Answer: The protection of the environment.
Explanation: An ecologist refers to an individual who handles the ecosystem and its constituents to perform surveys and evaluate the behavior and diversity of various species. They examine the association between the surrounding and its living things. They work for environmental consulting agencies, NGOs, and the government, and helps them in doing research and creating protocols and rules for the protection of the environment.
Answer:
23 kPa = Partial pressure O₂
Explanation:
In a mixture of gases, the sum of partial pressure of each gas that contains the mixture = Total pressure
Total pressure = Partial pressure N₂ + Partial pressure CO₂ + Partial pressure O₂
95 kPa = 48 kPa + 24 kPa + Partial pressure O₂
95 kPa - 48 kPa - 24 kPa = Partial pressure O₂
23 kPa = Partial pressure O₂
Answer:
a. True
Explanation:
Theoretical yield is the amount of product that could be obtained if a chemical reaction has 100% efficiency.
Hope it helps...
Answer:
The concentration of 
is 1.48 × 
M
The absolute uncertainty of ![[{H^{+}]](https://tex.z-dn.net/?f=%5B%7BH%5E%7B%2B%7D%5D)
is ±0.12 × M
The concentration of is written as 1.48(±0.12) × M
Explanation:
The pH of a solution is given by the formula below
pH = ![-log_{10}[{H^{+}]](https://tex.z-dn.net/?f=-log_%7B10%7D%5B%7BH%5E%7B%2B%7D%5D)
∴ ![[H^{+}] = 10^{-pH}](https://tex.z-dn.net/?f=%5BH%5E%7B%2B%7D%5D%20%3D%2010%5E%7B-pH%7D)
where is the concentration
From the question,
pH = 8.83±0.04
That is,
pH =8.83 and the uncertainty is ±0.04
First, we will determine from
![[{H^{+}] = 10^{-8.83}](https://tex.z-dn.net/?f=%5B%7BH%5E%7B%2B%7D%5D%20%3D%2010%5E%7B-8.83%7D)
![[{H^{+}] = 1.4791](https://tex.z-dn.net/?f=%5B%7BH%5E%7B%2B%7D%5D%20%3D%201.4791)
× M
![[{H^{+}] = 1.48](https://tex.z-dn.net/?f=%5B%7BH%5E%7B%2B%7D%5D%20%3D%201.48)
× M
The concentration of is 1.48 × M
The uncertainty of ( ![U_{[H^{+}] }](https://tex.z-dn.net/?f=U_%7B%5BH%5E%7B%2B%7D%5D%20%7D)
) from the equation is
![U_{[H^{+}] } = 2.303 \\](https://tex.z-dn.net/?f=U_%7B%5BH%5E%7B%2B%7D%5D%20%7D%20%3D%202.303%20%5C%5C)
× ![{[H^{+}] }](https://tex.z-dn.net/?f=%7B%5BH%5E%7B%2B%7D%5D%20%7D)
× 
Where is the uncertainty of
is the uncertainty of the pH
Hence,
= 2.303 × 1.4791 × × 0.04
= 1.36 × 
M
= 0.12 × M
Hence, the absolute uncertainty of is ±0.12 × M
