Answer:
See Explanation
Explanation:
Given:
moles M = 0.600 mole
moles F = excess (for rxn stoichiometry)
Formula Weight (F.Wt.) of F = 19 grams/mole (from Periodic Table)
Yield in grams = 46.8 grams (assuming theoritical yield)
Rxn: M + F₂ => MF₂
0.600mol Excess 0.600mol (1:1 rxn ratio for M:MF₂)
a. moles of F in MF₂ = 2(0.600) moles F = 1.2 moles F
b. mole weight MF₂ = 46.8g/0.600mol = 78g/mole
F.Wt. MF₂ = F.Wt. M + 2(F.Wt. F)
=> mass M = F.Wt. M = [F.Wt. MF₂ - 2(F.Wt. F)] = 78g/mol. - 2(19g/mol.)
= (78 - 38) grams/mole = 40 grams/mole
c. Calcium (Ca) has F.Wt. = 40 grams/mole (compared to Calcium on Periodic Table.
Volume of the peat moss = 
= 
Convert the above volume into 
Thus, volume in is:
Volume of peat moss = 
= 
Now,
Total volume by using area and depth of the peat moss = 
= 
= 
Convert above values in 
to get the value of volume in :
Thus, volume in is:
Total volume = 
= 
= 
Now, number of bags is calculated by the ratio of total volume of the peat moss to the volume of the peat moss.
Substitute the values of volume in above formula:
= 
≅ 
bags
Thus, number of bags of peat moss are needed to cover an area measure 
by 
to a depth of 
are bags.
Answer:
They both have a cell membrane, however a plant also has a cell wall.
Explanation:
Answer:
<h2>3.18 × 10²³ atoms</h2>
Explanation:
The number of atoms can be found by using the formula
N = n × L
where n is the number of moles
N is the number of entities
L is the Avogadro's constant which is
6.02 × 10²³ entities
From the question we have
N = 0.529 × 6.02 × 10²³
We have the final answer as
<h3>3.18 × 10²³ atoms</h3>
Hope this helps you
It is going through a physical change
