Question

10g of hydrogen contain___ molecules, if 2g of hydrogen contain 6.02*10²³ molecules.​

Answer 1

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30 x 10^23, or 3,010,000,000,000,000,000,000,000.

The quantity of molecules is measured by moles. Every substance has its molar mass, or grams per mole.

An atom consists of protons, neutrons and electrons. With the electrons weight negligible, a rough way to deduce the molar mass of a substance is to count the number of protons and neutrons of all atoms per molecule.

Each mole = 6.02x10^23

Hence, 5 x 6.02 x 10^23 gives 30.1 x 10^23

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Answer 2

Answer:

30 x 10^23, or 3,010,000,000,000,000,000,000,000.

The quantity of molecules is measured by moles. Every substance has its molar mass, or grams per mole.

An atom consists of protons, neutrons and electrons. With the electrons weight negligible, a rough way to deduce the molar mass of a substance is to count the number of protons and neutrons of all atoms per molecule.

Each mole = 6.02x10^23

Hence, 5 x 6.02 x 10^23 gives 30.1 x 10^23

Explanation:

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