Question

*The number of molecules in a given quantity of a substance depends on the _____ of that substance.*

1️⃣ atomic mass
2️⃣ molecular mass in grams
3️⃣ molecular mass
4️⃣ Avogadro number​

Answer 1

Answer:

2️⃣ molecular mass in grams

Answer 2

Answer:

I think

1. MOLECULAR MASS IN GRAMS

Thanks

Explanation:

In chemistry, the amount of substance in a given sample of matter is defined as the number of discrete atomic-scale particles in it divided by the Avogadro constant NA. In a truly atomistic view, the amount of substance is simply the number of particles that constitute the substance.[1][2][3] The particles or entities may be molecules, atoms, ions, electrons, or other, depending on the context. The value of the Avogadro constant NA has been defined as 6.02214076×1023 mol−1. In the truly atomistic view, 1 mol = 6.02214076×1023 particles (the Avogadro number) [4] and therefore the conversion constant is simply NA = 1.[3] The amount of substance is sometimes referred to as the chemical amount.

The mole (symbol: mol) is a unit of amount of substance in the International System of Units, defined (since 2019) by fixing the Avogadro constant at the given value. Historically, the mole was defined as the amount of substance in 12 grams of the carbon-12 isotope. As a consequence, the mass of one mole of a chemical compound, in grams, is numerically equal (for all practical purposes) to the mass of one molecule of the compound, in daltons, and the molar mass of an isotope in grams per mole is equal to the mass number. For example, a molecule of water has a mass of about 18.015 daltons on average, whereas a mole of water (which contains 6.02214076×1023 water molecules) has a total mass of about 18.015 grams.