Laboratory Experiments in Chemistry to Accompany Black And Conants Practical C
Laboratory Experiments in Chemistry to Accompany Black And Conants Practical C
Newton Henry Black
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Complete the equation for preparing hydrogen sulfide (H 2 S) : FeS + 2 HC1 ^ - + - - * Also complete the equation for testing for the gas with lead nitrate : H 2 S + Pb(N0 3 ) 2 > -. *+. " c. Properties. Fit the test tube with a 1-hole stopper and delivery tube as shown in figure 58. Collect the gas in a dry test tube by the upward displacement of air, remove the delivery tube, and light the gas in this test tube. As soon as the gas in the test tube burns quietly, attach a glass nozzle * or jet... to the delivery tube and set fire to the gas. * A glass nozzle or jet is made by heating a straight piece of glass tube in the Bunsen flame and when soft, pulling it out so that the bore is reduced. Then cut the tube off at the constricted portion. HYDROGEN SULFIDE 73 Cautiously smell the gas around the flame. Hold a cold, dry bottle over the flame and note whether any product of the combustion is condensed therein. What are products of the complete combustion of hydrogen sulfide? Write the equation.
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