Pheromones are a special type of compound secreted by the females of many insect species to attract the males for mating. one pheromone has the molecular formula c10h16o. normally, the amount of this pheromone secreted by a female insect is about 1.60 × 10−12 g. how many molecules does this quantity contain?

Answer : The number of molecules this quantity contains are

Explanation : Given,

Mass of =

Molar mass of = 152.23 g/mole

First we have to calculate the moles of .

Now we have to calculate the number of molecules of .

As we know that, 1 mole of substance always contains number of atoms.

As, 1 mole of contains number of molecules.

So,  of contains number of molecules.

Therefore, the number of molecules this quantity contains are

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the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.