What is the concentration (mg/L) of lead from a water sample with an absorbance of 0.413? Pls answer thank you so much

Q: What is the molarity of an aqueous solution that contains 0.0720 g CaH.O2 per gram of solution . The…

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Q: 2) If 5.0 mL of 0.00200 M Fe(NO3)3 is diluted to 50.0 mL, what is the concentration of Fe3+ in the…

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Q: Part A 112.0 mL of glacial acetic acid (pure HC₂H₂O, K.-18x 10 ) is diuted to 1.75 Express your…

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Q: Question 3 (1 point) What does the AT in the equation AH = m c AT represent?

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Q: A water sample contains ionic components at the concentrations shown. Ca2+ 78 mg/L Mg 2+ 95 mg/L Na*…

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Q: What is the molarity of a solution containing 14.0 g of KCl in 344 mL of solution?

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Q: A total of 2,800 mL of a boric acid antiseptic solution is prepared from boric acid concentrate. How…

A: given, the total volume of a boric acid antiseptic solution prepared (in mL) = 2,800 mL

Q: ngagenow.com/ilrn/takeAssignment/takeCovalentActivity.do?locator=assighmenl-lake [References) A…

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Q: What is the pOH of a solution prepared by diluting 128.9 mL of 1.476 M HNO, (ka>>1) to a total…

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Q: Molar concentration of the dye stock solution: 2.52e-5 mol/L Solutions(Dilutions) Absorbance…

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Q: Question 3 Which of the following would be soluble in water? O LiBr, Nal, HBr O CH, KOH, CH, O…

A: Answer: option a LiBr, NaI, HBr all are polar molecules hence soluble in water.

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Q: Write the chemical formula for iridium(III) hydrogen sulfite

A: Iridium (III) hydrogen sulfite contains: Iridium (III) ion=Ir3+ hydrogen sulfite ion= HSO3-

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Q: Suppose you measure a volume of 9.0 mL and a mass of 7.04 g for your first distillate. What is the…

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Q: Calculate the molarity of the two solutions. The first solution contains 0.450 mol of NAOH in 1.95 L…

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Precipitation Titration

Precipitation analysis is used to analyze drugs, and to measure the salt content in food and beverages. It is an important concept from the examination point of view many practical questions are asked on the topic. This topic is significant in the professional exams for both undergraduate and graduate courses, especially for