<u>Answer:</u> The solubility of carbon dioxide at 5.50 atm is
<u>Explanation:</u>
To calculate the molar solubility, we use the equation given by Henry's law, which is:
Or,
where,
are the initial concentration and partial pressure of carbon dioxide
are the final concentration and partial pressure of carbon dioxide
We are given:
Putting values in above equation, we get:
Hence, the solubility of carbon dioxide at 5.50 atm is
Answer:
1.75M
Explanation:
Given parameters:
Initial volume of acid, HCl = 450mL = 0.45L
Initial concentration = 3.5M
Final volume = 0.9L
Unknown:
Final concentration = ?
Solution:
This is a dilution problem in which a particular concentration is made from the stock of known concentration.
One important approach to solve this problem is to remember that the number of moles in the initial and final solution will always remain the same.
Since we know this;
Number of moles = molarity x volume;
let us find the number of moles of the initial solution;
Number of moles = 3.5 x 0.45 = 1.58moles
Now, to find the new molarity;
Molarity =
Input the parameters;
Molarity = = 1.75M
Answer:Mg is aalkline eath meat belongs to group 2.
Explanation:
Its atomic number is 12 and atomic mass is 24.3
Br- < Se2- < As3- < Sr2+ < Rb+
I hope this helps although I'm not a hundred percent sure!
Answer:
Number of protons and electrons stay constant
Number of neutrons Differs
Explanation:
Isotopes are the different kinds of same element. Now, as we know quite well that an element can only have one atomic number, this means that the proton number is irrespective of the type of atom
Of the element. The proton number is the identity of the element.
As we know that the atom is electrically neutral, it means the number of electrons will always stay the same too.
Since isotopes are not alike in every respect, the number of neutrons differ. This means they have same atomic numbers but different mass numbers.