Sodium Sulfate
= Na2(SO4) meaning there are two ions of Na+ in one mole of Sodium Sulfate the M
stands for Molarity, defined as Molarity = (moles of solute)/(Liters of
solution), So if the Na2SO4 solution is 3.65M that means one Liter of has 3.65
moles of Na2SO4, the stoichiometry of Na2SO4 shows that there would be two Na+
ions in solution for every one Na2SO4.
Therefore if
3.65 moles of Na2SO4 was to dissolve, it would produce 7.3 moles of Na+, and
since this is still a theoretical solution, we can assume 1 L of solution.
Finally we find
[Na+] = 2*3.65 = 7.3M
Use the same
logic for parts b and c
Answer: Li < Na < K is the answer
Explanation:
<span>the movement of the liquid in a thermometer is related to the motion of the molecules of the liquid when they are heated</span>
The chemical formula of chromium (II) nitrate is as shown below.
Cr₂NO₃
The number in the subscript of the chemical formula of the given element signifies the number of atom or ions of the given element. In this regard, based on the chemical formula written for chromium (II) nitrate, the number of chromium ions would have to be 2.
<em>Answer: 2</em>