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postnew [5]
3 years ago
8

What is the purpose of a buffer?

Chemistry
2 answers:
devlian [24]3 years ago
8 0
The main purpose of a buffer solution is just to resist the change in pH so that the pH of the solution won't be much affected when we add an acid or base into it. The added acid or base is neutralized.
andrezito [222]3 years ago
8 0

Answer: A buffer solution is a solution made to prevent the pH level of something from changing when you add a base or an acid to it. For example, if you put a buffer solution in a pool, and then you put chlorine in it, the chlorine's effect on the PH level will be suppressed.

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Which of the following is the empirical formula for C4H8?
TEA [102]
It would be CH2! you’re just simplifying C4H8, 4 can go into C4 1 time (so we just say C) and 4 can go into H8 2 times (H2)
7 0
3 years ago
Read 2 more answers
How much energy must be added to a 2-kg piece of wood with a specific heat
lesya692 [45]

Answer:

A. 140,800 J

Explanation:

Specific heat of a material is defined as the amount of energy required to increase in 1°C 1kg of the material. <em>For wood there are required 1760J perkg per °C.</em>

The equation is:

Q = C*m*ΔT

<em>Where Q is heat in Joules,</em>

<em>C is specific heat (1760J/kg°C),</em>

<em>m is mass (2kg)</em>

<em>ΔT is change in temperature (50°C - 10°C = 40°C)</em>

Replacing:

Q = 1760J/kg°C*2kg*40°C

Q = 140800J

Right option is:

<h3>A. 140,800 J </h3>

<em />

6 0
3 years ago
How many atoms are in 2.00 moles of Helium
Snezhnost [94]

Answer:

maybe try 4.002602, good luck

7 0
3 years ago
1) In the boxes below, draw the model given in the simulation and draw a model of the molecules in an object when the object
sladkih [1.3K]

The molecules of the cold element are going to be closer together and still than the molecules of the hot element because the heat energy causes the molecules to be stimulated and to move.

<h3>How do molecules act at different temperatures?
</h3>

In the image you can see the behavior of the molecules when they are in different environments. On the right you see the cold molecules and on the left the hot molecules that are characterized by the following characteristics:

Cold molecules:

  • Molecules together.
  • Molecules with little movement.

Hot molecules:

  • Separate molecules.
  • Molecules with active movement.

A simple example to understand this behavior of molecules is water because:

  • When water is frozen its molecules are almost static and close together.
  • When the water is liquid and it is heated, the molecules move and that is why the water has bubbles, its molecules are separated.

Learn more about molecules in: brainly.com/question/19922822

6 0
3 years ago
I need this answered!!For a testtt!!!!!!!
DanielleElmas [232]
I can’t see the question
7 0
3 years ago
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