Chemistry, 25.02.2020 03:36 destmacklin
The carbon monoxide, CO, in a 20.3 L sample was converted to carbon dioxide, CO2, by passing the gas over iodine pentoxide, I2O5, heated to 150ï‚°C: 5 CO(g) + I2O5(s) ï‚® 5 CO2(g) + I2(g) The iodine, I2, gas was collected in an absorber containing 8.25 mL of 0.01101 CM Na2S2O3: I2(g) + 2 S2O3 2ï€(aq) ï‚® 2 Iï€(aq) + S4O6 2ï€(aq) The excess Na2S2O3 was back-titrated with 2.16 mL of 0.00947 M I2 solution. What is the concentration of CO in the air sample in units of mg CO per liter
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Glucose (c6h12o6) is an important biological molecule. (round the answer to nearest hundredth.) what is the percent by mass of carbon in glucose?
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Which statement best summarizes the importance of ernest rutherford’s gold foil experiment? it proved that all of john dalton’s postulates were true. it verified j. j. thomson’s work on the atomic structure. it showed that an electron circles a nucleus in a fixed-energy orbit. it showed that a nucleus occupies a small part of the whole atom.
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Time remaining 58: 10 an atom that has 84 protons and 86 neutrons undergoes a reaction. at the end of the reaction, it has 82 protons and 84 neutrons. what happened to the atom? it accepted radiation in a chemical reaction it donated neutrons to another atom in a chemical reaction it emitted an alpha particle in a nuclear reaction. it accepted protons in a nuclear reaction. mark this and retum save and exit next submit
Answers: 3
The carbon monoxide, CO, in a 20.3 L sample was converted to carbon dioxide, CO2, by passing the gas...
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