The fumes of acetic acid go to the floor instead of ceiling.
The reason behind the answer is that the density of acetic acid fumes is higher than the density of air (almost twice) that is equal to only 1 .
Thus, the fumes of acetic acid go to the floor.
There are 4 atoms in sodium hydrate
The amount of matter in an object is said to be its mass. The SI base unit of mass is kilograms i.e. .
The mass of the object = (given)
For converting lbs to kg:
So,
Hence, the mass of object in kilograms is .
<span>Science involves Observation. With out observation then you do not have science. So, if you were studying plants for instance, you would be looking at the plants and drawing conclusions based upon your observations and experiments (and the observation of the experiments). Something that is not scientific is the theories of how this world came about. Neither the evolutionist view or the Creationist view is scientific, no one can observe what happened thousands of years ago. The theories of how this world came about are merely faith based. Atheist put their faith in billions of years and Christians to a higher power. So that would be an example of something that is not scientific.</span>
Answer:
a) pH will be 12.398
b) pH will be 4.82.
Explanation:
a) The moles of NaOH added = molarity X volume (L) = 2 X 0.01 = 0.02 moles
The total volume after addition of pure water = 0.780+0.01 = 0.79 L
The new concentration of /NaOH will be:
the [OH⁻] = 0.025
pOH = -log [OH⁻] = 1.602
pH = 14 -pOH = 12.398
b) The buffer has butanoic acid and butanoate ion.
i) Before addition of NaOH the pH will be calculated using Henderson Hassalbalch's equation:
pKa=
ii) on addition of base the pH will increase.