Sodium hydrogen carbonate , also known as sodium bicarbonate or "baking soda", can be used to relieve acid indigestion. Acid indigestion is the burning sensation you get in your stomach when it contains too much hydrochloric acid , which the stomach secretes to help digest food. Drinking a glass of water containing dissolved neutralizes excess through this reaction: (aq) (aq) (aq) (l) (g) The gas produced is what makes you burp after drinking the solution. Suppose the fluid in the stomach of a man suffering from indigestion can be considered to be of a M solution. What mass of would he need to ingest to neutralize this much baking soda?

Sodium hydrogen carbonate (NaHCO3), also known as sodium bicarbonate or "baking soda", can be used to relieve acid indigestion. Acid indigestion is the burning sensation you get in your stomach when it contains too much hydrochloric acid (HCl), which the stomach secretes to help digest food. Drinking a glass of water containing dissolved NaHCO3 neutralizes excess HCl through this reaction: HCl (aq) + NaHCO3 (aq)--> NaCl (aq) + H2O (I) + CO2 (g).

The CO2 gas produced is what makes you burp after drinking the solution. Suppose the fluid in the stomach of a man suffering from indigestion can be considered to be 50.0 mL of a 0.034 M HCl solution. What mass of NaHCO3 would he need to ingest to neutralize this much HCl? Be sure your answer has the correct number of significant digits.

Answer:

0.143 g

Explanation:

The balanced reaction of neutralization is:

HCl(aq) + NaHCO3 (aq)--> NaCl(aq) + H2O(I) + CO2(g)

Thus, by the stoichiometry, it is necessary 1 mol of NaHCO3 neutralizes 1 mol of HCl. The number of moles of HCl presented in the stomach is the volume (50.0 mL = 0.05 L) multiplied by the concentration (0.034 M), which is 0.0017 mol.

So, it's necessary 0.0017 mol of baking soda. The molar mass of it is 84 g/mol, so the mass needed is the molar mass multiplied by the number of moles:

m = 84 * 0.0017

m = 0.143 g