Home Chemistry Help! What will cause an increase in the weight of an object Help! What will cause an increase in the weight of an objectChemistry Adejumoayobami1October 22, 20213 CommentsHelp! What will cause an increase in the weight of an object
given:mass of na = 115 gexcess cl2to determine:mass of nacl producedexplanation:given reaction is-2na(s) + cl2(g) → 2nacl(s)since cl2 is in excess, na will be the limiting reagentas per the reaction stoichiometry na: nacl = 1: 1i.e. moles of na reacted = moles of nacl formednow, # moles of na = mass of na/atomic mass = 115 g/23 g.mol-1 = 5 molestherefore, moles of nacl = 5molar mass of nacl = 58 g/molmass of nacl = 5 moles * 58 g.mol-1 = 290 gans: amount of nacl produced = 290 gReply
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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
The objects mass I took physical science