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What is a reagent blank? Why should we include this in making our calibration curve?
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- 6. Explain the reason why a laboratory analyst should not return excess or unused chemicals back in their respective reagent bottles.-Explain the distillation test. -Explain the Bomb Calorimeter test. -Explain the viscosity test.When measuring the caffeine content in coffee, the molecules in the sample will absorb light. The absorbed light data provides information that can then be used in determining the concentration of caffeine. Both statements are correct. 1st statement is True. 2nd statement is False. 1st statement is False. 2nd statement is True. Both statements are False.
- 4. If sugar is melted to the liquid state and then allowed to condense back into a solid has anything happened to change the sugar molecules? Explain your answer. (2-3 sentences)I don't really understand how to read mass spec graphs. I am wondering how to read either one of these graphs.4. help use sig figs pls
- 1 a. b. C. d. e. f. g. CH3OH C₂H5OH H3C CH3 H3C ਸ HBr 1. NaH CH3 2. C₂H5CI Br H3C -H H- HO H CH3 H CH3 CH₂CH3 H3CH₂C H3C H 27 H Br -CH₂CH₂CH3 CH₂CH₂CH3 H3CH₂C CH3OH tº CH3ONa tº H OH H CH₂CH₂CH3 H3C NaOC₂H5 PBr3 CH3O OH SOCI₂ CH3 CH₂CH₂CH3 HBr CH3 нотн CH₂CH₂CH3 NaH DMSO CH3ONa tºIV. 'O'O "O"0." III. -CH3Can you show an example that’ll answer this question? I’m having hard time filling out these boxes.