Two samples of calcium fluoride are decomposed into their constituent elements. The first sample produced 0.154 g of calcium and
1 answer:
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 of calcium
Therefore, the mass of calcium in sample B is, 0.310 grams.
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Answer:
b. 0.453 mol
Explanation:
To convert atoms to moles, use Avogadro's number (6.022×10²³). Divide the amount of atoms that are given by Avogadro's number. You should get 0.453 mol.
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