Answer:
When SO
2
is passed through an acidified solution of H
2
S, sulphur is precipitated out according to the reaction.
2H
2
S+SO
2
→2H
2
O+3S
Answer:
The number of moles is 0.15 moles
Explanation:
Given data
The volume of the solution is 25.0 mL = 25 *10^-3 L
The molarity of the solution is 6.0 M
This means the number of moles in this solution is: 6.0 M * 25 *10^-3 L = 0.15 moles
This solution will be diluted, by increasing its volume to 100 mL = 100*10^-3 L
The new solution has 0.15 moles in 100 mL
The Molarity of this solution will change, but the number of moles will not change.
The number of moles is still 0.15 moles
<span>The
molar mass of the substance represents the mass of the substance in one mole. You
can see the molar masses of the substance in interest in the periodic table of
elements. It is mostly seen at the right bottom side of the element name. In
here, you have 25 g of sodium. You should know by now that sodium has a molar
mass of 23 grams per mole. To get the number of moles of sodium, divide 25.0
grams by 23 grams per mole. The answer is 1.09 moles of sodium.</span>
Benzoxazole is an aromatic organic compound with a molecular formula C7H5NO, a benzene-fused oxazole ring structure, and an odor similar to pyridine.[1][2] Alhtough benzoxazole itself is of little practical value, many derivatives of benzoxazoles are commercially important.
Being a heterocyclic compound, benzoxazole finds use in research as a starting material for the synthesis of larger, usually bioactive structures. Its aromaticity makes it relatively stable, although as a heterocycle, it has reactive sites which allow for functionalization.
