Hydrogen cyanide, HCN, is a poisonous gas. The lethal doseis approximately 300 mg HCN per kilogram of air when inhaled.(a) Calculate the amount of HCN that gives the lethaldose in a small laboratory room measuring 12 * 15 * 8.0 ft.The density of air at 26 °C is 0.00118 g>cm3. (b) If the HCNis formed by reaction of NaCN with an acid such as H2SO4,what mass of NaCN gives the lethal dose in the room?2 NaCN1s2 + H2SO41aq2¡Na2SO41aq2 + 2 HCN1g2

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.