Each tablet contains 5.26E-3 mol Ca.
How many g Ca? That's 5.26E-3 mols x atomic mass Ca = approx 0.2 g (but you need to do that more accurately) or 200 mg. Then 200 mg/tablet x # tablets = 700 for the minimum. Solve for # tablets and if you get a fraction round to the larger whole tablet.
The daily RNI of calcium for adolescent females is 700 to 1100 mg. A supplement tablet contains 950 mg of calcium citrate. Each grams of calcium citrate contains 5.26 x 10^-3 mol calcium. How many tablets would a 16 year old female have to take to meet her daily RNI?
(i found the molar mass of calcium citrate multiplied it by the number of moles and then divided it to 0.95 but its wrong)
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i got the answer as four tablets.Is it correct?
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