Answer:
C8H20P4F8
Explanation:
Molecular formula is based off a ratio of the molecular formula's molar mass divided by the empirical formula's molar mass.
The molar mass of the empirical formula C2H5PF2 is 98.02g. We find this by adding the molar masses of all elements in the formula, multiplied by their subscripts.
2(12.01) + 5(1.01) + 30.97 + 2(18.99) = 98.02
We then divide the molecular molar mass by the empirical molar mass.
392.16/98.02 = 4
This tells us that the molecular formula has 4 times the mass of the empirical formula. Because mass comes from the elements in the formula, we multiply all the subscripts by 4 to get the molecular formula.
2x4 = 8
5x4 = 20
1x4 = 4
2x4 = 8
So the molecular formula is C8H20P4F8
I think the correct answer is decrease in temperature
I feel like that’s the right one
Given :
Compared with a mole of oxygen-16, a mole of sulfur-32 contains:
A. twice as many atoms .
B. half as many atoms .
C. an equal number of atoms .
D. 8 times as many atoms .
To Find :
The correct option .
Solution :
One mole of atoms of oxygen-16 has a mass of 16 g, as 16 is the atomic weight of oxygen, and contains 
atoms of oxygen.
Same, one mole of sulfur-32 has 32 g mass , and contains same atoms of sulfur .
So , both have equal number of atoms .
Therefore , option C. is correct .
Hence , this is the required solution .
Answer:
10.56L
Explanation:
The following were obtained from the question given :
P1 = 845mmHg
V1 = 4.6L
P2 = 368mmHg
V2 =?
We can calculate the new volume by using Boyle's law as follows;
P1V1 = P2V2
845 x 4.6 = 368 x V2
Divide both side by 368
V2 = (845 x 4.6) / 368
V2 = 10.56L
