Oxidation state of potassium is +1, while the most common oxidation state of Br is -1.
Hence for charge balance the combining ratio of K and Br = 1:1.
Resultant compound formed will be KBr.
Answer:
4 hydrogen atoms are needed to C5H8 to saturate it
Explanation: because C5H8 is an alkyne that contains a triple bond or alkene with 2 double bonds.
2 hydrogen atoms are needed to saturate one double bond and 4 hydrogen atoms are needed to fully Saturate a triple bond or two double bonds.
Maddie is the best for 100 points-
Generally, Sulfur will take on 2 electrons and make a -2 ion, unless it is in the presence of a highly electronegative atom like Oxygen then it can form a +6 ion.
Answer:
Concentration of hydroxide-ion at equivalence point =
Explanation:
1 mol of reacts with 1 mol of KOH to produce 1 mol of
At equivalence point, all gets converted to .
Moles of produced at equivalence point is equal to moles of KOH added to reach equivalence point.
So, moles of produced =
Total volume of solution at equivalence point = (25.00+43.76) mL = 68.76 mL
Concentration of at equivalence point =
produced at equivalence point is due to hydrolysis of . We have to construct an ICE table to calculate concentration of at equivalence point.
I:0.0897 0 0
C: -x +x +x
E: 0.0897-x x x
species inside third bracket represent equilibrium concentrations
So,
or,
So, M =
So, concentration of hydroxide-ion at equivalence point = x M =