Answer : The number of moles of water will be, 1.235 moles
Solution : Given,
Mass of
= 42 grams
Molar mass of
= 34 g/mole
First we have to calculate the moles of 

Now we have to calculate the moles of water.
The balanced chemical reaction will be,

From the balanced reaction, we conclude that
As, 2 moles of
decomposes to give 2 moles of water
So, 1.235 moles of
decomposes to give 1.235 moles of water
Therefore, the number of moles of water will be, 1.235 moles
The molecular formula of a compound having the empirical formula C9H17O is calculated as below
(C9H17O)n =847.56
{(12 x9 + 1 x17 + 1 x16)}n= 847.56
147 n = 847.56
divide bot
h side by 147
n= 6
(C9H17O)6 therefore the molecular formula = C54H102O6
they have a negligible mass and they also have a negative charge so they have an association with the magnetic field. Do you remember polar? So electrons are negative and they attract the nucleus which is overall postivie (since protons are positive) so they act as magnetic since they both have an attraction