Answer: 88.2 g
Solution:
1) Chemical equation:
<span>2Al (s) + 3Fe(NO3)2 (aq) → 3Fe (s) + 2Al(NO3)3 (aq)
2) Theoretical molar ratios
2 mol Al : 3 mol Fe(NO3)2 : 3 mol Fe : 2 mol Al(NO3)3
3) Starting mass of pure iron nitrate
% = (mass of iron nitrate / mass of solution) * 100 = 87.5
=> mass of iron nitrate = 87.5 * mass of solution / 100
mass of solution = 325 g
=> mass of iron nitrate = 87.5 * 325 g / 100 = 284.375 g
4) moles of iron nitrate
moles = mass in grams / molar mass
molar mass of Fe(NO3)2 = 179.85 g/mol
moles = 284.375 g/ 179.85 g/mol = 1.58 moles Fe(NO3)2
5) proportion:
x 3 mol Fe
--------------------------- = ----------------------
1.58 mol Fe(NO3)2 3 mol Fe(NO3)2
Clear x:
x = 1.58 mol Fe
6) Convert 1.58 mol Fe into grams
mass = number of moles * atomic mass
atomic mass of iron = 55.845 g / mol
mass = 1.58 moles * 55.845 g/mol = 88.24 g
Rounded to 3 significant figures: 88.2 grams of Fe.
</span>
7.8049856 g of aluminium phosphate is produced from 7.5 g of lithium phosphate in this balanced equation.
<h3>What are moles?</h3>
A mole is defined as 6.02214076 ×
of some chemical unit, be it atoms, molecules, ions, or others. The mole is a convenient unit to use because of the great number of atoms, molecules, or others in any substance.
Given data:
→ 
Moles of 7.5 g of lithium phosphate.
The molar mass of lithium phosphate is 115.79 g/mol.
Moles = 
Moles =
Moles = 
Moles = 0.06477243285
Now we will compare the moles of
with
.
: 
2 : 2
0.385 : 2÷2× 0.064 = 0.064 mol
Mass of
:
Mass of
= moles × molar mass
Mass of
=0.064 mol × 121.9529 g/mol
Mass of
= 7.8049856 g
Hence, 7.8049856 g of aluminium phosphate is produced from 7.5 g of lithium phosphate in this balanced equation.
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The answer is microvilli.
Yes this statement is true because the concentration is two help determine whether the reaction is moving forward or backwards direction
Here it is at standard condition and delta g not is always the same because it denote that the reactant/product are at standard temperature or product as the reaction goes toward equilibrium delta g change because reaction is proceeding forward and delta g not is standard change in free energy between reactant and product. delta g is used to find gibbs free energy in nonstandard conditions while delta g naught is used to determine gibbs free chemical reaction energy under normal conditions. that's why this statement is true.
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Yes, the crystals will have more time to form and therefore are more likely to be larger compared to one that is cooled quickly.