You want the saturated vapour pressure,
P
SVP
.
Explanation:
This is a function of temperature only, and at
283
⋅
K
this site reports that the vapour pressure of water,
P
SVP
, is
9.2
⋅
m
m
⋅
H
g
.
And so,
P
Measured
=
P
gas
+
P
SVP
,
P
Gas
=
P
Measured
−
P
SVP
750
⋅
m
m
⋅
H
g
−
9.2
⋅
m
m
⋅
H
g
=
741.8
The following of the macro molecular collide is all of the above
Answer:
We need 226 grams of FeS
Explanation:
Step 1: Data given
Mass of FeCl2 = 326 grams
Molar mass FeCl2 = 126.75 g/mol
Step 2: The balanced equation
FeS + 2 HCl → H2S + FeCl2
Step 3: Calculate moles FeCl2
Moles FeCl2 = 326 grams / 126.75 grams
Moles FeCl2 = 2.57 moles
Step 4: Calculate moles FeS needed
For 1 mol H2S and 1 mol FeCl2 produced, we need 1 mol FeS and 2 moles HCl
For 2.57 moles FeCl2 we need 2.57 moles FeS
Step 5: Calculate mass FeS
Mass FeS = 2.57 moles * 87.92 g/mol
Mass FeS = 226 grams FeS
We need 226 grams of FeS
Answer:
The solubility curve helps us to predict which substance will crystallize out first from a solution containing two or more solutes. The solubility curve helps us to compare the solubilities of different substances at the same temperature.