Question

A package of Tums® contains 150 tablets and costs $6.19. Suppose that one Tum® tablet neutralized 0.01015 moles of HCl, calculate the following:

a. Cost per tablets for Tums®

b. Cost per moles of HCl for Tums® tablets

Answer 1

This problem can easily solved by unitary method.

a)

150 tablets costs = $ 6.19

1 tablet's cost = $ 6.19 / 150

1 tablet's cost = $ 0.041266

b)

1 tablet neutralized 0.01015 moles of HCl

Or

0.01015 moles of HCl requires = 1 tablet

1 mole of HCl requires = 1 / 0.01015 tablet

1 mole of HCl requires = 98.522 tablets

from part a ) 1 tablet's cost = $ 0.041266.

So cost of 98.522 tablets = 98.522* $ 0.041266 = $ 4.065

hence cost of 1 mole HCl = $ 4.065