With a 27.7 mL sample of a 0.400 M aqueous hypochlorous acid solution titrated with a 0.335 M aqueous potassium hydroxide solution, the pH value is mathematically given as
pH=12.90
<h3>What is the
pH at the
midpoint in the titration?</h3>
Moles of HClO=0.329*21.5
Moles of HClO=7.0735
and
Moles of KOH=0.456*23.3
Moles of KOH=10.6248
Hence
The net mole of KOH=10.6248-7.0735
The net mole of KOH=3.5513
Volume of solution=21.5+23.3
Volume of solution=44.8ml
Generally, the equation for the Concentration of KOH is mathematically given as
CKOH=mole/volume
Therefore
CKOH=3.5513/44.8ml
CKOH=0.07927M
In conclusion,
pOH=-log{OH-}
pOH=-log{0.07927}
pOH=1.10
pH=14-110
pH=12.90
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An A horizon is a mineral horizon, It forms at the surface as topsoil. O horizon turns eventually into topsoil
Answer:
55 g
Explanation:
First, we have to look for the solubility of KNO₃ at 60°C, considering that the solubility is the maximum amount of solute that can be dissolved in 100 grams of solvent, that is, the concentration of a saturated solution.
The solubility of KNO₃ at 60°C is 110.0 g of KNO₃ per 100 g of water. The mass of KNO₃ that must be dissolved in 50 g of water to make a saturated solution is:
50 g H₂O × (110.0 g KNO₃/100 g H₂O) = 55 g KNO₃
Igneous <span>rock ! Of course oh how i miss middle school.........</span>
Redox reaction has a great economic impact. many product that we use in our daily lives are made using redox reaction. some of which are electroplating, that we use in our watches. and redox reaction also caused the rusting of irons, so buildings will rust and become brittle
