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The daily output of stomach acid (gastric juices) is 1000 to 1400ml. Prior to a meal, stomach acid (HCl) typically has a ph of1.42.

The antacid Maalox contains 200mg of Al(OH)3 per tablet. Write theneutralization equation.
Express your answer as a chemical equation. Identify all of thephases in your answer.

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Deanna HettingerLv2

19 May 2019

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The daily output of stomach acid (gastric juices) is 1000mL to1400mL. Prior to a meal, stomach acid (HCl) typically has a pH of1.42.
Part A-What is the H3O+ of stomach acid?
Part B- The antacid Maalox contains 200mg of Al(OH)3 per tablet.Write the neutralization equation.
Part C-Calculate the mL of stomach acid neutralized by 3 tablets ofMaalox.
Part D-The antacid Milk of Magnesia contains 400mg Mg(OH)2 perteaspoon. Write the neutralization equation.
Part E-Calculate the number of mL of stomach acid neutralized by 1tablespoon of milk of magnesia (1 tablespoon=3 teaspoons)

Ok, I have part A and B, but need help with the rest
A=3.8*10^-2M

The daily output of stomach acid (gastric juices) is 1000 mL to 2000 mL. Prior to a meal, stomach acid (HCl) typically has a pH of 1.42.

a. Calculate the milliliters of stomach acid neutralized by two tablets of Maalox.

Express your answer to two significant figures and include the appropriate units.

b. Calculate the number of milliliters of stomach acid neutralized by one tablespoon of milk of magnesia (one tablespoon = three teaspoons).

Express your answer to two significant figures and include the appropriate units.

The pH in your stomach varies considerably depending on whether or not food is being actively digested. During digestion, stomach pH typically ranges from 1-2, while resting pH generally ranges from 3-4. Antacids are a class of medicines which help neutralize stomach pH, particularly for those who might experience acid reflux. A common chemical component of antacids is aluminium hydroxide â Al(OH)₃, a single molecule of which can neutralize 3 free hydrogens. Assume that each dose of your antacid medicine contains 300mg of aluminium hydroxide (MW = 78 g/mol) and that the volume of your stomach is 0.90L.

Part A) Letâs say that after youâve eaten you know that the pH in your stomach is 1.50 and that you will experience acid reflux until the pH in your stomach is at least 4.0. How many doses of antacid would you need to take in order to raise your pH to or above 4.0 (assume you can only take full doses â no partial doses)?

Part B) Assuming that the antacid has a clearance rate from the stomach of 1 mM/hr and that stomach acid (H⁺) is produced at a rate of 0.5 mM/hr, and that you took one more dose of antacid than you needed to get your stomach pH above 4 (add 1 to your previous answer), for how long will the antacid you took keep your stomach pH above 4? Assume steady state clearance of the antacid

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