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
AnnyKZ [126]
3 years ago
7

What volume will 1.12 moles of nitrogen gas occupy at STP

Chemistry
1 answer:
krok68 [10]3 years ago
8 0

Answer:

Explanation:

Volume occupied by Nitrogen gas at STP = number of moles x 22.4dm³/mol

Number of moles = 1.12moles

Volume = 1.12 x 22.4

Volume at STP = 25.1dm³

You might be interested in
DONT COMMENT ANY LINKS OR DONT COMMENT IF YOU DONT KNOW THE ANSWER.
Vsevolod [243]

Answer:

the first one is protons and electrons the second one is protons the third one is neutrons and the forth one is also neutron

3 0
2 years ago
Read 2 more answers
An aqueous solution that has a hydrogen ion concentration of 1.0 x 10^-8 mole per liter has a pH of
spin [16.1K]

Answer: 8, which is basic

Explanation: The hydrogen ion concentration is 1.0 x 10^-8 mole per liter. Using [H+] = 1.0 x 10 -(pH) the pH is 8. A pH above 7 is basic.

7 0
2 years ago
What trend does the first ionization energy follow, going down the periodic
-Dominant- [34]

Answer:

C. The first ionization energy decreases because the outermost

electron is farther from the nucleus.

Explanation:

Ionization energy trend along group:

As we move down the group atomic radii increased with increase of atomic number. The addition of electron in next level cause the atomic radii to increased. The hold of nucleus on valance shell become weaker because of shielding of electrons thus size of atom increased.

As the size of atom increases the ionization energy from top to bottom also  decreases because it becomes easier to remove the electron because of less nuclear attraction and as more electrons are added the outer electrons becomes more shielded and away from nucleus.

Ionization energy trend along period:

As we move from left to right across the periodic table the number of valance electrons in an atom increase. The atomic size tend to decrease in same period of periodic table because the electrons are added with in the same shell. When the electron are added, at the same time protons are also added in the nucleus. The positive charge is going to increase and this charge is greater in effect than the charge of electrons. This effect lead to the greater nuclear attraction. The electrons are pull towards the nucleus and valance shell get closer to the nucleus. As a result of this greater nuclear attraction atomic radius decreases and ionization energy increases because it is very difficult to remove the electron from atom and more energy is required.

6 0
3 years ago
Read 2 more answers
Describe what happens when a bond is created between magnesium and bromine. Be specific and explain in terms of electrons.
Allushta [10]

Answer: Magnesium and Bromine/MgBr2 = Ionic compounds

Explanation: When atoms form together they can form between Ionic Compounds and molecules; this could depend on if they're joined by Covalent bonds as well because when atoms form with Covalent bonds, it forms Molecules.

5 0
2 years ago
At an elevated temperature, Kp=4.2 x 10^-9 for the reaction 2HBr (g)---> +H2(g) + Br2 (g). If the initial partial pressures o
Damm [24]

Answer : The partial pressure of H_2 at equilibrium is, 1.0 × 10⁻⁶

Explanation :

The partial pressure of HBr = 1.0\times 10^{-2}atm

The partial pressure of H_2 = 2.0\times 10^{-4}atm

The partial pressure of Br_2 = 2.0\times 10^{-4}atm

K_p=4.2\times 10^{-9}

The balanced equilibrium reaction is,

                                2HBr(g)\rightleftharpoons H_2(g)+Br_2(g)

Initial pressure    1.0×10⁻²       2.0×10⁻⁴      2.0×10⁻⁴

At eqm.            (1.0×10⁻²-2p)   (2.0×10⁻⁴+p)  (2.0×10⁻⁴+p)

The expression of equilibrium constant K_p for the reaction will be:

K_p=\frac{(p_{H_2})(p_{Br_2})}{(p_{HBr})^2}

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

4.2\times 10^{-9}=\frac{(2.0\times 10^{-4}+p)(2.0\times 10^{-4}+p)}{(1.0\times 10^{-2}-2p)^2}

p=-1.99\times 10^{-4}

The partial pressure of H_2 at equilibrium = (2.0×10⁻⁴+(-1.99×10⁻⁴) )= 1.0 × 10⁻⁶

Therefore, the partial pressure of H_2 at equilibrium is, 1.0 × 10⁻⁶

4 0
3 years ago
Other questions:
  • Which law states that the pressure and absolute temperature of a fixed quantity of gas ate directly proportional under constant
    10·1 answer
  • This question has multiple parts. work all the parts to get the most points. one method for preparing a nitrile is the dehydrati
    9·1 answer
  • If someone who is good at this can help me
    5·1 answer
  • An element has an atomic number of 22 what is the total number of valance electrons?
    6·1 answer
  • What is the golden rule of lighting safety?
    10·1 answer
  • Covalent Compounds HAVE a positive (+) or negative (-) charge <br> True or false
    6·1 answer
  • Hi, in some texts number of water molecules released during polymerization is 2n but in others 2n-1 , why?
    12·1 answer
  • What happens if 2 hydrogen and 1 oxygen atoms are combined?
    8·2 answers
  • Please help! Picture is provided.
    7·2 answers
  • Lead (II) acetate reacts with sodium hydroxide to produce lead (II) hydroxide and sodiumacetate. Please write the chemical equat
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!