How many grams of lithium fluoride is required to make 1.2 L of a 3.5 M solution?
1 answer:
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Answer:
Explanation:
Write the balance chemical equation ,
initial concenration of
lets assume that degree of dissociation=
concenration of each component at equilibrium:
as is very small then we can neglect
therefore ,
Eqilibrium concenration of
Answer:
Option E!
Explanation:
If we were to draw the lewis dot structure for IBr2 -, we would first count the total number of valence electrons ( " available electrons " ). Iodine has 7 valence electrons, and so does Bromine, but as Bromine exists in 2, the total number of valence electrons would be demonstrated below;
Don't forget the negative on the Bromine!
Now go through the procedure below;
1 ) Place Iodine in the middle and draw single bonds to each of the bromine.
2 ) Add three lone pairs on each of the Bromine's
3 ) Now we have 6 electrons left, if we were to exclude the electrons shared in the " single bonds. " This can be placed as three lone pairs on Iodine ( central atom )!
The molecular geometry can't be linear, as there are lone pairs on the atoms. This makes it bent.