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laiz [17]
3 years ago
12

fish give off the compound ammonia which has a PH above 7. To which class of compounds does ammonia belong?

Chemistry
2 answers:
SSSSS [86.1K]3 years ago
8 0

<u>Answer:</u> Ammonia is considered as a base.

<u>Explanation:</u>

pH is defined as the negative logarithm of hydrogen or hydronium ion concentration that are present in a solution.

The equation representing pH of the solution follows:

pH=-\log[H^+]

pH range of the solution varies from 0 to 14.

There are 3 types of solution: acidic, basic and neutral

  • If the pH of the solution is from 0 to 6.9, the solution is said to be acidic.
  • If the pH of the solution is from 7.1 to 14, the solution is said to be basic.
  • If the pH of the solution is 7, the solution is said to be neutral.

We are given:

Ammonia has a pH above 7. So, this compound is a basic compound.

Hence, ammonia is considered as a base.

fiasKO [112]3 years ago
5 0
The class of compounds that ammonia belongs to is it is categorized as a basic compound. As it posses a pH value or rating above 7, which is characteristic of basic substances, solutions.
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A balloon at 25°C has 30 L. What will the balloon's volume at 35°C?
anygoal [31]

The balloon's volume at 35°C : V₂=31.01 L

<h3>Further explanation</h3>

Given

T₁ = 25°C+273 = 298 K

V₁ = 30 L

T₂ = 35 °C + 273 = 308 K

Required

The new volume (V₂)

Solution

Charles's Law  

When the gas pressure is kept constant, the gas volume is proportional to the temperature  

\tt \dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}

Input the value :

V₂=(V₁.T₂)/T₁

V₂=(30 x 308)/298

V₂=31.01 L

8 0
2 years ago
Nitric acid (HNO3) is a strong acid that is completely ionized in aqueous solutions of concentrations ranging from 1% to 10% (1.
Alborosie

<u>Given:</u>

Concentration of HNO3 = 7.50 M

% dissociation of HNO3 = 33%

<u>To determine:</u>

The Ka of HNO3

<u>Explanation:</u>

Based on the given data

[H+] = [NO3-] = 33%[HNO3] = 0.33*7.50 = 2.48 M

The dissociation equilibrium is-

            HNO3   ↔    H+      +      NO3-

I            7.50               0                 0

C          -2.48          +2.48              +2.48

E            5.02            2.48              2.48

Ka = [H+][NO3-]/HNO3 = (2.48)²/5.02 = 1.23

Ans: Ka for HNO3 = 1.23

6 0
3 years ago
Can someone please help me with this Chem lab?
Jlenok [28]

Answer:

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Explanation:

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A 0.5 mol sample of He(g) and a 0.5 mol sample of Ne(g) are placed separately in two 10.0 L rigid containers at 25°C. Each conta
KiRa [710]

Answer:

Helum (He)g will escape faster

Explanation:

the phenomemenon can be explained by the Graham's law of diffusion.

Graham's law of difussion states that the rate of difussion is inversely proportional to the square root of the molecular mass,which means the gas with lower molecular mass will escape faster.

Helium gas has a molecular mass of 4 while Neon has a molecular mass of 10.

rate of diffusion of He/rate of difussion of Ne=√4/10=√0.4=0.63

It means He(g) will move 0.63 times faster than Ne(g) under the same condition

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Near the equator, the sun heats the surface strongly, causing warm air to rise steadily. This creates the _________________, an
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Doldrums, low is the correct answer.
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