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4 years ago

Write a balanced reaction for the neutralization of hbr upon the addition of koh

Chemistry

1 answer:

kakasveta [241]4 years ago

8 0

Neutralization reaction is defined as reaction between an acid and a base to form salt and water.

The general reaction is as follows:

$HA+ BOH\rightarrow AB+H_{2}O$

Here, HA is acid, BOH is base and AB is salt formed from corresponding conjugate base and acid.

According to general reaction, the neutralization reaction of HBr and KOH is as follows:

$HBr+ KOH\rightarrow KBr+H_{2}O$

Here, HBr is a strong acid, KOH is a strong base and KBr is neutral salt.

In the above reaction, all the constituents on left hand side of the reaction arrow are equal to the constituents on right hand side thus, the neutralization reaction is balanced.

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C4H8(g)⟶2C2H4(g) C4H8(g)⟶2C2H4(g) has an activation energy of 262 kJ/mol.262 kJ/mol. At 600.0 K,600.0 K, the rate constant, ????

Yanka [14]

Answer:

Rate constant at 725 K is $5.2\times 10^{-4}s^{-1}$

Explanation:

According to Arrhenius equation for a reaction-

$ln(\frac{k_{2}}{k_{1}})=\frac{E_{a}}{R}(\frac{1}{T_{1}}-\frac{1}{T_{2}})$

where $k_{2}$ and $k_{1}$ are rate constants of reaction at $T_{2}$ and $T_{1}$ temperatures (in kelvin) respectively.

$E_{a}$ is activation energy of reaction.

Here $T_{1}$ = 600 K , $k_{1}$ = $6.1\times 10^{-8}s^{-1}$

$T_{2}$ = 725 K, $E_{a}$ = 262 kJ/mol and R = 8.314 J/(mol.K)

So plugin all the values in the above equation-

$ln(\frac{k_{2}}{6.1\times 10^{-8}s^{-1}})=\frac{262\times 10^{3}J/mol}{8.314J/(mol.K)}\times (\frac{1}{600K}-\frac{1}{725K})$

So, $k_{2}$ = $5.2\times 10^{-4}s^{-1}$

Hence rate constant at 725 K is $5.2\times 10^{-4}s^{-1}$

7 0

4 years ago

The partial pressure of hellium gas in a gaseous mixture of hellium and hydrogen is<br>

RUDIKE [14]

Answer:

The partial pressure of helium gas in a gaseous mixture of helium and hydrogen is the pressure that the helium would exert in the absence of the hydrogen. equal to the total pressure divided by helium's molar mass. O equal to the total pressure divided by the number of helium atoms present.

Hope this Helps (✿◡‿◡)

8 0

3 years ago

One problem caused by technology is pollution

balandron [24]

I think this is true because..

technology negatively affects the environment by compromising human health and safety... endangering natural ecosystem and biodiversity... having a cumulative impact on global systems... and depleting natural resources. Technology positively affects the environment through the application of environmental science to solve problems caused by human environmental impact.

Risks to humans from environmental damage through technology include inhalation of dangerous chemicals in air pollution, contamination of water and food sources, and risk of infections and diseases through exposure to toxic wastes. Flora and fauna risk habitat loss or disruption and extinction of species through exposure to dangerous byproducts of technology. Greenhouse gases affect atmosphere and weather systems, causing global warming and chlorofluorocarbons that deplete the Earth's ozone layer. Technology consumes resources which are not necessarily renewable, including living resources, such as forests and populations of fish, and inanimate resources, such as natural chemicals and minerals.

Although technology damages the environment in many ways..it can also have the capability to limit or prevent damage using such environmental technologies such as recycling...the exploitation of renewable energy sources such as solar power and wind power... the purification of polluted air and water,and the treatment of sewage and factory wastes.. and the development and production of devices that promote energy conservation.....so this is why i think this is the answer! ☺

Hopefully this helped you!☺

4 0

4 years ago

Which element could likely substitute for Si in a solid solution?

yulyashka [42]

Answer:aluminum

Explanation:aluminum is a precious metal which means that it can be changed into a liquid solid or gas

4 0

3 years ago

When agno3 was added to test tube d it reacted with cl to form agcl precipitate. Did this result in a shift to the right or the

AlekseyPX

Answer:

Reaction will move rightwards.

Explanation:

Hello there!

In this case, according to the proposed question, it turns out possible for us to figure out the effect of the addition of silver nitrate, by using the following representative equation for the formation of the silver chloride precipitate:

$Ag^+(aq)+Cl^-(aq)\rightleftharpoons AgCl(s)$

Now, due to the addition of silver nitrate, we will be actually adding silver ions to the solution, which means that, in terms of the Le Ch atelier's principle, the reaction will shift to the right towards the formation of more silver chloride precipitate.

Best regards!

4 0

3 years ago