CH2=CH-CH3 + BrH2O --->
what should have be after reaction?
w(Br)=1,6 %
V(C3H6)=1,12l
m(BrH2O)=?
And how I could find mass?

I don't understand what you are asking for, especially :

Quote:

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w(Br)=1,6 %
V(C3H6)=1,12l
m(BrH2O)=?
And how I could find mass?

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But the reaction gives rise to two possible products.
The first one, water does not participate;



and the second, all of them participate;