Which of the following is NOT true about wastewater and wastewater treatment?

the concentration of solutes is the same both inside and outside of the cell the concentration of solutes is less outside the ce

Volgvan

Answer: The concentration of solutes is the same both inside and outside of the cell : isotonic

The concentration of solutes is less outside the cell than inside the cell : hypotonic

the concentration of solutes is greater outside the cell than inside it: hypertonic

the diffusion of water across a selectively permeable membrane: osmosis

the movement of molecules from a region of high concentration to a region of low concentration by means of random molecular motion : diffusion

a membrane that allows only specific molecules to move into or out of the cell : selectively permeable

Explanation:

The solutions having same osmotic pressure and hence same molar concentration are termed as isotonic.

If a solution is of lower osmotic pressure it is called as hypotonic with respect to the concentrate solution.

The more concentrated solution is said to be hypertonic with respect to the dilute solution.

Osmosis is defined as the process in which molecules of a solvent tend to move through a semipermeable membrane from a region of low concentration solution to a region of more concentrated solution.

Diffusion can be defined as a phenomenon that occurs in liquid or gases which is the process of movement of solute particles from area of high concentration to low concentration.

Selectively permeable membrane is a membrane which allows selective movement of molecules.

6 0

4 years ago

What is the molarity of a solution that has 2.50 moles of NaOH dissolved in 0.500 L of solution?

const2013 [10]

Answer: 5 is the molarity

Explanation:

The molarity formula is moles over liters and that in your case is 2.50 moles divided by .500 L which results in 5 which is your answear hope this helped god bless

5 0

3 years ago

Read 2 more answers

How many atoms are ina particle?

oksian1 [2.3K]

Three
A typical atom consists of three subatomic particles: protons, neutrons, and electrons (as seen in the helium atom below). Other particles exist as well, such as alpha and beta particles (which are discussed below). The Bohr model shows the three basic subatomic particles in a simple manner.

6 0

4 years ago

Name the layers of earth in order from most dense to least dense.

Oksi-84 [34.3K]

1. inner core
2. outer core
3. mantle
4.crust

3 0

3 years ago

The equilibrium constant is equal to 5.00 at 1300 K for the reaction:2 SO2(g) + O2(g) ⇌ 2 SO3(g). If initial concentrations are

oee [108]

This is an incomplete question, here is a complete question.

The equilibrium constant is equal to 5.00 at 1300 K for the reaction:

$2SO_2(g)+O_2(g)\rightarrow 2SO_3(g)$

If initial concentrations are [SO₂] = 1.20 M, [O₂] = 0.45 M, and [SO₃] = 1.80 M, the system is

A) at equilibrium.

B) not at equilibrium and will remain in an unequilibrated state.

C) not at equilibrium and will shift to the left to achieve an equilibrium state.

D) not at equilibrium and will shift to the right to achieve an equilibrium state.

Answer : The correct option is, (A) at equilibrium.

Explanation :

Reaction quotient (Q) : It is defined as the measurement of the relative amounts of products and reactants present during a reaction at a particular time.

The given balanced chemical reaction is,

$2SO_2(g)+O_2(g)\rightarrow 2SO_3(g)$

The expression for reaction quotient will be :

$Q=\frac{[SO_3]^2}{[SO_2]^2[O_2]}$

In this expression, only gaseous or aqueous states are includes and pure liquid or solid states are omitted.

Now put all the given values in this expression, we get

$Q=\frac{(1.80)^2}{(1.20)^2\times (0.45)}=5.0$

The given equilibrium constant value is, $K_c=5.00$

Equilibrium constant : It is defined as the equilibrium constant. It is defined as the ratio of concentration of products to the concentration of reactants.

There are 3 conditions:

When $Q>K_c$ that means product > reactant. So, the reaction is reactant favored.

When $Q$ that means reactant > product. So, the reaction is product favored.

When $Q=K_c$ that means product = reactant. So, the reaction is in equilibrium.

From the above we conclude that, the $Q=K_c$ that means product = reactant. So, the reaction is in equilibrium.

Hence, the correct option is, (A) at equilibrium.

7 0

3 years ago