Carbon dioxide gas (CO2) has a molar mass of 44 g/mol. The two major components of air,
which are oxygen and nitrogen, have molar
masses of 32 g/mol and 28 g/mol, respectively.
Calculate the room-temperature densities in
g/L of nitrogen (N2), oxygen (O2), and carbon
dioxide (CO2) gases.

given:

mass of na = 115 g

excess cl2

to determine:

mass of nacl produced

explanation:

given reaction is-

2na(s) + cl2(g) → 2nacl(s)

since cl2 is in excess, na will be the limiting reagent

as per the reaction stoichiometry na: nacl = 1: 1

i.e. moles of na reacted = moles of nacl formed

now, # moles of na = mass of na/atomic mass

                                  = 115 g/23 g.mol-1 = 5 moles

therefore, moles of nacl = 5

molar mass of nacl = 58 g/mol

mass of nacl = 5 moles * 58 g.mol-1 = 290 g

ans: amount of nacl produced = 290 g

it’s previous models   because when i picked that son of a gun’s answer it was wrong look for previous models because they might make it a different letter  

air

in a tire you fill a tire with air

then a couple days later you check the air pressure in the tire

hope this mark me brainliest

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