23.1%

add up the first few (Mole fraction x Molar Mass), you’ll see the molar mass of dry air is ~29

divide oxygen’s (Mole fraction x Molar Mass) / 29 and you’ll get .231135…

so, to 3 sig figs: oxygen is 23.1% by mass in dry air

This Site Might Help You.

RE:

Calculate the mass percentage of oxygen in dry air?

Air is a mixture of several gases. The 10 most abundant of these gases are listed here along with their mole fractions and molar masses.

Component Mole fraction Molar mass(g/mol)

Nitrogen 0.78084 28.013

Oxygen 0.20948 31.998

Argon 0.00934 39.948

Carbon…

Percent Oxygen In Air

23.1%

add up the first few (Mole fraction x Molar Mass), you’ll see the molar mass of dry air is ~29

divide oxygen’s (Mole fraction x Molar Mass) / 29 and you’ll get .231135…

so, to 3 sig figs: oxygen is 23.1% by mass in dry air

This Site Might Help You.

RE:

Calculate the mass percentage of oxygen in dry air?

Air is a mixture of several gases. The 10 most abundant of these gases are listed here along with their mole fractions and molar masses.

Component Mole fraction Molar mass(g/mol)

Nitrogen 0.78084 28.013

Oxygen 0.20948 31.998

Argon 0.00934 39.948

Carbon…

Percent Oxygen In Air

23.1%

add up the first few (Mole fraction x Molar Mass), you’ll see the molar mass of dry air is ~29

divide oxygen’s (Mole fraction x Molar Mass) / 29 and you’ll get .231135…

so, to 3 sig figs: oxygen is 23.1% by mass in dry air

This Site Might Help You.

RE:

Calculate the mass percentage of oxygen in dry air?

Air is a mixture of several gases. The 10 most abundant of these gases are listed here along with their mole fractions and molar masses.

Component Mole fraction Molar mass(g/mol)

Nitrogen 0.78084 28.013

Oxygen 0.20948 31.998

Argon 0.00934 39.948

Carbon…

Percent Oxygen In Air

23.1%

add up the first few (Mole fraction x Molar Mass), you’ll see the molar mass of dry air is ~29

divide oxygen’s (Mole fraction x Molar Mass) / 29 and you’ll get .231135…

so, to 3 sig figs: oxygen is 23.1% by mass in dry air

This Site Might Help You.

RE:

Calculate the mass percentage of oxygen in dry air?

Air is a mixture of several gases. The 10 most abundant of these gases are listed here along with their mole fractions and molar masses.

Component Mole fraction Molar mass(g/mol)

Nitrogen 0.78084 28.013

Oxygen 0.20948 31.998

Argon 0.00934 39.948

Carbon…

Percent Oxygen In Air

23.1%

add up the first few (Mole fraction x Molar Mass), you’ll see the molar mass of dry air is ~29

divide oxygen’s (Mole fraction x Molar Mass) / 29 and you’ll get .231135…

so, to 3 sig figs: oxygen is 23.1% by mass in dry air

This Site Might Help You.

RE:

Calculate the mass percentage of oxygen in dry air?

Air is a mixture of several gases. The 10 most abundant of these gases are listed here along with their mole fractions and molar masses.

Component Mole fraction Molar mass(g/mol)

Nitrogen 0.78084 28.013

Oxygen 0.20948 31.998

Argon 0.00934 39.948

Carbon…

Percent Oxygen In Air

23.1%

add up the first few (Mole fraction x Molar Mass), you’ll see the molar mass of dry air is ~29

divide oxygen’s (Mole fraction x Molar Mass) / 29 and you’ll get .231135…

so, to 3 sig figs: oxygen is 23.1% by mass in dry air

This Site Might Help You.

RE:

Calculate the mass percentage of oxygen in dry air?

Air is a mixture of several gases. The 10 most abundant of these gases are listed here along with their mole fractions and molar masses.

Component Mole fraction Molar mass(g/mol)

Nitrogen 0.78084 28.013

Oxygen 0.20948 31.998

Argon 0.00934 39.948

Carbon…

Percent Oxygen In Air