Camp Nirvana sent a warning message over the CB radio. The Glass Skulls are patrolling the roadways and only allowing passage with a payment of 100 kg glass. The latest report stated there would be a possible run in every 400 miles. Your team has some solid glass blocks to use as bribe “money”. If the density of glass is 2500 kg per cubic meter and the blocks are 6 inch cubes, how many blocks should you take on your trip to ensure you have enough glass?

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