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Grade 11Physical Chemistry

1.80g of metal oxide required 833ml of hydrogen at NTP to be reduced to its metal find the equivalent weight of oxide and the metal

Profile image of Shikha
8 Years agoGrade 11
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1 Answer

Profile image of Sravan amar
8 Years ago
833 mL of H2 = 0.03719 mole of H2 M^+2 MO + H2 --> M + H2O M2O + H2 --> 2 M + H2O 1.8 g MO / 0.03719 mole = 48.4 g/mol of MO or M2O M = 32.4 g/mol M^+4 MO2 + 2 H2 --> M + 2 H2O 1.8 g MO2 / 0.01860 mole = 96.8 g/mol M = 64.8 g/mol M^+3 M2O3 + 3 H2 --> 2 M + 3 H2O 1.8 g M2O3 / 0.01240 = 145 M = 48.5 g/mol M^+1 M2O + H2 --> 2 M + H2O 1.8 g M2O / 0.03719 = 48.4 M = 24.2 g/mol Titanium(III)oxide Ti2O3 is fairly close. Titanium is 47.9 g/mol vs 48.5 calculated value