Agas with an empirical formula no2 has a molecular weight of 92.0g/mol. a possible molecular formula for the gas is a) no2 b) n2o3 c) n3o6 d) n2o5 e) n2o4

-

N₂O₄

Explanation: -

Emperical formula = NO2

Emperical formula mass = 14 x 1 + 16 x 2 =46 g /mol

Molecular weight = 92.0 g/mol

n =

=

= 2

Molecular formula = (Emperical formula)n

= (NO₂)₂

= N₂O₄

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.