Hey, how am I meant to find the isomer for this question?
Hey, so isomers are just the same molecule with a different structure, it's a bit hard to describe without diagrams but for example, both 1-bromo-1-chloropentane and 1-bromo-2-chloropentane are both isomers of that molecule. So, the isomers of C3H6BrCl are:
1-bromo-1-chloropentane
1-bromo-2-chloropentane
2-bromo-2-chloropentane
2-bromo-1-chloropentane
Those are the only isomers of C3H6BrCl so the answer is 4.
With the other q, the first thing you need to do is make an equation:
HCl + NaX --> NaCl + HX
With that you need to find the moles of hydrochloric acid that was needed to neutralise the solution so:
Moles = Concentration x Volume
= 0.100 x 0.0244
= 0.00244 moles
From above, we know that the moles of HCl equals the moles of NaX so:
nHCl=nNaX
=0.00244 moles
We know that Moles = Mass/Molar Mass so Molar Mass = Mass/Moles
MNaX= (1)/(0.00244)
= 409.8360656....g/mol
Therefore, the molar mass of NaX is 410 g/mol, I think, pretty sure what was the answer? Hope this helps!!