Sodium hydrogen carbonateNaHCO3, 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 acidHCl, which the stomach secretes to help digest food. Drinking a glass of water containing dissolvedNaHCO3neutralizes excessHClthrough this reaction:HCl(aq)+NaHCO3(aq)→NaCl(aq)+H2O(l)+CO2(g)TheCO2gas produced is what makes you burp after drinking the solution. Suppose the fluid in the stomach of a woman suffering from indigestion can be considered to be200.mLof a0.016MHClsolution. What mass ofNaHCO3would she need to ingest to neutralize this muchHCl? Be sure your answer has the correct number of significant digits.

Question
Asked Sep 30, 2019
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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

(l)

+
CO2

(g)The

CO2

gas produced is what makes you burp after drinking the solution.

 

Suppose the fluid in the stomach of a woman suffering from indigestion can be considered to be

200.mL

of a

0.016

M

HCl

solution. What mass of

NaHCO3

would she need to ingest to neutralize this much

HCl

? Be sure your answer has the correct number of significant digits.

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Expert Answer

Step 1

The moles of HCl present in fluid is determined first....

HC[(aq) + NaHCO, (aq) —> NaCl(s) + н,0() + со,(g)
Moles of HCl(aq) = Molarityx Volume in L
3D 0.016Mx200х103 L
= 3.2x103 moles
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HC[(aq) + NaHCO, (aq) —> NaCl(s) + н,0() + со,(g) Moles of HCl(aq) = Molarityx Volume in L 3D 0.016Mx200х103 L = 3.2x103 moles

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