What is 125000 in scientific notation?

I 13 Suggest why this group is called Group 8.

yarga [219]

Answer:

because it's in group 8

Explanation:

3 0

3 years ago

Can you help please??

hram777 [196]

Answer:

no

Explanation:

7 0

2 years ago

Read 2 more answers

At equilibrium, the concentrations in this system were found to be [N21 O20.200 M and [NO]0.500 M. N2(8) 02e) 2NO(g) If more NO

erastovalidia [21]

Answer : The concentration of $NO$ at equilibrium is 0.9332 M

Solution : Given,

Concentration of $N_2$ and $O_2$ at equilibrium = 0.200 M

Concentration of $N_2$ and $O_2$ at equilibrium = 0.500 M

First we have to calculate the value of equilibrium constant.

The given equilibrium reaction is,

$N_2(g)+O_2(g)\rightleftharpoons 2NO(g)$

The expression of $K_c$ will be,

$K_c=\frac{[NO]^2}{[N_2][O_2]}$

$K_c=\frac{(0.500)^2}{(0.200)\times (0.200)}$

$K_c=6.25$

Now we have to calculate the final concentration of NO.

The given equilibrium reaction is,

$N_2(g)+O_2(g)\rightleftharpoons 2NO(g)$

Initially 0.200 0.200 0

.800

At equilibrium (0.200-x) (0.200-x) (0.800+2x)

The expression of $K_c$ will be,

$K_c=\frac{[NO]^2}{[N_2][O_2]}$

$K_c=\frac{(0.800+2x)^2}{(0.200-x)\times (0.200-x)}$

By solving the term x, we get

$x=2.6\text{ and }-0.0666$

From the values of 'x' we conclude that, x = 2.6 can not more than initial concentration. So, the value of 'x' which is equal to 2.6 is not consider.

And the negative value of 'x' shows that the equilibrium shifts towards the left side (reactants side).

Thus, the concentration of $NO$ at equilibrium = (0.800+2x) = 0.800 + 2(0.0666) = 0.9332 M

Therefore, the concentration of $NO$ at equilibrium is 0.9332 M

5 0

3 years ago

Your neighbor has a beautiful garden that produces many different flowers all summer. How do you think he manages to have flower

storchak [24]

He uses the sunlight and and he uses water

7 0

3 years ago

Each of the following solutions is separated from a solution containing pure water with a semipermeable membrane. Assuming they

liberstina [14]

Answer:

Osmotic pressure is a measure of a solution's tendency to attract or take in water from another solution when the two solutions are separated by a semipermeable membrane

The order of increasing osmotic pressure is

0.7% KCl
1.5% KCl
1.8% KCl
5.0% KCl
8.6% KCl

Explanation:

Osmotic pressure is the strength of movement of the solvent of a solution through a semipermeable membrane separating solutions of different concentration thereby causing the solvent (such as water) to move from a region of high solute concentration to a region of lower solute concentration.

The amount of osmotic pressure through a semipermeable membrane separating solutions of different concentration is given by

π = i×M×R×T

π = osmotic pressure

i = van't Hoff's factor

(M) = molar concentration

(T) = temperature in kelvin

R = ideal gas constant (0.08206 L atm mol⁻¹K⁻¹)

As seen above , the osmotic pressure is directly proportional to the concentration of the solution thus in the order of increasing osmotic pressure we have

0.7% KCl
1.5% KCl
1.8% KCl
5.0% KCl
8.6% KCl

3 0

3 years ago