The answer is: "second order" .
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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
The chemical behavior of an atoms is determine by the formation or destruction of chemical bonds. The chemical bonds are the result of the interaction of the electrons of the atoms. Chemical properties of the atoms are given by how attached are the shell electrons attached to the nucleus and how they interact with other atoms. Chemical changes are the result of exchange valence electrons of the atoms. So, <span>the answer is the atomic particle that determines the chemical behavior of an atom is the electron, because it is the particle that is active in chemical bonding.</span>
Autotrophs are organisms that make their own food. Example: plants
Solution :
It is given that dilute hydrochloric acid is titrated with sodium carbonate solution.
of a 0.100 of hydrocholric acid is used.
Thus, 10 mL of the 0.1 molar dilute hydrochloric acid is titrated with 16.2 mL of Sodium carbonate solution.
The equation would be :
Now we know that that the
Molarity =
For hydrochloric acid solution,
∴ n = 0.01 moles.
Now for one mole of , two moles of HCl acid is used.
For one mole of HCl, one-half mole of is required.
Therefore, for 0.01 mole of HCl, we require 0.005 mole of .
Hence, 0.01 mole of hydrochloric acid and 0.005 mole of solution is used.
The color turns red when methyl orange indicator is used in HCl acid.