Answer : The mass of calcium in sample B is, 0.310 grams.
Explanation :
Law of definite proportion : It is defined as a given compound always contains exactly the same proportion of elements by weight.
Now we have to calculate the mass of calcium in sample B.
As, first sample of 0.146 g of fluorine = second sample of 0.294 g of fluorine
So, first sample of 0.154 g of calcium = second sample of [tex]\frac{0.154}{0.146}\times 0.294=0.310g[/tex] of calcium
Therefore, the mass of calcium in sample B is, 0.310 grams.
