How do catalysts increase the rate of a chemical reaction?
2 answers:
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Avagadros number states that 1 mol of any substance is made of 6.022 x 10²³ units.
these units could be atoms, molecules or formula units.
therefore 1 mol of Calcium iodide is made of 6.022 x 10²³ formula units
so if 6.022 x 10²³ formula units make up 1 mol
then 1.20 x 10²⁵ formula units - make = 19.9 mol
there are 19.9 mol of CaI₂ present
Answer: and
Explanation:
According to the Bronsted-Lowry conjugate acid-base theory, an acid is defined as a substance which looses donates protons and thus forming conjugate base and a base is defined as a substance which accepts protons and thus forming conjugate acid.
For the given chemical equation:
Here, is loosing a proton, thus it is considered as an acid and after losing a proton, it forms
which is a conjugate base.
And, is gaining a proton, thus it is considered as a base and after gaining a proton, it forms
which is a conjugate acid.
Hence, the correct answer is D.