Question

Which answer describes the measure of the amount of matter?

molar mass


STP

mole/s


kPa

Answer 1

MOLAR MASS

Step-by-step explanation:

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Answer 2

Moles

Step-by-step explanation:

Mole is used to describes the amount of matter. The one mole of every substance have different mass, because every matter has different mass. The one mole of substance is equal to the molar mass of that substance.

The molar mass of substance is the mass in gram in one mole and it is represented by g/mol.

For example:

The molar mass of oxygen is 16 g/mol. If we take 16 g of oxygen we would say we taken one mole of oxygen. If we take 32 g of oxygen than it is describe as two mole of oxygen.

Consider the following reaction:

2H₂ + O₂ → 2H₂O

In this reaction two mole of hydrogen gas combine with one mole of oxygen and produce two moles of water.