Answer:
When the solution turns clear, either at the end of the reaction or when you add sufficient cyclohexene
Explanation:
The colour of bromine in the solution is usually yellow, however when the solution turns clear, this shows that all the bromine has been consumed.
Another way to make sure that all the bromine molecules are consumed is by addition of an unsaturated hydrocarbon like cyclohexene. Cyclohexene will consume the bromine molecules and the solution will become clear, while the cyclohexene becomes more saturated by becoming bromo cyclohexane.
Answer:
100 N north and 100 N south
The molar concentration of potassium ions in a 0. 250 m K₂SO₄(aq) solution is 2.
<h3>What is molar concentration?</h3>
The molar concentration of a solution is the presence of solute in one unit of a solution.
Molar concentration = number of moles / volume
The volume is given 0.250 m
To calculate the number of moles:
There will be 2 moles of potassium and 1 mole of sulfate in one L of the solution.
So in 0.250 L
0.250 x 2 x 1 = 0.500
The total number of moles of potassium and sulfate ion are 0.500
Now, putting the value:
Molar concentration = number of moles / volume
0.500 / 0.250 = 2
Thus, the molar concentration is 2.
To learn more about molar concentration, refer to the below link:
brainly.com/question/21841645
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Answer:I believe you mean Mg(HCO3)2. Since I have never heard of the element MA. but if you are calculating using mg(HCO3)2 your molar mass/ molecular mass will be 146.3387
Explanation:
Check table T and use the concentration equation. Molarity= moles of solute/ liters of solution.
So 0.240 = x/ 1.65 once u find the # of miles of solute (x=.396) and substitute that
Wait I'm not sure if it's correct
