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
Oksi-84 [34.3K]
3 years ago
10

Why NH4 is not a molecular ion

Chemistry
1 answer:
cestrela7 [59]3 years ago
6 0

Answer:

Is

Explanation:

Ammonium (NH4+) is a poly-atomic ion. ... NH4+ is not the formula of a neutral molecule, neutral ammonia is NH3. to make the ammonium ion, you add a proton (H+). Thus, Ammonium is NOT a molecular ion. You can create a molecular ion like NH3- by electron bombardment to give it a negative charge.

Hope this helps......

You might be interested in
Help please :&lt;<br> I just need the answer for this as quickly as possible.
11Alexandr11 [23.1K]

Answer:

I think its the 3th one

Explanation:

8 0
3 years ago
Read 2 more answers
Given K = 3.61 at 45°C for the reaction A(g) + B(g) equilibrium reaction arrow C(g) and K = 7.19 at 45°C for the reaction 2 A(g)
Firlakuza [10]

Answer:

K = 0.55

Kp = 0.55

mol fraction B = 0.27

Explanation:

We need to calculate the equilibrium constant for the reaction:

C(g) + D(g) ⇄ 2B(g)              K₁= ?                       (1)

and we are given the following equilibria with their respective Ks

A(g) + B(g) ⇄ C(g)                 K₂= 3.61                 (2)

2 A(g) + D(g)  ⇄ C(g)             K₃= 7.19                 (3)

all at 45 ºC.

What we need to do to solve this question is to manipulate equations (2) and (3)  algebraically  to get our desired equilibrium (1).

We are allowed to reverse  reactions, in that case we take the reciprocal of K as our new K' ; we can also  add two equilibria together, and the new equilibrium constant will be the product of their respective Ks .

Finally if we multiply by a number then we raise the old constant to that factor to get the new equilibrium constant.

With all this  in mind, lets try to solve our question.

Notice A is not in our goal equilibrium (3)  and we want D as a reactant . That  suggests we should reverse the first equilibria and multiply it by two since we have 2 moles of B  as product in our  equilibrium (1) . Finally we would add (2) and (3) to get  (1) which is our final  goal.

2C(g)             ⇄  2A(g) + 2B(g)  K₂´= ( 1/ 3.61 )²  

                                   ₊

2 A(g) + D(g)  ⇄     C(g)               K₃ = 7.19  

<u>                                                                                    </u>

C(g) + D(g)     ⇄    2B(g)       K₁ = ( 1/ 3.61 )²   x  7.19

                                             K₁ = 0.55

Kp is the same as K = 0.55 since the equilibrium constant expression only involves  gases.

To compute the last part lets setup the following mnemonic  ICE table to determine the quantities at equilibrium:

pressure (atm)        C             D           B

initial                     1.64          1.64         0

change                    -x             -x        +2x

equilibrium          1.64-x         1.64-       2x

Thus since

Kp =0.55 = pB²/ (pC x pD) = (2x)²/ (1.64 -x)²  where p= partial pressure

Taking square root to both sides of the equation we have

√0.55 = 2x/(1.64 - x)

solving for x  we obtain a value of 0.44 atm.

Thus at equilibrium we have:

(1.64 - 0.44) atm = 1.20 atm = pC = p D

2(0.44) = 0.88 = pB

mole fraction of B = partial pressure of B divided into the total gas pressure:

X(B) = 0.88 / ( 1.20 + 1.20 + 0.88 ) = 0.27

8 0
3 years ago
OIE GENTE LINDA <br>TUDO BEM COM VCS??​
Pavel [41]

Answer:

Que?

Explanation:

5 0
3 years ago
Read 2 more answers
Our recorded observations are called.
trapecia [35]

Answer:  Raw data, perhaps.

Explanation:  I'm not certain what the question is seeking for an answer, but I would suggest "raw data" would be a reasonable choice.  It reflects the data was recorded, but not yet processed to provide a conclusion or observation.

If one were a bit snarky, other possiblities include

  • a pile of dung
  • my labmate's scrawls, or
  • the best web results I could find

5 0
2 years ago
Does a hypothesis have to be true for a experiment to be valid?
Sav [38]

Answer:

no

Explanation:

because hypothesis are just what we thing is gonna happen it doesn't have to be true

sorry if im wrong

3 0
3 years ago
Other questions:
  • What is the volume of 1.9 moles of chlorine gas (Cl2) at standard temperature and pressure (STP)?
    9·2 answers
  • Consider the following reaction: 2 H2(g) + 2 NO(g) → 2 H2O(g) + N2(g) If the concentration of NO changed from 0.100 M to 0.025 M
    14·1 answer
  • Under the same conditions of solar radiation, compared with oceans the land will warm_________
    12·1 answer
  • Which of the following is a property of carbon atoms?
    5·2 answers
  • Bella observes that the gas-filled tire of her bicycle becomes a little deflated when she keeps the bicycle outside in cold weat
    8·1 answer
  • The atomic number is determined only by the number of ________ in the nucleus of an atom. But, in a neutral atom it also represe
    6·1 answer
  • A scientist made careful measurements of the pressure and temperature of many different gases. Based on these measurements, he c
    7·1 answer
  • Give an example of a time when you would want to increase friction.
    13·1 answer
  • A student constructs a coffee cup calorimeter and places 50.0 mL of water into it. After a brief period of stabilization, the te
    6·1 answer
  • Which statement is correct about the rate of a chemical reaction? (5 points)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!