Chemistry Archive: Questions from May 02, 2023
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Calcule el cambio en el punto de congelación, de una solución de 38.1 gramos de Cloruro de potasio (KCI) en 258 gramos de agua. \( \mathrm{K}_{\mathrm{f}} \) del agua \( =1.86{ }^{\circ} \mathrm{C}2 answers -
Para la siguiente reacción: \[ \mathrm{Mg}^{2+}+\mathrm{Ni}(s) \rightarrow \mathrm{Mg}(s)+\mathrm{Ni}^{2+} \] ¿Qué reacción se lleva a cabo en el ánodo? \( \mathrm{Ni}(\mathrm{s})-->\mathrm{Ni}^{2 answers -
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In order to perform an experiment, a chemistry student needed 50 mL of a NaOH solution. The student performed his calculations and found that he needed 2g of NaOH (which is what he always used). Upon
Para poder realizar un experimento, un estudiante de química necesitaba \( 50 \mathrm{~mL} \) de una solución de \( \mathrm{NaOH} \). El alumno realizó sus cálculos y encontró que necesitaba \( 22 answers -
Pt \( \left|\mathrm{CrCl}_{3}\left(0.020 \mathrm{M}, \gamma_{ \pm}=0.85\right), \mathrm{CrCl}_{2}\left(0.025 \mathrm{M}, \gamma_{ \pm}=0.644\right) \| \mathrm{FeCl}_{2}\left(0.031 \mathrm{M}, \gamma_{2 answers -
Para los ejercicios III y IV usted dispone de un laboratorio con los siguientes reactivos. \( \mathrm{NaBH}_{4}, \mathrm{O}_{3}, \mathrm{KMnO}_{4}, \mathrm{CCl}_{4}, \mathrm{H}_{2}, \mathrm{Na}_{2} \m0 answers -
1) Proporcion the IUPAC names of the following compounds 2)Draw the structure that corresponds to the following names 3) Which of these two compunds is more acidic? Explain your answer
1. Proporcione los nombres IUPAC de los siguientes compuestos. (2 puntos cada uno) Acido \( (E)-4 \)-amino-3-metil-5 metoxihex- a. 3-enoico 2. Dibuje la estructura que corresponda a los siguientes nom2 answers -
1. Considere la siguiente reacción: \( 4 \mathrm{FeCl}_{3}+3 \mathrm{O}_{2} \rightarrow 2 \mathrm{Fe}_{2} \mathrm{O}_{3}+6 \mathrm{Cl}_{2} \) ¿Cuántos gramos de \( \mathrm{Fe}_{2} \mathrm{O}_{3} \)2 answers -
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