Respuesta :

find the molar mass first
pb=207.2 and O=16
molar mass=(207.2∗1)+(16∗2)
                  =207.2+32  =239.2g/mol
mole= mass/molar mass
mass=mole∗molar mass
mass=3.7∗239.2
mass=885.0g

Answer : The mass of the 3.7 mole of [tex]PbO_2[/tex] is, 885.04 grams

Solution : Given,

Moles of [tex]PbO_2[/tex] = 3.7 moles

Molar mass of [tex]PbO_2[/tex] = 239.2 g/mole

Formula used :

[tex]\text{Mass of }PbO_2=\text{Moles of }PbO_2\times \text{Molar mass of }PbO_2[/tex]

Now put all the given values in this formula, we get the mass of [tex]PbO_2[/tex]

[tex]\text{Mass of }PbO_2=(3.7moles)\times (239.2g/mole)=885.04g[/tex]

Therefore, the mass of the 3.7 mole of [tex]PbO_2[/tex] is, 885.04 grams