How many molecules are in one mole of each below. carbon monoxide (CO)
boron trihydride (BH3)
water (H20)

We know, mole is a link between the mass of atoms or molecules and the number of atoms or molecules.1 mole of atoms or molecules = 6.022 × 10^23 atoms or molecules.This number is known as Avogadro Number named after the scientist Amedeo Avogadro. So, the molecular formula of a substance represents 1 mole of molecules of that substance.So, 1 mole of carbon monoxide (CO) contains 6.022 × 10^23.Also, 1 mole of boron trihydride (BH3) contains 6.022 × 10^23.Similarly, 1 mole of water (H20) contains 6.022 × 10^23.

Answer:

6.022 × 10^23

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I'm not sure but i will try to find out