Answer:
156.4g K
Explanation:
I'm not sure if it is correct but I think it should be this
What do we know so far?: 2K + 1Cl2 -> 2KCl, 2 mol of Cl2
What are we looking for?: #g of K
What is the ratio of K to Cl2?: 2:1
Set up equation: 2molCl2 x
Cancel unwanted units: 2 x
Answer we got: 2 x 2mol K = 4mol K
Converting moles to grams: 4 x 39.1 (molar mass of K) = 156.4g K
<u>Answer:</u> The nuclear binding energy of the given element is
<u>Explanation:</u>
For the given element
Number of protons = 3
Number of neutrons = (6 - 3) = 3
We are given:
M = mass of nucleus =
Calculating mass defect of the nucleus:
Converting this quantity into kg/mol, we use the conversion factor:
1 kg = 1000 g
So,
To calculate the nuclear binding energy, we use Einstein equation, which is:
where,
E = Nuclear binding energy = ? J/mol
= Mass defect =
c = Speed of light =
Putting values in above equation, we get:
Hence, the nuclear binding energy of the given element is