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Dafna11 [192]
2 years ago
5

Divide 26300 by 0.00900 and enter the answer using the proper scientific "E" notation so that the result is within 1% of the exa

ct calculation.
Chemistry
1 answer:
tia_tia [17]2 years ago
3 0

On dividing 26300 by 0.00900, the result expressed in proper scientific notation is 2.92222222222 × 10^6

The divisor is 26300 and the dividend is 0.00900. Dividing the number, we get

26300/0/0900=2922222.22222

The scientific notation is of the form x×10^y. Expressing in scientific notation, we get

2.92222222222 × 10^6

  • Scientific notation is a way of expressing numbers that are too large or too small to be conveniently written in decimal form.
  • It may be referred to as x×10^y
  • It is a special way of writing numbers.
  • Scientific notation is a form of presenting very large numbers or very small numbers in a simpler form.

To learn more about scientific notation visit:

brainly.com/question/18073768

#SPJ9

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Go'=30.5 kJ/mol
makvit [3.9K]

Answer:

a) Keq = 4.5x10^-6

b) [oxaloacetate] = 9x10^-9 M

c) 23 oxaloacetate molecules

Explanation:

a) In the standard state we have to:

ΔGo = -R*T*ln(Keq) (eq.1)

ΔGo = 30.5 kJ/moles = 30500 J/moles

R = 8.314 J*K^-1*moles^-1

Clearing Keq:

Keq = e^(ΔGo/-R*T) = e^(30500/(-8.314*298)) = 4.5x10^-6

b) Keq = ([oxaloacetate]*[NADH])/([L-malate]*[NAD+])

4.5x10^-6 = ([oxaloacetate]/(0.20*10)

Clearing [oxaloacetate]:

[oxaloacetate] = 9x10^-9 M

c) the radius of the mitochondria is equal to:

r = 10^-5 dm

The volume of the mitochondria is:

V = (4/3)*pi*r^3 = (4/3)*pi*(10^-15)^3 = 4.18x10^-42 L

1 L of mitochondria contains 9x10^-9 M of oxaloacetate

Thus, 4.18x10^-42 L of mitochondria contains:

molecules of oxaloacetate = 4.18x10^-42 * 9x10^-9 * 6.023x10^23 = 2.27x10^-26 = 23 oxaloacetate molecules

3 0
4 years ago
Ammonia is produced commercially by the Haber reaction: N2(8)+ 3H2(8)
Shalnov [3]

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

Ammonia is produced commercially by the Haber  reaction:

N_2(g)+3H_2(g)\rightarrow 2NH_3(g)+Heat

The formation of ammonia is favored by

A) an increase in pressure

B) a decrease in pressure

C) removal of N₂(g)

D) removal of H₂(g)

Answer : The correct option is, (A) an increase in pressure.

Explanation :

Any change in the equilibrium is studied on the basis of Le-Chatelier's principle.

Le-Chatelier's principle states that if there is any change in the variables of the reaction, the equilibrium will shift in the direction to minimize the effect.

Increase the pressure :

If the pressure in the equilibrium is increased, the equilibrium will shift in the direction where fewer total molecules are shown in the balanced chemical equation.

In the given reaction, there are 4 molecules present on reactant side and 2 molecules on product side. That means, less molecules present on product side. Thus, the reaction will shift in right direction that is towards the product.

Removal the reactant molecule :

If any of reactant molecule in the equilibrium is removed, then the equilibrium will shift in left direction that is towards the reactant.

Hnece, the formation of ammonia is favored by  an increase in pressure.

5 0
4 years ago
An element gain two electrons and has 16 protons and 17 neutrons. What is the atomic mass of this element and what is the charge
Taya2010 [7]

Answer:

atomic mass= 33

Charge= -2

Explanation:

In an atom, are contained three SUBATOMIC particles viz: proton and neutron found in the nucleus, electrons surrounding the nucleus. Protons contain the positive charge of an atom while electrons contain the negative charge of an atom. The number of protons and electrons in an atom determines the charge of an ion (charged atom). Also, the atomic mass or mass number of that atom is got by adding the number of protons + number of neutrons.

In this case where the number of protons and number of neutrons are 16 and 17 respectively, the mass no. or atomic mass is 17 + 16 = 33.

Also, since two electrons are gained by this atom, it means the electron numbe, which is normally equal to the proton number in a neutral atom, will be increased by 2. Hence, the electron number will be 18 in this case.

The charge of the atom= no. of protons - no. of electrons = 16 - 18 = -2.

6 0
4 years ago
When hydrogen peroxide (H2O2) is added to potassium iodide (KI) solution, the hydrogen peroxide decomposes into water (H2O) and
denis-greek [22]
The answer is D. A catalyst.
6 0
4 years ago
Read 2 more answers
Question (a).....................
Rudiy27
I dont get the question ???
6 0
3 years ago
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