Hey I don’t know the answers but try to use the app Socratic or photomath
The Molarity of the solution is given by:

--- (A)
But NaCl, which is a solute, is given in grams.
Therefore, first, we need to convert grams into moles.
Molecular weight of NaCl = 58.44 grams/mole.
So,
117 grams * (moles/ 58.44 grams) =
2.00 moles of NaClNow that we have moles of NaCl, plug in the values in (A):
(A) => Molarity = (2 / 2.7 ) =
0.741 moles/litreThe correct answer is:
0.741 moles/litre = Molarity
When the glass of salt water was outside, the water evaporated leaving behind the minerals, in this case, salt.
Explanation:
More is the mass of directly attached atom more will be the priority of the group attached to the alkyl or aryl chain.
Atomic mass of oxygen is 16, nitrogen is 14, carbon is 12, and hydrogen is 1.
This means that as the atomic mass of oxygen is greater than rest of the given atoms. So, priority will be given to the oxygen atom.
Thus, we can conclude that the given groups are placed in order of decreasing priority as follows.
-OH >
> -COOH > -H