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statuscvo [17]
3 years ago
8

What is the effect of increasing pressure on the equilibrium? N2 + 3H2 ⇔ 2NH3 a) Equilibrium shifts in forward direction. b) Equ

ilibrium shifts in backward direction. c) No effect d) It does not depends on pressure.
Chemistry
2 answers:
koban [17]3 years ago
4 0

Answer:

a) Equilibrium shifts in forward direction.

Explanation:

If pressure is increased, equilibrium shifts to the side with the fewer moles of gas.

There are 4 moles of gas in the reactants and 2 moles of gas in the products.

The equilibrium will shift in the forward direction towards the products.

Hope that helps.

abruzzese [7]3 years ago
3 0

Answer:

A

Explanation:

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Some atoms are exceptions to the octet rule by having an expanded octet. Which characteristic is needed for an atom to have an e
Len [333]

Answer: The correct option would be A.

Explanation: The main group elements which make more bonds than that was predicted from the octet rule are supposed to have expanded octet.

These elements tend to have more than 8 valence electrons after bonding and this can be achieved when we have empty d-orbitals.

When we have empty p-orbitals, total number of valence electrons than can be occupied will be 8.

Electronic configuration when valence shell's empty p-orbitals are fully filled = ns^2np^6

which means that a total of 8 electrons can be occupied which does not satisfy expanded octet rule.

Example of molecule showing expanded octet rule is given in the image. Here, after bonding Phosphorous has 10 electrons which is occupied in empty d-orbitals.

7 0
3 years ago
Read 2 more answers
If a weak acid is 25 deprotonated at ph 4 what would the pka be
elena-s [515]

4.48

pH=pKa+log([A-/HA])

25% deprotonated tells us that A- is .25 and that the rest (75% is protonated) thats .75.

4 = pKa + log \frac{.25}{.75}

4 - log \frac{.25}{.75}  = pKa

4.48=pKa

6 0
3 years ago
The atomic mass and abundance of Cr-50 is 49.946 amu and 4.3%. The atomic mass and abundance of Cr-52 is 51.941 amu and 83.8%. T
Leviafan [203]

Answer:

52.00 AMU

Explanation:

(49.946 * 0.043) + (51.941 * 0.838) + (52.941 * 0.095) + (53.939 * 0.024) = 51.998

Make sure to round, 52.00 AMU.

3 0
2 years ago
Name the mineral group for each of the following minerals: Group of answer choices Kyanite (Al2SiO5) Ilmenite (FeTiO3) Rhodochro
Ainat [17]

Answer:

Kyanite (Al2SiO5) - silicate

Ilmenite (FeTiO3) - Oxides

Rhodochrosite (MnCO3) - carbonate

Celestite (SrSO4) - sulphate

Chalcocite (Cu2S) -  sulphide

Explanation:

Minerals are classified according to their chemical composition. For example those that hve the CO32- ion are called carbonates and those with the SO42- ion are called sulphates while the ones with S2- ion are called sulphides

3 0
3 years ago
Predict the density of acetylene gas (C2H2) at 0.910 atm and 20oC.
zhuklara [117]

Answer:

d = 0.98 g/L

Explanation:

Given data:

Density of acetylene = ?

Pressure = 0.910 atm

Temperature = 20°C (20+273 = 293 K)

Solution:

Formula:

PM = dRT

R = general gas constant = 0.0821 atm.L/mol.K

M = molecular mass = 26.04 g/mol

0.910 atm × 26.04 g/mol = d × 0.0821 atm.L/mol.K×293 K

23.7  atm.g/mol = d × 24.1 atm.L/mol

d = 23.7  atm.g/mol / 24.1 atm.L/mol

d = 0.98 g/L

6 0
3 years ago
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