeth is often seen in people suffering from bulimia. The chemical reaction of the solution of tooth enamel, Ca10 (PO4) 6 (OH) 2, with acid can be considered as an acid-base neutralization reaction:
Ca10 (PO4) 6 (OH) 2 + 8H + → 10Ca2 + + 6HPO42- + 2H2O
In this task, stomach acid is considered as an aqueous solution of HCl (hydrochloric acid) with pH = 2. The molar mass of tooth enamel, Ca10 (PO4) 6 (OH) 2, is 1000 g / mol.
A. Calculate the H + concentration (in mol / L) in the stomach acid.
B. Calculate the volume of stomach acid needed to dissolve 1.0 g of tooth enamel.