The acid having the yellow anion is a weak acid.
The weak acid is the acid that does not dissociate completely in solution. Strong acids are known to dissociate completely in solution. Hence, their cations and anions do not occur together in solution.
Weak acids acids do not dissociate in solution hence, we can still spot the cations connected to their anions in solution. Hence, the acid having the yellow anion is a weak acid.
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SI unit of frequency is Hertz(Hz)
19. The atomic number is the same as protons and electrons unless it have a - or a + charge the electrons are going to change
I believe so, looks like it
Answer:
![M_{base}=0.709M](https://tex.z-dn.net/?f=M_%7Bbase%7D%3D0.709M)
Explanation:
Hello,
In this case, since the reaction between potassium hydroxide and nitric acid is:
![KOH+HNO_3\rightarrow KNO_3+H_2O](https://tex.z-dn.net/?f=KOH%2BHNO_3%5Crightarrow%20KNO_3%2BH_2O)
We can see a 1:1 mole ratio between the acid and base, therefore, for the titration analysis, we find the following equality at the equivalence point:
![n_{acid}=n_{base}](https://tex.z-dn.net/?f=n_%7Bacid%7D%3Dn_%7Bbase%7D)
That in terms of molarities and volumes is:
![M_{acid}V_{acid}=M_{base}V_{base}](https://tex.z-dn.net/?f=M_%7Bacid%7DV_%7Bacid%7D%3DM_%7Bbase%7DV_%7Bbase%7D)
Thus, solving the molarity of the base (KOH), we obtain:
![M_{base}=\frac{M_{acid}V_{acid}}{V_{base}} =\frac{0.498M*42.7mL}{30.0mL}\\ \\M_{base}=0.709M](https://tex.z-dn.net/?f=M_%7Bbase%7D%3D%5Cfrac%7BM_%7Bacid%7DV_%7Bacid%7D%7D%7BV_%7Bbase%7D%7D%20%3D%5Cfrac%7B0.498M%2A42.7mL%7D%7B30.0mL%7D%5C%5C%20%5C%5CM_%7Bbase%7D%3D0.709M)
Regards.