Evaporation because the salt would dissolve in the water then boil the water and it will evaporate leaving the salt left in the bowl
There are 1.16x10²² sulfide <em>ions </em>(S²⁻) in 15 dg of sodium sulfide (Na₂S).
The equation for sodium sulfide is the following:
Na₂S → 2Na⁺ + S²⁻ (1)
So from equation (1), we can see that in<u> 1 mol</u> of <em>sodium sulfide</em> we have <u>1 mol</u> of <em>sulfide ions</em> and 2 moles of sodium ions.
First, let's find the number of moles of<em> Na₂S</em>
(2)
Where:
: is the mass of Na₂S = 15 dg = 1.5 g
: is the molar mass of Na₂S = 78.0452 g/mol
The <em>number of moles</em> of Na₂S is (eq 2):
We can find the number of ions of S²⁻ with Avogadro's number, knowing that the number of moles of Na₂S is equal to the number of moles of S²⁻ (eq 1).
Therefore, there are 1.16x10²² sulfide <em>ions </em>in 15 dg of sodium sulfide.
Find more about Avogadro's number here:
I hope it helps you!
Answer:
It will lead to a decrease in the boiling points
Explanation:
Decreasing the pressure exerted on a compound reduces d boiling points because a high temperature is needed also to boil a compound
I'm not positive, but I believe it would be one near the Rocky Mountains.