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Kryger [21]
3 years ago
9

How do humans affect vegetation

Chemistry
2 answers:
Gennadij [26K]3 years ago
6 0

Answer:

Humans are now responsible for causing changes in the environment that hurt animals and plant species. People - humans, will build on top of vegetation, that they don't know is there. Pollution is a big cause that needs to be stops also. Humans affect plants and vegetation a lot. But can also be good for it to.

Explanation:

Hope this helps a little.

Sunny_sXe [5.5K]3 years ago
5 0

Answer:

  • by human made fire like throwing after using ciggatettes
  • by deforestation cutting trees for making home,fuel etcetra
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torisob [31]

Based on Beer-Lambert's Law,

A = εcl ------(1)

where A = absorbance

ε = molar absorptivity

c = concentration

l = path length

Step 1: Calculate the concentration of the diluted Fe3+ standard

Use:

V1M1 = V2M2

M2 = V1M1/V2 = 10 ml*6.35*10⁻⁴M/55 ml = 1.154*10⁻⁴ M

Step 2 : Calculate the concentration of the sample solution

Based on equation (1) we have:

A(Fe3+) = ε(1.154*10⁻⁴)(1)

A(sample) = ε(C)(4.4)

It is given that the absorbances match under the given path length conditions, i.e.

ε(1.154*10⁻⁴)(1) = ε(C)(4.4)

C = 0.262*10⁻⁴ M

This is the concentration of Fe3+ in 100 ml of well water sample

Step 3: Calculate the concentration of Fe3+ in the original sample

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if you have any questions, leave them in the comments and i will try to answer them, if this helped, pls give brainliest.

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