How do I solve this equation?

How many molecules are found in 1.32 mol of nacl?

Mike and mitchell decide to have a foot race. they mark off a stretch of 100 yards, and recruit cindy to work the stopwatch. after running the race and looking at the results, cindy declared that mitchell was the fastest. so how did the boys times compare?

What is the vapor pressure of a solution with a benzene to octane?