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2 years ago

How to find the Ka of an acid?

1 answer:

7 0

We know that acids have a pH of under 7.

We also need to:
Set up an ICE table for the chemical reaction. Solve for the concentration of H3O+ using the equation for pH Use the concentration of H3O+ to solve for the concentrations of the other products and reactants.

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Skeletal muscle is controlled by the organism.

rosijanka [135]

Some of the muscle attached to the skeleton is voluntary and may be used for movement.

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2 years ago

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The reation between sulfur dioxide and oxygen is a dynamic equilibrium. what happens when the pressure of the system is

ZanzabumX [31]

Answer:

In the above reaction, sulfur dioxide and oxygen react together to form sulfur trioxide. This means that an increase in pressure would move the equilibrium to the right and result in more sulfur trioxide being formed. Pressure can only affect the position of equilibrium if there is a change in the total gas volume.

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2 years ago

A balloon is launched when the temperature is 15 oC and the pressure is 0.918 atm. Its volume is 11.1 L. It rises in the air unt

ivann1987 [24]

Answer:

The new volume is 7,606.96 Liter.

Explanation:

The combined gas equation is,

$\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}$

where,

$P_1$ = initial pressure of gas in the balloon = 0.918 atm

$P_2$ = final pressure of gas in the balloon = 0.0012 atm

$V_1$ = initial volume of gas in the balloon = $11.1 L$

$V_2$ = final volume of gas in the balloon = ?

$T_1$ = initial temperature of gas in the balloon = $15^oC=273+15=288K$

$T_2$ = final temperature of gas in the balloon = $-15^oC=273-15=258K$

Now put all the given values in the above equation, we get:

$\frac{0.918 atm\times 11.1 L}{288 K}=\frac{0.0012 atm\times V_2}{258 K}$

$V_2=\frac{0.918 atm\times 11.1 L\times 258 K}{288 K\times 0.0012 atm}$

$V_2=7,606.97 L$

The new volume is 7,606.96 Liter.

5 0

2 years ago

Heat always flows from a_________ place to a_________ place.

algol [13]

Heat flows from high temperature to low temperature

5 0

2 years ago

Read 2 more answers

Consider the reaction represented by the equation?2SO2(g) + O2(g) 2SO3(g).?For the system at chemical equilibrium, which of the

rewona [7]

Answer:

b. The amount of SO3(g) decreases and the value for K increases.

Explanation:

Hello,

In this case, for the given reaction:

$2SO_2(g) + O_2(g)\rightleftharpoons 2SO_3(g)$

The change in the stoichiometric coefficient is:

$\Delta \nu=2-2-1=-1$

In such a way, since the reagents have more moles than the products, based on Le Chatelier's principle, if the volume is increased, the side with more moles is favored. In addition, since the formation of reagent is favored, K is diminished based on the law of mass action shown below:

$K=\frac{[SO_3]_{eq}^2}{[SO_2]_{eq}^2[O_2]_{eq}}$

Therefore the answer is:

b. The amount of SO3(g) decreases and the value for K increases.

Best regards.

3 0

2 years ago