Answer:
C8H12F6
Explanation:
To solve this question we need to find the moles of each atom in order to find the empirical formula (The empirical formula is defined as the simplest whole-number ratio of atoms present in a molecule). Using the empirical formula and the molar mass we can find molecular formula as follows:
<em>Moles C:</em>
2.35g * (1mol / 12g) = 0.1958 moles C
<em>Moles H:</em>
0.294g (1mol /1g) = 0.294 moles H
<em>Moles F -Molar mass: 19.0g/mol-: </em>
Mass F: 5.43g - 2.35g C - 0.294g H = 2.786g F * (1mol / 19.0g) = 0.1466 moles F
The moles of atoms dividing in the moles of F (Lower number of moles) produce the simplest ratio as follows:
C = 0.1958mol C / 0.1466mol F = 1.33
H =0.294mol H / 0.1466mol F = 2
F = 0.1466 mol F / 0.1466mol F = 1
As the empirical formula requires whole numbers, this ratio multiplied 3 times:
C = 4
H = 6
F=3
The empirical formula is:
C4H6F3
With molar mass of:
4C = 12*4 = 48
6H = 1*6 = 6
3F = 19*3 = 57
The molar mass is: 48g/mol + 6g/mol + 57g/mol = 111g/mol
As we know the molecule has a molar mass between 219-225g/mol and the empirical formula is 111g/mol, 2 times empirical formula will produce a molecule with the molar mass of the molecule, that is:
<h3>C8H12F6</h3>
The correct option is C.
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1- One mole is = 6.02 x 10^23 of anything, So one mole of atoms is 6.02x10^23.
2- when the balloon contains 0.15 moles of Co2 gas so:
the no.of molecules of Co2 = 0.15 x 6.02x 10^23
= 9.0 x 10^22
Answer:
See explanation
Explanation:
The reaction that we are considering here is quite a knotty reaction. It is difficult to decide if the mechanism is actually E1 or E2 since both are equally probable based on the mass of scientific evidence regarding this reaction. However, we can easily assume that the methylenecyclohexane was formed by an E1 mechanism.
Looking at the products, one could convincingly assert that the reaction leading to the formation of the two main products proceeds via an E1 mechanism with the formation of a carbocation intermediate as has been shown in mechanism attached to this answer. Possible rearrangement of the carbocation yields the 3-methylcyclohexene product.
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