The active ingredient in Tums has the following mass percent composition: 40.0% Ca, 12.0% C, and 48.0% O. (2.7, 6.3, 7.1, 7.4, 7.5)
a. If the empirical and molecular formulas are the same, what is its molecular formula?
b. What is the name of the ingredient?
c. If one Tums tablet contains 500. mg of this ingredient and a person takes two tablets a day, how many calcium ions does this person obtain from the Tums tablets?
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