Chemistry! !

i'm suppose to convert the given information: gps speed of 40.1 miles per hour and convert that to meters, or convert 32.03 meters to miles.

i really do not understand how to do this, but if someone could show me where to start and teach me what to do i'd appreciate it. i'm just stuck : (

1. for the first question, we must find the mass of the anhydrous salt, mgso₄. the molar mass for mgso₄·7h₂o is 246.47 g/mol, while that of mgso₄ is 120.37 g/mol.7.834 g mgso₄·7h₂o * 1 mol mgso₄·7h₂o/246.47 g * 1 mol mgso₄/1 mol mgso₄·7h₂o * 20.37 g mgso₄/mol = 0.647 g mgso₄

2. mass of water = mass of sample - mass of anhydrous salemass of water = 7.834 - 0.647 = 7.19 gpercent water in hydrate = 7.19/7.834 * 100 = 91.74%

space exploration has led to the development and technological improvement of many everyday items. (if this answer is wrong i will find the right answer) : )

the volume increases

it is the most commonly accepted one