Answer:
A precipitate will be formed
Explanation:
The Ksp equilibrium of Fe(OH)₃ is:
Fe(OH)₃ (s) ⇄ Fe³⁺(aq)+ 3OH⁻(aq)
And its expression is:
Ksp = 4x10⁻³⁸ = [Fe³⁺] [OH⁻]³
<em>Where the concentrations are concentrations in molarity in equilibrium,</em>
We can write Q as:
Q = [Fe³⁺] [OH⁻]³
<em>Where [] are actual concentrations in molarity of each specie.</em>
<em />
When Q>= Ksp; a precipitate is formed,
When Q< Ksp no precipitate is produced:
[OH⁻] = [NaOH] = 1.0x10⁻⁴M
[Fe²⁺] = 2.50x10⁻²g * (1mol / 179.85g) / 0.100L = 1.39x10⁻³M
<em>179.85g/mol is molar mass of Fe(NO₃)₂ and the volume of the solution is 0.100L = 100mL</em>
<em />
Q = [Fe³⁺] [OH⁻]³
Q = [ 1.39x10⁻³] [ 1.0x10⁻⁴]³
Q = 3.8x10⁻¹⁵
As Q >> Ksp; A precipitate will be formed
It might be 40 total needed electrons
Answer:
C) A mass of 750 g and a volume of 70 dL
.
Explanation:
Hello,
In this case, for substantiating the substance having the lowest density we need to compute it in the same units for each case as shown below:
A) 
B) 
C) 
D) 
Therefore, the lowest density corresponds to C) A mass of 750 g and a volume of 70 dL
Regards.
Explanation:
Living organisms obtain energy for cell processes from plants.
Energy for all life begins from the process of photosynthesis in plants.
Green plants manufacture food in the presence of sunlight combining carbon dioxide and water to produce glucose and oxygen gas.
- The glucose in plant stores chemical energy.
- When animals eat plant matter directly or indirectly, they release energy from the glucose.
- This is how living organisms obtains energy for cell processes.
learn more:
Cellular respiration brainly.com/question/3447259
#learnwithBrainly
Answer:
38 electrons
Explanation:
They share the same amount.
