What is the definition of a buffer

2 answers:

6 0

A person or thing that prevents incompatible or antagonistic people or things from coming into contact with or harming each other. that is the definition of buffer

valkas [14]3 years ago

5 0

<span> A person or thing that prevents incompatible or antagonistic people or things from coming into contact with or each other.

Or to load </span>

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What is the balanced equation for the production of water?

Bess [88]

Answer:

H₂ + O₂ → H₂O

Now, check that oxygen has two atoms on the left and one on the right

so, you put 2 on the right side

H₂ + O₂ → 2H₂O

oxygen is balanced so, add 2 on H₂ to balance out hydrogen

THE FINAL BALANCED EQUATION:

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2 years ago

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True or False, same substances have the same properties?

ryzh [129]

Answer:

True

Explanation:

Pure substances are made of the same material throughout and have the same properties throughout.

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Which is a proper description of chemical equilibrium?

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D) because both reactions are occurring at the same rate. They are not equal but their concentrations are constant.

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Positive Deviation from Raoult's Law occurs when the vapour pressure of component is greater than what is expected in Raoult's L

8090 [49]

Answer:

All of the above.

Explanation:

In positive deviation from Raoult's Law occur when the vapour pressure of components is greater than what is expected value in Raoult's law.

When a solution is non ideal then it shows positive or negative deviation.

Let two solutions A and B to form non- ideal solutions.let the vapour pressure of component A is $P_A$ and vapour pressure of component B is $P_B$ .

$P^0_A$ = Vapour pressure of component A in pure form

$P^0_B$ = Vapour pressure of component B in pure form

$x_A$ =Mole fraction of component A

$x_B=$ =Mole fraction of component B

The interaction between A- B is less than the interaction A- A and B-B interaction.Therefore, the escaping tendency of liquid molecules in mixture is greater than the escaping tendency in pure form.Hence, the vapour pressure of a mixture is greater than the initial value of vapour pressure.

$P_A >P^0_A\cdot x_A$ , $P_B>P^0_B\cdot x_B$