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Chapter 1: Problem 11
Fill in the blanks. "ous" acid of a nonmetal "X" has 2 "'O" atoms. Per acid of the same nonmetal has the formula ___
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Fill in the blanks. Mole fraction of \(\mathrm{NaOH}\) in an aqueous solution is 0.3. Mole fraction of water is
State whether the following statements are true or false. When a \(200 \mathrm{ml}\) gas, in a closed vessel, is heated to \(50^{\circ} \mathrm{C}\) from \(25^{\circ} \mathrm{C}\), the volume becomes doubled.
Calculate the molarity of a solution obtained by mixing \(250 \mathrm{ml}\) of \(0.5 \mathrm{M}\) HCl with \(750 \mathrm{ml}\) of \(2 \mathrm{M}\) HCl. (a) \(1.8\) (b) \(2.0\) (c) \(1.6\) (d) \(0.8\)
Fill in the blanks. The ratio of the gram atomic weight of nitrogen and oxygen is __
Empirical formula of a compound is \(\mathrm{A}_{2} \mathrm{~B}_{4} .\) If its empirical formula weight is half of its vapour density, determine the molecular formula of the compound. (a) \(\mathrm{A}_{4} \mathrm{~B}_{8}\) (b) \(\mathrm{A}_{8} \mathrm{~B}_{16}\) (c) \(\mathrm{A}_{2} \mathrm{~B}_{4}\) (d) \(\mathrm{A}_{3} \mathrm{~B}_{6}\)
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