State what was the mass of molecular oxygen from the air

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Reference no: EM13181574

A dull grey metallic -looking Substance, which weighed 3.6g, was burned in air completely to produce 13.2 g of a gas with the following properties. It quenched a burning flame , and it was heavier than air ( it would sink down to the bottom of a container). It was also found that the same quantity or mass of oxygen ( O2 ) consumed by burning the 3.6g of substance, if combined with exactly 1.2 g of hydrogen gas, produced 10.8 g of water.

A. what was the mass (g) of molecular oxygen from the air that combined with the substance to produce the dense gas?

B. What is the ratio of the weight of oxygen burned to the weight of the dense gas produced?

C. Given that the molecular mass of water H2O is 18 amu per molecule (or g/mol), what is the molecular mass of the dense gas?

D. What is the molecular composition of the dense gas and its chemical formula?

E. What is the element name and identity (and atomic mass) of the grey substance?

F.What is the common name of the dull gery-metallic-looking substance?

G. write a balanced chemical equation for the above oxidation reaction.

Reference no: EM13181574

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