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Vesnalui [34]
3 years ago
12

What is the H+ concentration in a solution with a pH of 1.25? ____× 10n M n= ____

Chemistry
2 answers:
Zina [86]3 years ago
8 0

Answer:

The H+ concentration is : 0,0562M (5,62 x 10 e-2 M)

Explanation:

The pH indicates the acidity or basicity of a substance. PH values between 0 and less than 7 indicate acidic solutions, 7 neutral and greater than 7 to 14 basic. It is calculated as

pH = -log (H +), and in this case we solve to calculate (H +):

(H +) = antilog -pH= antilog -1,25= <em>0,0562M</em>

Anettt [7]3 years ago
3 0

Answer:

5.62*10^nMn=-2

Explanation:

right on edg

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A should be the correct answer because any argument based on science makes a result more logical.
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which of the following statements correctly describes the relative masses of the particles in atoms ​
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protons and neutrons

Explanation:

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2 years ago
a sample of unknown material weighs 500 n in air and 200 n when immesersed in alcholol with a specfic gravity of 0.7 what is the
svet-max [94.6K]

Answer: The mass density is 1166.36 kg/m^{3}.

Explanation:

Given: Weight of sample in air (F_{air}) = 500 N

Weight of sample in alcohol (F_{alc}) = 200 N

Specific gravity = 0.7 = 0.7 \times 1000 = 700 kg/m^{3}

Formula used to calculate Buoyant force is as follows.

F_{B} = F_{air} - F_{alc}\\= 500 - 200 \\= 300 N

Hence, volume of the material is calculated as follows.

V = \frac{F_{B}}{\rho \times g}

where,

F_{B} = Buoyant force

\rho = specific gravity

g = acceleration due to gravity = 9.81

Substitute the values into above formula.

V = \frac{F_{B}}{\rho \times g}\\= \frac{300}{700 \times 9.81}\\= \frac{300}{6867}\\= 0.0437 m^{3}

Now, mass of the material is calculated as follows.

mass = \frac{F_{air}}{g}\\= \frac{500 N}{9.81}\\= 50.97 kg

Therefore, density of the material or mass density is as follows.

Density = \frac{mass}{volume}\\= \frac{50.97 kg}{0.0437 m^{3}}\\= 1166.36 kg/m^{3}

Thus, we can conclude that the mass density is 1166.36 kg/m^{3}.

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2 years ago
Hmuu;) to lazy for homework lol
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Answer:

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Explanation:

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3 years ago
I need help please .!
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hydrogen (H2),and oxygen (O2),, that is the answer





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