What is the concentration in molarity of an aqueous solution which contains 18.41% by mass acetonitrile (MM = 41.05 g/mol)? The
1 answer:
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Answer:
(C) bent 109
(2)
Explanation:
The number of bond pairs = 2
Number of lone pairs = 2
The general formula is -
According to VSEPR theory, the atoms will form a geometry in such a way that there is minimum repulsion and maximum stability.
The central atom has 2 bond pairs and 2 lone pairs. Hybridization is sp³. The geometry is bent shape which has an angle of approximately 105.5°. It original has angle of 109.5° but due to lone pair repulsion, it reduces.
Answer - (C) bent 109
Square pyramidal possibility:- (2)
The central atom has 5 bond pairs and 1 lone pair. Hybridization is sp³d. The geometry is square pyramidal in which the equatorial bonds has an angle of 120° and axial bond has an angle of 90°.
Answer:
78.46 grams of 2-bromopropane could be prepared from 25.5 g of propene
Explanation:
Moles of propene =
According to reaction, 1 mole of propene gives 1 mole of propane.
Then 0.6538 moles of bromo-propane will give:
78.46 grams of 2-bromopropane could be prepared from 25.5 g of propene.