Answer:
We need the picture to answer the question
Explanation:
but i did do this test and number 4 was biotic and number 5 was abotic hope this helped
Can u send a picture so I know wat ur talking about
The osmotic pressure of the solution is 25.48atm
Data;
- Mass = 69.5g
- Molar mass = 162.20g/mol
- Volume = 2.35L
- Temperature = 35.0^oC
<h3>Osmotic Pressure</h3>
The osmotic pressure of the solution is calculated as
- i = Vant Hoff Factor
- M = molarity
- R = gas constant
- T = Temperature
The Vant hoff factor of the factor = 4
Let's calculate the molarity of the solution;
Number of moles = mass / molar mass
substitute the values into the formula and solve for it
The molarity of the solution is calculated as
The osmotic pressure of the solution is calculated as
The osmotic pressure of the solution is 25.48atm
Learn more on osmotic pressure here;
brainly.com/question/8195553
Explanation:
The pKa value of acetic acid is determined experimentally by plotting pH titration curve.
The hydrogen ion, H+ concentration can be determined by performing a pH titration of a weak acid with a strong base like NaOH etc.
Starting from the dissociation equation for the acid,
HA(aq) + OH-(aq) --> H3O+(aq) + A−(aq)
we obtain for the point of half equivalence (where half of the acid has reacted with the base):
[A−] = [HA].
From the equilibrium equation
it therefore follows that
pKa = pH.
The plum pudding model of the
atom by the scientist Sir Joseph John Thompson or J.J. Thompson. It was
theorized after the discovery that electrons are present in the atom. In this
model, the atom is composed mainly of electrons. It was describe as plum
pudding because the electrons are dispersed within the atom. John Dalton
discovered the atom. Ernest Rutherford discovered the half – life of an atom
and Neils Bohr explain the quantum mechanics. So the answer is J.J. Thompson.
