Question

A given sample of a xenon fluoride compound contains a molecules of type XeF(sub)n, where n is a whole number Given that 9.03X10²⁰ molecules of XeFn weighs 0.311g, determine that the value of n in the formula

Answer 1

To determine the value of n in the formula XeFn, we need to use the given information about the mass and number of molecules. Using the molar mass of xenon, we can find the value of n by dividing the molar mass of XeFn by the molar mass of xenon. Finally, we substitute the calculated value of n into the formula XeFn to determine the empirical formula of the xenon fluoride compound.

Step-by-step explanation:

The empirical formula of a compound is the simplest ratio of the elements present in the compound. To determine the value of n in the formula XeFn, we need to use the given information about the mass and number of molecules.

Given that 9.03x1020 molecules of XeFn weigh 0.311g, we can calculate the molar mass of XeFn using the formula:

Molar mass = Mass / Number of moles

Molar mass of XeFn = 0.311g / (9.03x1020 molecules x Avogadro's number)

Using the molar mass of xenon (131.3 g/mol), we can find the value of n by dividing the molar mass of XeFn by the molar mass of xenon:

n = Molar mass of XeFn / Molar mass of xenon

Finally, we substitute the calculated value of n into the formula XeFn to determine the empirical formula of the xenon fluoride compound.