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Determine how many kgs of Ca are there in a 205-pound man If 1.4 percent of the mass of a human body is calcium(Ca)?

An antacid tablet dissolves in H₂O the fizz is due to a reaction between citric acid (H₃C₆H₅O₇) and sodium hydrogen carbonate (sodium bicarbonate, NaHCO₃) determine how many moles of CO₂ can be formed if one tablet has 0.0119 mol Sodium bicarbonate or sodium hydrogen carbonate is dissolved

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