A 0.8436 g sample of an alloy containing zinc is dissolved in 8 M HCl and diluted to 100 mL in a volumetric flask. In one analysis, the zinc in a 25.00 mL portion of the solution is precipitated as ZINH,PO4, and subsequently isolated as pure Zn,P,0,. The mass of pure Zn,P,, isolated was 0.2263 g. ii) Calculate the gravimetric factor for the above analysis. (3 marks) iii) Using the gravimetric factor from cii) determine the weight percent of Zn in the sample. (4 marks)