Question 7 An analysis performed in the same manner as the one described in Questions 4-6 indicated that 37.4 mg of solid titanium were recovered. If the sample that underwent analysis had a mass of 52.8 mg, what was the weight percent (w/w %) of titanium in the sample?
A standardized iron (II) solution that is 0.224 M in Fe2+ was used to determine the concentration of permanganate in solution. If the titration required 31.2 mL of Fe2+, how many moles of permanganate ion are present in solution?
The pertinent balanced chemical equation is: MnO4- (aq) + 5 Fe2+ (aq) + 8 H+ (aq) --> Mn2+ (aq) + 5 Fe3+ (aq) + 4 H2O (l).
Question 5
A standardized iron (II) solution that is 0.224 M in Fe2+ was used to determine the concentration of permanganate in solution. If the titration required 31.2 mL of Fe2+, how many moles of permanganate ion are present in solution?
The pertinent balanced chemical equation is: MnO4- (aq) + 5 Fe2+ (aq) + 8 H+ (aq) --> Mn2+ (aq) + 5 Fe3+ (aq) + 4 H2O (l).
An ore containing solid titanium was processed so that it would yield titanium (IV) permanganate. A titration with an iron (II) standard was performed that indicated that there were 2.25 x 10-3 moles of permanganate (MnO4-) present. How many milligrams of solid titanium were present in the sample that was processed?
An analysis performed in the same manner as the one described in Questions 4-6 indicated that 37.4 mg of solid titanium were recovered. If the sample that underwent analysis had a mass of 52.8 mg, what was the weight percent (w/w %) of titanium in the sample?
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