Calcium carbonate is often used as an antacid. Your stomach acid is composed of HCl at a pH of 1.5. If you ate t much Turkey and need to neutralize 15.0 mL of stomach acid, how many grams of calcium carbonate would you need to take

0.0237 g of calcium carbonate would be required to neutralize the given amount of HCl

Explanation:

pH is defined as the negative logarithm of hydrogen ion concentration present in the solution

     .....(1)

Given value of pH = 1.5

Putting values in equation 1:

Molarity is defined as the amount of solute expressed in the number of moles present per liter of solution. The units of molarity are mol/L. The formula used to calculate molarity:

      .....(2)

We are given:

Volume of solution = 15.0 mL

Molarity of HCl = 0.0316 M

Putting values in equation 2:

The chemical equation for the reaction of HCl and calcium carbonate follows:

By the stoichiometry of the reaction:

2 moles of HCl reacts with 1 mole of calcium carbonate

So, of HCl will react with = of calcium carbonate

The number of moles is defined as the ratio of the mass of a substance to its molar mass.

Moles of calcium carbonate =

Molar mass of calcium carbonate = 100.01 g/mol

Putting values in the above equation:

Hence, 0.0237 g of calcium carbonate would be required to neutralize the given amount of HCl

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.