Respuesta :

Due to having STP conditions and given volume you can use this conversion: 1 mol=22.4L at STP. Since you have mL, convert to Liters first. 16800 mL = 16.8 L. You will need molar mass of Oxygen(O2)

16.8 L O2 x(1 mol/22.4 L) x( 31.998 g O2/1 mol) = 24.0 g O2

Alternatively, maybe you did not know 1 mol =22.4 L conversion, you can use PV=nRT will work, with P = 1 atm, R =0.08206 L(atm)/mol(k), and T=273 K, V = 16.8 L. Solve for n(moles), then multiply by molar mass of O2

The STP is known as standard temperature pressure.  The mass of the 16,800 mL of oxygen is 32 g.

Standard Temperature Pressure:

It is the standard environment for reactions at [tex]\bold{25^oC}[/tex] and 1 atm pressure. At STP 22.4 L of gas is equal to 1 mol.

Given here,

Volume of oxygen =  16800 mL = 22.4 L

The molar mass of the Oxygen molecule is 32 g

Number of moles in 22.4 L of oxygen at STP

[tex]\bold{ n = \dfrac{V}{22.4} } \\\\\bold{ n = \dfrac{22.4}{22.4} }\\\\\bold{ n = 1 mol}[/tex]

Mass of 1 mol Oxygen

[tex]\bold{W = n \times m}\\\\\bold{W = 1 \times 32}\\\\\bold{W = 32 g}[/tex]

Therefore, the mass of the 16,800 mL of oxygen is 32 g.

To know more about molar mass, refer to the link:

https://brainly.com/question/12127540