Answer:
73 Draw a structural formula for the ethanol formed during this reaction.
74 Describe how the catalyst, zymase, speeds up this reaction.
75 Determine the total mass of ethanol produced when 270. grams of glucose reacts completely to form ethanol and 132 grams of carbon dioxide.
equals 3.265
Answer : The correct option is A substance that increases concentration when it is dissolved in water.
Explanation :
Arrhenius Definitions :
Answer:
b
Explanation:
Sodium thiosulfate is used as a reducing agent in the Kjeldahl procedure. It is used to prevent the interference of certain substances when determining nitrogen content in organic compounds.
During the digestion step of the Kjeldahl procedure, the organic sample is digested with sulfuric acid. This breaks down the organic compounds and converts the nitrogen present into ammonium sulfate. Some models may contain substances that can interfere with the next analysis. This can lead to inaccuracies in the outcomes.
Using sodium thiosulfate in the modified Kjeldahl procedure minimizes interference from certain compounds. The accuracy of the nitrogen determination is improved. This helps us to ensure that the results obtained are correct and instance of the actual nitrogen content in the sample.
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The role of Sodium thiosulfate in the modified Kjeldahl procedure is to act as a reducing agent and prevent interference from certain substances, such as nitrites and oxidizing agents, which can affect the accuracy of the nitrogen content determination in organic compounds.
In the modified Kjeldahl procedure, Sodium thiosulfate (Na2S2O3) plays a crucial role as a reducing agent. This procedure is commonly used for the determination of nitrogen content in organic compounds. The addition of Sodium thiosulfate to the reaction mixture serves to prevent interference from certain substances that can react with the reducing agent used in the procedure.
When performing the modified Kjeldahl procedure, it is important to accurately determine the nitrogen content in the sample. However, certain substances, such as nitrites and other oxidizing agents, can interfere with the reaction and affect the accuracy of the results. These interfering substances can react with the reducing agent, leading to inaccurate measurements.
By adding Sodium thiosulfate to the reaction mixture, these interfering substances are neutralized. Sodium thiosulfate acts as a reducing agent, effectively preventing the interference of nitrites and other oxidizing agents. This allows for a more accurate determination of the nitrogen content in the sample.
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Answer:
Inert gases
Explanation:
Inert elements have a stable electron configuration meaning their shells/orbitals are full with their requisite number of electrons. Therefore, gaining or losing an electron would take high ionization energy. Therefore they are less likely to be involved in chemical reaction unless a high amount of energy is used. An example of an inert gas is Helium.