Question #ca53b

1 Answer
Sep 4, 2017

Answer:

Approximately #8.82*10^-3mol# or #1.72g# of platinum.

Explanation:

This is a very vague question, but I will assume you're looking for how much they weigh.

#(5.31*10^21 mol.) * (mol)/(6.023*10^23mol.) approx 8.82*10^-3 mol#

Note that mol. is referring to molecules and mol (without the period) is referring to moles.

#8.82*10^-3 mol * (195.1g)/(mol) = 1.72g#