The titanium alloy Ti–6Al–4V is a common metal employed in the manufacture of orthopedic implants. This weight percent composition of the alloy is 90 percent Ti, 6 percent Al, and 4 percent V. Determine the following for a Ti–6Al–4V femoral head component of a hip implant (mass of component is 1.5kg): (a) The mass (in grams) of each element in the implant. (b) The number of moles of each element in the implant. (c) The atom percent composition of the implant (d) Based on the solubility rules would you expect Al and V to have high or low solubility in Ti?

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a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o