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Sagot :
Assuming a molar mass of 150 g/mol for methyl 2-hydroxy-6-methylbenzoate (estimate based on similar molecules), here's how to calculate the molarity of the pheromone solution:
* Convert secretion rate from ng/gland to moles:
* Secretion rate per gland = 1.08 ng/gland * (1 ug / 1000 ng) * (1 mmol / 1000 ug) = 1.08 x 10^-9 mmol/gland
* Total secretion rate from both glands = 1.08 x 10^-9 mmol/gland * 2 glands = 2.16 x 10^-9 mmol
* Convert solution volume from nL to L:
* Solution volume = 30.5 nL * (1 L / 1e9 nL) = 3.05 x 10^-8 L
* Calculate molarity:
* Molarity = moles of solute / liters of solution = (2.16 x 10^-9 mmol) / (3.05 x 10^-8 L) = 0.708 M
Therefore, the estimated molarity of the pheromone solution is approximately 0.708 M.
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