Answer to Question #126532 in Inorganic Chemistry for Quanda

Question #126532
Air is a mixture of gases. 900 cm^3 of a sample of dry air at room temperature and pressure was passed over 0.5 g of heated copper turnings in a hard glass tube and, a solid A was formed and the resulting gas B was bubbled into sodium hydroxide solution.
a) What component of the air sample was absent in B? Calculate its volume in the air sample.
b) Determine the empirical formula of the solid A.
c) Write a chemical equation to show the component of the air sample removed during bubbling into the solution of sodium hydroxide.
d) Name the main component of the air remaining after the component in (c) above was removed.
State its percentage composition by volume in air
f) Write a balanced chemical equation for the laboratory preparation of the component in (c) above.
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