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boyakko [2]
3 years ago
12

Which of the following formulas is used to determine the pH of a solution?

Chemistry
1 answer:
hjlf3 years ago
3 0

Answer:

pH = -log[H+]

Explanation:

The pH of a solution is simply the negative logarithm of the hydrogen ion concentration. It can thus be written mathematically as:

pH = -log[H+]

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An lemon in white light appears yellow to the human eye because yellow light is (reflected, absorbed, transmitted) by the lemon'
Arada [10]

We see that colour which is reflected by the surface because the object is made up of that colour.

<h3>What is the colour of lemon in white light?</h3>

A lemon in white light appears yellow to the human eye because yellow light is reflected by the lemon's surface while all other wavelengths of light are absorbed.

If the same lemon is placed into red light. It will appear to look red. This occurs because the red light will be transmitted by the lemon's surface and red light will be reflected to your eye.

So we can conclude that we see that colour which is reflected by the surface because the object is made up of that colour.

Learn more about colour here: brainly.com/question/911645

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6 0
2 years ago
Consider this reaction:
dedylja [7]

Answer:

0.13 M ( 2 s.f)

Explanation:

2Cl2O5 (g)-->2Cl2(g) +5O2 (g)

rate= (17.4 M -1 .s -1 ) [Cl2O5]2

From the rte above, we can tell that our rate constant (k)  = 17.4 M -1 .s -1

The units of k tells us this is a second order reaction.

Initial Concentration  [A]o = 1.46M

Final Concentration  [A] = ?

Time = 0.400s

The integrated rate law for second order reactions is given as;

1 / [A] = (1 / [A]o) + kt

1 /  [A] = [ (1/ 1.46) + (17.4 * 0.4) ]

1 /  [A] = 0.6849 + 6.96

1 /  [A] = 7.6496

[A] = 1 / 7.6496

[A] = 0.13073 M ≈ 0.13 M ( 2 s.f)

8 0
3 years ago
Which type of solid can be described by the unknown solid if it has the properties listed in the table below?
Bingel [31]

Answer:

Ionic

Explanation:

8 0
3 years ago
Name three elements that have been added to the periodic table since mendeleev's time
dolphi86 [110]
Lanthamides, actinides, noble gases
7 0
3 years ago
2CO + O2  2CO2
murzikaleks [220]

Answer:

75 L Co2

37.5 L o2

Explanation:

welcome.

3 0
3 years ago
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