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3 years ago

According to one acid base theory a base is an 1, h2 acceptor 2, h2 donor 3, h+ acceptor 4,h+ donor

Chemistry

1 answer:

kolbaska11 [484]3 years ago

5 0

Answer:

3, H⁺ acceptor

Explanation:

Let's consider Bronsted-Lowry acid-base theory.

According to this theory, an acid is a substance that donates H⁺ ions. For example, HCl is an acid.

HCl + H₂O = Cl⁻ + H₃O⁺

Cl⁻ is the conjugate base of HCl.

According to this theory, a base is a substance that accepts H⁺ ions. For example, NH₃ is a base.

NH₃ + H₂O = NH₄⁺ + OH⁻

NH₄⁺ is the conjugate acid of NH₃.

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A flexible container at an initial volume of 6.13 L contains 2.51 mol of gas. More gas is then added to the container until it r

aleksley [76]

Answer:

2.12 moles of gas were added.

Explanation:

We can solve this problem by using Avogadro's law, which states that at constant temperature and pressure:

V₁n₂=V₂n₁

Where in this case:

V₁ = 6.13 L

n₂ = ?

V₂ = 11.3 L

n₁ = 2.51 mol

We input the data:

6.13 L * n₂ = 11.3 L * 2.51 mol

n₂ = 4.63

As 4.63 moles is the final number of moles, the number of moles added is:

4.63 - 2.51 = 2.12 moles

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2 years ago

MArishka [77]

Answer:

B. bias

Explanation:

7 0

2 years ago

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Chlorofluorocarbons (CFCs) are no longer used as refrigerants because they destroy the ozone layer. Trichlorofluoromethane (CCl₃

Daniel [21]

Answer:

The molar entropy of the evaporation of Trichlorofluoromethan is 83.516 J/molK.

Explanation:

Entropy :It is defined as amount of energy which is unable to do work or the measurement of randomness or disorderedness in a system.

$S=\frac{Q}{T(Kelvins)}$

Molar heat of molar vaporization of Trichlorofluoromethane = 24.8 kJ/mol

Temperature at which Trichlorofluoromethan boils , T= 296.95 K

The molar entropy of the evaporation of Trichlorofluoromethan :

$=\frac{24.8 kJ/mol}{296.95 K}=0.083516 kJ/mol K = 83.516 J/molK$

The molar entropy of the evaporation of Trichlorofluoromethan is 83.516 J/molK.

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3 years ago

When the following equation is balanced, what is the coefficient for HBr?

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D.) Balanced equation is Zn + 2HBr - - - > ZnBr2 + H2.

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3 years ago

The equilibrium: 2 NO2(g) \Longleftrightarrow&iff; N2O4(g) has Kc = 4.7 at 100ºC. What is true about the rates of the forwar

Sergeeva-Olga [200]

Answer:

Initial: forward rate > reverse rate
Equilibrium: forward rate = reverse rate

Explanation:

2NO₂(g) → N₂O₄(g) Kc=4.7

The definition of equilibrium is when the forward rate and the reverse rate are equal.

Because in the initial state there's only NO₂, there's no possibility for the reverse reaction (from N₂O₄ to NO₂). Thus the forward rate will be larger than the reverse rate.

7 0

3 years ago