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:
About 5 times faster.
Explanation:
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In this case, since the Arrhenius equation is considered for both the catalyzed reaction (1) and the uncatalized reaction (2), one determines the relationship between them as follows:
By replacing the corresponding values we obtain:
Such result means that the catalyzed reaction is about five times faster than the uncatalyzed reaction.
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