Calcium carbonate, CaCO_3, is the active ingredient in Turns chewy delights anta

Question

Calcium carbonate, CaCO_3, is the active ingredient in Turns chewy delights antacid tablets. A. If one tablets contains 1177 mg of calcium carbonate, how many calcium ions are in one Tablet? What is the initial measurement ____ What unit is needed _____ List three conversion factors you will need to use to solve this problem ____ Use the G.P.S. method to determine the answer. Show how units cancel. How many moles of oxygen, O, are in 0.152 moles of calcium carbonate CaCO_3. Show your work. 1 point

Explanation / Answer

Number of moles of CaCO3,n = mass /molar mass

n= 1177*10^-3 g / (100 g/mol)

n= 0.01177 mol

1 mole of CaCO3 contains 1 mole of Ca2+ ions

0.01177 moles of CaCO3 contains 0.01177 moles of Ca2+ ions = 0.01177 *6.023*10^23 ions

= 7.09*10^21 ions

1 mole of CaCO3 contains 3 moles of O

0.152 moles of CaCO3 contains 3*0.152=0.456 moles of O

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