How many moles of mgcl2 are there in 324g of the compound?

So you use the molar mass, 95.211 g/mol to find the number of moles.

324 g MgCl2 • (1 mol / 95.211 g) = approx 3.403 moles

When doing conversions, set up fractions so that the units you want gone cancel diagonally.

This is what i found on google “when one phosphate group is removed by breaking a phosphoanhydride bond in a process called hydrolysis, energy is released, and atp is converted to adenosine diphosphate (adp). likewise, energy is also released when a phosphate is removed from adp to form adenosine monophosphate (amp).” i hope this you .