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What happens to the manganese in the oxygen generation experiment

Iodine Clock Kinetics Description A small plastic rocket is constructed from the calibrated bulb of a graduated plastic transfer pipet.

  • Collecting and Pop-Testing Oxygen;
  • Assume that hydrogen is 1 and oxygen is 2;
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This bulb is filled with water, and then most of the water is displaced - first with hydrogen and then oxygen. Electrodes are inserted into the device. A spark causes the mixture to ignite and launch the rocket.

Students are challenged to find the most "powerful" mixture and then use it to launch a rocket across the room! Objectives Hydrogen H2 and oxygen O2 are two gases that react with each other in a very quick, exothermic heat producing manner.

The explosiveness of this reaction is greatest when the hydrogen and oxygen are mixed in just the proper proportion. In this lab, you are generating hydrogen and oxygen and testing their explosive nature -- first separately, then in mixtures of different proportions.

Your goal is to find the most "powerful" mixture and then use it to launch a rocket across the room! Observe and Compare two gas-producing reactions. Apply the concept of combining ratios. Chemical Concepts Hydrogen reacts with oxygen in a very quick and exothermic manner. Additional energy is often required to get reactant particles to collide hard enough to initiate a reaction; this extra energy is known as the activation energy. Electric sparks add energy to the molecules.

Gas volumes in this experiment are directly related to the moles present. The combining volumes can be used to determine the ratio of the combining moles of material.

  1. Holding the bulb securely, pull the trigger and observe. The combining volumes can be used to determine the ratio of the combining moles of material.
  2. The fit should be loose, enabling water to leak out as the bulb collects the hydrogen gas.
  3. Physically, what do you see when you mix these 2 together what happens when these two mix also, can you explain your reasoning this is for a grade 9 lab report. Replace the lid, swirl gently, and set the generator in the petri dish beside the H2 generator.

Assume that hydrogen is 1 and oxygen is 2. Either reagent in a reaction may limit the extent of the reaction. Safety Safety goggles and apron must be worn throughout this activity. HCl is a strong corrosive acid. Wash all acid spills immediately with excess soap and water. Avoid ingesting the chemicals. The gas generators are more dangerous than the rockets. Wear your goggles as self-defense. Remember, others are using acid and shooting rockets too. Use the assigned launch pad and target area.

This serves as a recycling water supply during the experiment. Practice filling the bulbs entirely with water using the method suggested by your instructor.

Then, with the bulb held mouth upward, squeeze a second time, just to the point where the water inside the pipet starts to come out; then, still squeezing, dip the mouth into the petri again and draw up the remaining water needed to fill the bulb.

What happens to the zinc in the hydrogen generation experiment?

Your browser does not support the video tag. Use a thin stem pipet to deliver the water into the bulb. The H2 generator is a plastic vial containing several pieces of zinc metal Zn and capped with a nozzle-fitted lid. Remove the lid and carefully add enough 1. Replace the lid and set the generator in the petri dish of water.

  • Repeat steps 5 and 6, collecting oxygen gas this time, and pop-testing it with the piezo sparker;
  • The amount of water vapor contained in the collected gas depends on the temperature which, in turn, determines the vapor pressure of water;
  • In this lab, you are generating hydrogen and oxygen and testing their explosive nature -- first separately, then in mixtures of different proportions.

The O2 generator consists of an empty plastic vial capped with nozzle-fitted lid. Use 2-3 drops 10 drops if the catalyst is yeast water of the catalyst provided by your instructor. Replace the lid, swirl gently, and set the generator in the petri dish beside the H2 generator. Fill the collection bulb completely with water from the petri dish, and place it mouth-downward over the nozzle of the H2 generator.

The fit should be loose, enabling water to leak out as the bulb collects the hydrogen gas. As soon as the bulb is completely filled with the hydrogen, remove it from the nozzle and place a finger over the opening to prevent the collected gas from leaking out. Move your finger aside and insert the wire tip of the piezo sparker into the bulb. Holding the bulb securely, pull the trigger and observe. Record the loudness of the reaction on a scale of 1-10 where 10 is loudest in the first column of the data table.

What happens to the manganese in the oxygen generation experiment

Collecting and Pop-Testing Oxygen: Repeat steps 5 and 6, collecting oxygen gas this time, and pop-testing it with the piezo sparker. Record the loudness of the reaction on a scale of 1-10 in the last column of the data table. Collecting and Testing Different Mixtures: Begin to collect another bulb of O2, but after the bulb is one-sixth full, move the bulb from the O2 generator to the H2 generator and continue collecting; this gives you a 1: Pop-test it and record its relative loudness in the appropriate box second from the left in the data table below.

Then repeat this procedure, making the switch-over at various points so as to create mixtures of various proportions 2: Record relative loudness in the appropriate data table boxes. Note the amount of light also. Should either of the two generator reactions slow down to a point where it takes longer than one minute to collect a bulb, simply lift off the collection bulb and set it down on the lab bench, remove the lid from the generator, decant off the remaining liquid into the appropriate waste container, replace the liquid with fresh solution and catalyst for the oxygen generator from the appropriate bottle, replace the lid and resume gas collection.

Once you have determined the optimum loudest mixture of the two gases, collect it again, and bring it, along with your piezo sparker to the launch site designated by the instructor.

  • Use a thin stem pipet to deliver the water into the bulb;
  • Use 2-3 drops 10 drops if the catalyst is yeast water of the catalyst provided by your instructor;
  • Should either of the two generator reactions slow down to a point where it takes longer than one minute to collect a bulb, simply lift off the collection bulb and set it down on the lab bench, remove the lid from the generator, decant off the remaining liquid into the appropriate waste container, replace the liquid with fresh solution and catalyst for the oxygen generator from the appropriate bottle, replace the lid and resume gas collection;
  • To gain greater control over the chlorine production rate, one one can perform an experiment involving a reaction with oxygen gas;
  • HCl is a strong corrosive acid.

This time, instead of holding onto the bulb, aim it outward, at a designated target. Making sure nobody is in the line of fire, pull the trigger and launch your micro rocket. Can you think of ways to make your rocket go farther?