Hello!
The chemical reaction for the dissociation of Formic Acid is the following:
HCOOH + H₂O ⇄ HCOO⁻ + H₃O⁺
From this reaction we can use the Henderson-Hasselbach equation to find the pH, but first we need to find the value for the pKa:
pKa=-log(Ka)=3,75
pH=pKa + log([HCOO⁻]/[HCOOH])
pH=3,75 + log (0,295/0,205)
pH= 3,90
Have a nice day!
Answer:
the molecular geometry of BCl3 is trigonal planar.
Explanation:
The precaution to be taken while measuring the temperature of a liquid in a beaker is applying proper heat balance and taking all the required precautions.
- A beaker with an open top contains a sample of liquid. It exposes this sample to light.
- That liquid absorbs the light energy, turning it into heat energy. As a result, the liquid becomes warmer and evaporation is accelerated. As a result, there is less liquid in the beaker.
- Since it is well known that the surface temperature of a liquid, along with air movement above the liquid surface, is one of the dominant factors affecting evaporation, I want to measure the evaporation rate as a function of surface temperature.
- This can be done by applying a heat balance.
Learn more about heat balance at:
brainly.com/question/1292905
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Answer is: 4)Mass
I really hope this helped you out!!!!
Answer:
C is the answer to the question
