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- If the ion chromatograph gives a value of 69.885 ppm of calcium ion, calculate its molarity. Molar mass (Ca) = 40.078 g/mol.3.Use the following atomic masses (in g/mol): Ca = 40.08; C = 12.01; O = 16; Na = 23; Cl = 35.45 3.) What is the percentage of Calcium in fruits using 5.0g sample consuming 12.5mL of 0.0565M EDTA? Each mL of 0.05M EDTA is equivalent to 2.002mg of CalciumA mixture containing only Al2O3 (FM 101.96) and Fe2O3 (FM 159.69) weighs 2.019 g. When heated under a stream of H2, the Al2O3 is unchanged, but the Fe2O3 is converted to metallic Fe plus H2O(g). If the residue weighs 1.774 g, what is the weight percent of Al2O3 in the original mixture? (Do not include % symbol in your answer.)
- Explain if it is possible to combine different types of mass analyzer.A substance with a molar mass of about 120 and containing only carbon and hydrogen; δ= 1,2 one in doublet (double), δ=2.9 in seventh and δ= 7.1 also gives a sharp singlet.what this ingredient could be ?Explain why the mass-to-charge ratio of lions in the EI mass spectrometer are usually equal to the mass of the ions?
- After creating her standard curve for absorption versus the concentration (M) of FD&C Red 40 and processing her data, Sally found that her drinking strength Kool-Aid sample had an FD&C Red 40 concentration of 1.086 x 10–5 M. If 0.133 grams of Kool-Aid powder was used to prepare an 8-fl oz cup of her assigned flavor, what is the percent by mass of FD&C Red 40 in her Kool-aid powder?How are halogens detected in an organic sample? Describe at least two procedures for detecting halogens and their positive results.The following 2-step experiment was conducted as shown in the image provided. Given that: MrH = 1 g/mol; MrC = 12 g/mol; MrN = 14 g/mol; MrO = 16 g/mol; MrCl = 35 g/mol. The following volumes of reagents were used: A = 7.5 ml (Density = 1.33 g/cm3)B = 10.0 ml (Density = 1.06 g/cm3)C = 10.0 ml ( Density = 0.99 g/cm3)E = 7.0 ml (Density = 1.51 g/cm3) Question: Calculate the limiting reagent (show all calculations).
- After creating her standard curve for absorption versus the concentration (M) of FD&C Red 40 and processing her data, Sally found that her drinking strength Kool-Aid sample had a concentration of 4.692 x 10–5 M. If 0.132 grams of Kool-Aid powder was used to prepare an 8-fl oz cup of her assigned flavor, what is the percent by mass of FD&C Red 40 in her Kool-aid powder? Report your answer as a percentage with two places after the decimal. Do not include the percentage sign in your answer. Pay attention to units. You are trying to find the mass percentage of red dye, so you need to know each variable in the equation in Appendix B. Note that the percent by mass equation should be multiplied by 100. There may be some useful conversion factors in the experimental procedure.How sample can be introduced into mass spectrometer and which method is more suitable.Which of the following factors can result in the broadening of the melting point of a sample? I. The sample is wet. II. The ramp rate is too slow. III. The sample contains a small amount of an impurity. IV. The compound decomposes during heating. Answers: I, III, and IV II and IV II and III III only II only I and III