Bases
A base is a substance that dissociates into more hydroxide ions (-OH-) when dissolved in water. Bases are also good proton acceptors. Bases, therefore, reduce the number of H+ and increase OH- hence raising the pH of the solution.
B(aq) + H₂O(l) ⇌ BH⁺(aq) + OH⁻(aq)
Explanation:
Other properties of bases is that they are bitter to the taste and they feel slippery when touched. Strong bases are nonthlese very corrosive like acids. Bases turn red litmus paper blue. Most alkali hydroxides such as NaOH are bases.
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Answer:
[NaOH] = 0.045 M
[red dye] = 0.031 M
Explanation:
The NaOH and the red dye will not react between them, so, the process that it's occurring is only a dilution. The final volume of the solution will be the volume of the flask, which is 100 mL.
The number of moles (n) of each substance will not vary, and it's calculated by the multiplication of the concentration (C) by the volume (V). If 1 is the initial solution, and 2 the diluted:
n1 = n2
C1*V1 = C2*V2
For NaOH:
C1 = 0.150 M
V1 = 30.0 mL
V2 = 100 mL
0.150*30 = C2*100
100C2 = 4.5
C2 = 0.045 M
For the red dye:
C1 = 0.125 M
V1 = 25.0 mL
V2 = 100 mL
0.125*25 = C2*100
100C2 = 3.125
C2 = 0.031 M
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