the molar mass of l2 is 253.80g/mol and the molar mass of nl3 is the 394.71g/mol. how many moles of l2 will form 38.58 g of ni3

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saulalejandro1p9ym57 saulalejandro1p9ym57

07-06-2018
Chemistry

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the molar mass of l2 is 253.80g/mol and the molar mass of nl3 is the 394.71g/mol. how many moles of l2 will form 38.58 g of ni3

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kenmyna kenmyna · Answer 1 · 2018-06-16T21:13:33+02:00

The moles of I2 that will form 38.58g of Ni3 is 0.147 moles

calculation
write the equation for reaction for formation of Ni3 from I2 and N2

that is 3I2 + N2 = 2NI3

find the moles of Ni3 formed = mass/molar mass

= 38.58g/ 394.71 g/mol = 0.098 moles

by use of mole ratio between I2 to NI3 which is 3 :2 the moles of I2

= 0.098 x3/2 = 0.147 moles