Answer:
The concentration is 0.025 M.
Explanation:
We will use beer law to find the concentration.
A = εmCl
This law relate to the linear equation Y = mx + b in following way,
A = y = absorbance
m = εm = slope or extinction coefficient in beer law.
x = c = concentration
and l is length which is 1 cm
Thus equation can be written as,
A = εmc + b
A - b / εm = c
in order to find the concentration we will abstract the intercept from absorbance and then divide it by the slop.
0.02 - 0.011 / 0.36 = c
c =0.009
c = 0.025 M.
<h3>0.020 × 1000 × 100</h3>
<h2>= 2000 mg of Sn</h2>
hope that helps !
Explanation:
A conservationist is someone who advocates and champions the cause to protect the environment and use earth's resource in a sustainable way.
One of the interesting perks of being a conservationist is the ability to preserve pristine nature.
- This aspect would most fascinate me.
- The joy of having to enact laws and policies that would preserve very vital aspect of the ecosystem would such a great delight.
- Also, having to champion the cause of indigenous people in whose voices are not often disseminated is a good catch
A combustion reaction is a reaction that reacts in the presence of oxygen molecules. Methane will release -3115 kJ/mol of heat.
<h3>What is a combustion reaction?</h3>
A combustion reaction includes the reaction between the chemical reactant and oxygen molecule to produce the product. The combustion reaction between methane and oxygen is given as:
CH₄(g) + 2O₂ (g) → CO₂(g) + 2H₂O (l), ΔH = -890 kJ/mol
The stoichiometry coefficient from the reaction gives 1 mole of methane releases -890 kJ/mol enthalpy.
So, 3.5 moles methane will release = 3.5 × -890 = -3115 kJ/mol
Therefore, -3115 kJ/mol of heat is released.
Learn more about combustion reaction here:
brainly.com/question/27823881
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In oil and gas industry:
When crude oil get extracted from well, salt water and some other stuff needs to be removed before oil can be sued in the car
