Answer:
5 tablets are required for you to take a 0.35 g dose of calcium.
Explanation:
The amount of calcium required = 0.35 g
Percentage of calcium by mass in calcium carbonate = 20%
Total mass of 1 tablet of multi-vitamin =350 mg = 0.35 g
let the number of tablet of multi-vitamin be x
Total mass of tablets = x × 0.35
[tex]\%=\frac{\text{Mass of an element}}{\text{Total mass of tablets}}\times 100[/tex]
[tex]20\%=\frac{0.35 g}{x\times 0.350 g}\times 100[/tex]
x = 5
5 tablets are required for you to take a 0.35 g dose of calcium.
