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2 years ago

Combine gas law: PV/T=k or (P1V1)/T1=(P2T2)/T2

Chemistry

2 answers:

tangare [24]2 years ago

6 0

Answer:

A and C

Explanation:

I took the test

dedylja [7]2 years ago

4 0

The containers that have equal pressures are Container A and Container C

From the question, we are to determine which containers have equal pressures.

Using the ideal gas law equation, we will determine the containers that have equal pressures.

From the ideal gas equation, we have

PV = nRT

Where,

P is the pressure

V is the volume

n is the number of moles

R is the gas constant

and T is the temperature

Then,

$P = \frac{nRT}{V}$

Container A

n = 0.5 mole

V = 11.2 L

$P = \frac{0.5 \times RT}{11.2}$

P = 0.04464RT

Container B

n = 2 moles

V = 22.4 L

$P = \frac{2 \times RT}{22.4}$

P = 0.0892857RT

Container C

n = 1 mole

V = 22.4 L

$P = \frac{1\times RT}{22.4}$

P = 0.04464RT

Container D

n = 2 mole

V = 11.2 L

$P = \frac{2 \times RT}{11.2}$

P = 0.17857RT

From above, we can observe that Container A and Container C have equal pressures. P = 0.04464RT

Hence, the containers that have equal pressures are Container A and Container C.

Learn more on Gas laws here: brainly.com/question/25736513

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according to the third law if a football player hits another player with an action force of 1500n how much will the reaction for

djyliett [7]

Answer:

The reaction would be 1500n (equal reaction)

Explanation:

This can be explained by Newton's third law of motion which states that for every action (force), there is an opposite and equal reaction. In other words, when two objects or people come in contact, the magnitude of force which they exert on each other is equal and they both feel an equal reaction force.

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2 years ago

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2 years ago

Hydrocyanic acid, HCN, is a weak acid. (a) Write the chemical equation for the dissociation of HCN in water. (b) Identify the Br

12345 [234]

Answer: a) $HCN(aq.)+H_2O\rightleftharoons H_3O^+(aq.)+CN^-(aq.)$

b) $HCN$ : acid $CN^-$ :conjugate base.

And, $H_2O$ : base $H_3O^+$ : conjugate acid.

c) $HCN(aq.)+NaOH(aq)\rightleftharoons NaCN(aq.)+H_2O(l)$

d) $NaCN(aq)\rightarrow Na^+(aq.)+CN^-(aq)$

e) $NaCN(aq)+HCl(aq)\rightarrow NaCl(aq.)+HCN(aq)$

Explanation:

a) Weak acid is defined as the acid which does not completely dissociates when dissolved in water. They have high pH. These releases $H^+$ ions in their aqueous states.

The equation for the dissociation of $HCN$ acid is given by:

$HCN(aq.)+H_2O\rightleftharoons H_3O^+(aq.)+CN^-(aq.)$

b) According to the Bronsted-Lowry conjugate acid-base theory, an acid is defined as a substance which looses donates protons and thus forming conjugate base and a base is defined as a substance which accepts protons and thus forming conjugate acid.

For the given chemical equation:

$HCN$ is loosing a proton, thus it is considered as an acid and after losing a proton, it forms $CN^-$ which is a conjugate base.

And, $H_2O$ is gaining a proton, thus it is considered as a base and after gaining a proton, it forms $H_3O^+$ which is a conjugate acid.

c) Neutralization reaction is a reaction in which an acid reacts with base to produce salt and water.

$HCN(aq.)+NaOH(aq)\rightarrow NaCN(aq.)+H_2O(l)$