Which of the following explains the difference between rangeland management specialists and conservation biologists?
2 answers:
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Answer:
Newton per square meter (N/m2)
Explanation:
Required
Unit of ultimate tensile strength
Ultimate tensile strength (U) is calculated using:
The units of force is N (Newton) and the unit of Area is m^2
So, we have:
or
<em>Hence: (c) is correct</em>
Answer:
The pH of the solution will be equal to 5.46
Explanation:
The dissociation reaction of HCl is equal to:
HCl → H+ + Cl-
To solve the exercise we must first convert the µmoles to moles using the following conversion factor:
3.5µmoles x = 3.5x
moles
Assuming a liter of solution, we can calculate the molar concentration by:
M =
Replacing:
M = = 3.5x
moles/L
As this acid dissociates completely, the concentration of protons and chloride will be equal to 3.5xmoles/L
The pH will be equal to:
pH = -log[H+]
Replacing:
pH = -log[3.5x] = 5.46