Question

If you have 1.0 mol of each of the following compounds, which will have the greatest mass?a. H3PO4b. NI3c. FeCl3d. KCI

Answer 1

Answer:B

Explanation:As number of moles=
`(mass in grams)/(Molar mass)`

then the one with the biggest Mm will have the biggest mass in grams

so H3PO4 has a molar mass of 97.994

NI3= 394.7

FeCl3=162.15

KCl=74.54

then NI3 would have the biggest mass in grams.