1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nata0808 [166]
3 years ago
12

11th grade chemistry question will mark brainliest

Chemistry
1 answer:
GaryK [48]3 years ago
5 0

Answer:

3.88 atm

Explanation:

We'll begin by calculating the number of mole of CO₂ in each case. This can be obtained as follow:

For 2.50 g of CO₂:

Mass of CO₂ = 2.5 g

Molar mass of CO₂ = 12 + (2×16) = 44 g/mol

Mole of CO₂ =?

Mole = mass / molar mass

Mole of CO₂ = 2.5 / 44

Mole of CO₂ = 0.06 mole

For 0.42 g of CO₂:

Mass of CO₂ = 2.5 g

Molar mass of CO₂ = 44 g/mol

Mole of CO₂ =?

Mole = mass / molar mass

Mole of CO₂ = 0.42 / 44

Mole of CO₂ = 0.010 mole

Finally, we shall determine the new pressure. This can be obtained as follow:

Initial mole (n₁) = 0.06 mole

Initial pressure (P₁) = 4.65 atm

Final mole (n₂) = 0.06 – 0.010 = 0.05 mole

Final pressure (P₂) =?

NOTE: Temperature and volume is constant.

P₁ / n₁ = P₂ / n₂

4.65 / 0.06 = P₂ / 0.05

Cross multiply

0.06 × P₂ = 4.65 × 0.05

0.06 × P₂ = 0.2325

Divide both side by 0.06

P₂ = 0.2325 / 0.06

P₂ = 3.88 atm

Thus, the new pressure is 3.88 atm.

You might be interested in
It has been established that 8.0x10^4 tons of gold (Au) have been mined. Assume gold cost $350 per ounce. Whats the total worth
bazaltina [42]
So first lets find out how much gold there is. 10^4=10,000so that means 8.0x10,000= 8,000. now we have to find out how much money that is. All we have to do is multiply 8,000 by 350. When multiplied you get $2,800,000
7 0
3 years ago
Use the expression we obtained in class to write the molar absorption coefficient of a particular transition in terms of the tra
Anna007 [38]

Answer:

Initially the function is symmetric with respect to the axis of the one dimensional box. In the final state it is also symmetrical, however you can envision a snapshot of the system as the light field is interacting with the wave-function wherein a node begins to develop as is shown in the middle and the wave function is evolving from the initial to final state. Now consider that the electron density during process is the square of the wave function:

Electron density during transition

As can be seen in the initial and final states the electron density is symmetrically distributed with respect to the axis of the box. However with the field on, the electron density is not symmetrically distributed and a transitory dipole moment can be present. To relate back to real molecules think of each of those orbitals as a linear combination of atomic orbitals. One important factor is the symmetry. But there may be one other factor that will be just as important as symmetry. If you treat orbital 1 as a linear combination over n orbitals and orbital 2 as a linear combinations of orbitals as well, there will be a spatial over lap between the orbital in the ground state and the orbital in the excited state. If there is no spatial overlap between the ground state and excited state orbitals there will be no transition dipole moment. However, if the electrons are in the same place spatially, a large transition dipole moment will result.

Explanation:

4 0
2 years ago
What do you think would happen if you placed a drop of iodine on your baked potato at dinner?
DiKsa [7]

Answer:there is visible blue black coloration

Explanation:starch is a polysaccharide,it is composed of only glucose combined by glycosidic bonds.starch is majorly an insoluble carbonhydrate.

Starch consist of two distinguishable polysaccharide fraction namely amylose and amylopectin.

The iodine test is used to check for the presence of starch.

It gives a blue black coloration for amylose which is present in potato.

But in amylopectin,it gives a reddish coloration.

8 0
3 years ago
Predict which atom has the higher ionization energy. Mg Na
inysia [295]
The correct answer would be Mg
3 0
3 years ago
One process used to manufacture sulfuric acid is called the contact process...determine the amount of energy released when 1.00
Pepsi [2]
From the reaction; 

2SO2(g) + O2(g) = 2SO3(g)  + 394 kJ
   In the reaction a mixture of plantinum and vanadium (V) oxide may be used as a catalyst for the reaction. The sulfur trioxide produced is then used to make sulfuric acid.
 The energy that is required to release 1 mole of sulfur trioxide is +394 joules 
For one mole of sulfur trioxide; 
the energy that will be released will be 394/2 = 197 kJ
Thus; the amount of energy released is +197 kJ
5 0
3 years ago
Other questions:
  • What happens to energy from the sun that is neither reflected nor absorbed by the atmosphere
    15·1 answer
  • What is the concentration in molarity of a solution that has 54.21g of calcium hydroxide dissolved in 560mL of water?
    12·1 answer
  • In order to complete a lab, your teacher needs a 3.0 M solution of sulfuric acid, but only has a 12.0 M stock solution of sulfur
    14·1 answer
  • What is the change in internal energy for each of the following situations? 1. q-7.9 J out of the system and w 3.6 J done on the
    5·1 answer
  • Given the reaction below: N2O4 (g) ⇌ 2 NO2 (g)
    15·1 answer
  • ) Any gas exerts a pressure against its surroundings. For example, if you put more gas in a balloon, it exerts more pressure and
    10·1 answer
  • How are estuaries connected to oceanic organisms?
    7·1 answer
  • A gas has a pressure of 450 mmHg at 100 degrees Celsius. What will its new pressure be when the temperature rises 200 degrees Ce
    14·1 answer
  • How could a solid dissolve in a water solution if a base was added such<br> as NaOH
    8·1 answer
  • Is it possible to prove that something is real or true of you can’t directly observe it? If no, why not? If yes, how would you d
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!