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Katen [24]
3 years ago
13

The elements lithium and oxygen react explosively to from lithium oxide (Li2O). How much lithium oxide will form if 3.03 mol of

lithium react?
Answer in units of mol
Chemistry
1 answer:
lianna [129]3 years ago
7 0
The reaction equation:
2Li + O → Li₂O

Molar ratio of Li to Li₂O is:
2 : 1
So if 3.03 moles of Li are present:
2/1 = 3.03 / x
x = 1.515 moles of Li₂O will be produced.
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Ymorist [56]
I’m pretty sure it’s abode and cathode
4 0
3 years ago
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Necesito las caracteristicas fisicas y quimicas de la teoria inorganica del petroleo
Margarita [4]

Answer:

de lapora en ciesta coma bodre sin una jacsinis loadera comastora jingla belaa

Explanation:

7 0
3 years ago
At 800 K, the equilibrium constant, Kp, for the following reaction is 3.2 × 10–7. 2 H2S(g) ⇌ 2 H2(g) + S2(g) A reaction vessel a
djverab [1.8K]

Answer:

0.008945 atm

Explanation:

In the reaction:

2H2S(g) ⇌ 2 H2(g) + S2(g)

Kp is defined as:

Kp = P_{H_{2}}^2P_{S_{2}} / P_{H_{2}S}^2

<em>Where P is the pressure of each compound in equilibrium.</em>

If initial pressure of H2S is 3.00atm, concentrations in equilibrium are:

H2S = 3.00 atm - 2X

H2 = 2X

S2: = X

Replacing:

3.2x10^{-7} = (2X)^2X / (3-2X)^2

3.2x10^{-7} = 4X^3 / 9- 6X+4X^2

0 = 4X³ - 1.28x10⁻⁶X² + 1.92x10⁻⁶X - 2.88x10⁻⁶

Solving for X:

X = 0.008945 atm

As in equilibrium, pressure of S2 is X, <em>pressure is 0.008945 atm</em>

7 0
3 years ago
what is the boiling point of water at the top of mount everest where the atmospheric pressure is only 34% as strong
Tema [17]

This question is incomplete, the complete is;

Water has a heat of vaporization (ΔHvap) of 44.01 kJ mol-1 and boils at 100 degrees C at sea level.

What is the boiling point of water  at the top of Mount Everest where the atmospheric pressure is only 34% as strong as the pressure at sea level?

Answer: the boiling point of water at the top of mount Everest where the atmospheric pressure is only 34% as strong is 74 °C

Explanation:

Given that;

P1 = 1 atm,

T1 = 100°C =  373 K

P2 = P1 × 34% = 1×0.34 = 0.34 atm

T1 = ?

ΔH = 44.01 kJ mol⁻¹ = 44.01×10³ J/mol

R = 8.314 J/k.mol

now using the Clausius - Clapeyron equation;

p1_∫^p2 d.InP = ΔHvap/R T1_∫^T2. 1/T².dT

⇒ In(P2/P1) = ΔHvap/R (1/T1 - 1/T2)

so we substitute;

ln( 0.34/1 ) = ( 44.01×10³ / 8.314) × ( 1/373 - 1/T2)  

-1.0788 = 5293.4808 × ( 0.00268 - 1/T2)

-1.0788 = 14.1865 - 5293.4808(1/T2)

5293.4808(1/T2) = 14.1865 + 1.0788

5293.4808(1/T2) = 15.2653

(1/T2) = 15.2653 / 5293.4808

(1/T2) = 0.0028837

T2 = 1 / 0.0028837

T2 = 346.8 K

WE convert to Celsius

t2 =346.8 K − 273.15 = 73.65 °C ≈ 74 °C

Therefore, the boiling point of water at the top of mount Everest where the atmospheric pressure is only 34% as strong is 74 °C

8 0
3 years ago
When a molecule absorbs IR electromagnetic energy, what are the vibrational modes affected
Temka [501]

Answer:

Stretching vibration, and

Bending vibration (Rocking, wagging, Twisting and Scissoring)

Explanation:

  1. Stretching vibration: this causes change in the length of a bond
  2. Bending vibration: this causes change in the angle between two bonds

Bending vibration can occur as rocking, wagging, twisting and Scissoring vibration

2a) Rocking vibration: this causes change in angle between group of the atoms

2b) Wagging vibration: this causes change in angle between the plane of a group of atoms

2c) Twisting vibration: this causes change in the angle between the planes of two groups of atoms.

2d) Scissoring vibration: this causes the movement of two atoms toward and away from each other

5 0
3 years ago
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