Which of the following gas samples would have the largest volume, if all samples are at the same temperature and pressure? 1) 5*10^23 molecules of O2
2) 263 grams of Xe
3) 0.403 moles CH4
4) they would all have the same volume​

d

Explanation:

they would all have the same volumes

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

50.23 i believe is correct but don't quote me on that.