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Home Question Bank Chemistry Archive 2024 December 12

Chemistry Questions from Dec 12,2024

Browse the Chemistry Q&A Archive for Dec 12,2024, featuring a collection of homework questions and answers from this day. Find detailed solutions to enhance your understanding.

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Lab Report: Lewis Structures and Molecular Shapes What is the vapor pressure of a liquid (in mmHg ) at 298.15 K if its \( \Delta \mathrm{Hvap}=28.9 \mathrm{~kJ} / \) mol and its normal boiling point is \( 341.88 \mathrm{~K} ? \) We can convert the product of passing water vapor on red hot iron into reddish brown precipitate...................... (Exam 2 L 2 Ch 3 ) a) roasting then reduction at blast furnace then heating with chlorine then adding ammonia solution. b) roasting then reduction at midrex furnace then adding diluted hydrochloric acid then adding sodium hydroxide solution. c) sintering then reduction at midrex furnace then heating with chlorine then adding ammonia solution. d) by heating with chlorine then adding ammonia solution. Para un elemento Se puede calcular dividiendo su peso atomico entre la valenc cipa. \[ P E_{\text {elemento }}=\frac{\text { Peso atómico }}{\text { Valencia }}=\frac{\mathrm{g}}{\mathrm{g}-\mathrm{eq}} \] b) Una muestra de lisina preparada mediante un procedimiento sintético presentó un valor de \( [\mathrm{a}] \mathrm{D}=+8,1^{\circ} \) (c \( =2 \mathrm{~g} \mathrm{~mL} \mathrm{~mL}^{-1}, \mathrm{H}_{2} \mathrm{O} \) ), inferior a la que corresponde al enantiómero puro ¿Cuál es la pureza óptica de la lisina sintética? c) Elija entre las siguientes composiciones la(s) que se ajuste( n\( ) \) al valor de la rotación óptica indicada en el apartado anterior: i) \( 60 \% \) del enantiómero (+) y \( 40 \% \) del enantiómero (-) ii) \( 60 \% \) del enantiómero (+) y \( 40 \% \) de mezcla racémica (+/-) iii) \( 80 \% \) de enantiómero (+) y \( 20 \% \) del enantiómero (-) Question 10 A sewage treatment plant discharges a pollutant with a concentration of \( 5 \mathrm{mg} / \mathrm{L} \). The plant's total discharge is 0.3 MGD (millions of gallons per day). Determine the rate of pollutant released in pounds per day. Give your answer accurate to at least two decimal places. Submit Question Submit Question Question 10 A sewrage treatment plant discharges a pollutant with a concentration of \( 7 \mathrm{mg} / \mathrm{L} \). The plant's total discharge is 0.3 MGD (millions of gallons per day). Determine the rate of pollutant released in pounds per day. Give your answer accurate to at least two decimal places. Submit Question A sewage treatment plant discharges a pollutant with a concentration of \( 9 \mathrm{mg} / \mathrm{L} \). The plant's total discharge is 0.5 MGD (millions of gallons per day). Determine the rate of pollutant released in pounds per day. Give your answer accurate to at least two decimal places. Question 10 A sewage treatment plant discharges a pollutant with a concentration of \( 8 \mathrm{mg} / \mathrm{L} \). The plant's total discharge is 0.5 MGD (millions of gallons per day). Determine the rate of pollutant released in pounds per day. Give your answer accurate to at least two decimal places. Sibmit Question Score on last try: 0 of 1 pts . See Details for more. A sewage treatment plant discharges a pollutant with a concentration of \( 16 \mathrm{mg} / \mathrm{L} \). The plant's total discharge is 0.35 MGD (millions of gallons per day). Determine the rate of pollutant released in pounds pe day. Give your answer accurate to at least two decimal places. Hint: 0.35 MGD is 350,000 gallons per day. Submit Question
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