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Home Question Bank Chemistry Archive 2024 December 22

Chemistry Questions from Dec 22,2024

Browse the Chemistry Q&A Archive for Dec 22,2024, featuring a collection of homework questions and answers from this day. Find detailed solutions to enhance your understanding.

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\( CH _ { 3 } COOH + H _ { 2 } O \rightarrow \) Un laboratorio requiere de \( 2000 \mathrm{~cm}^{3} \) de una solución anticongelante que consiste en \( 30 \% \) mol de metanol en agua ¿Qué volúmenes de metanol puro y de agua pura a \( 25^{\circ} \mathrm{C} \) se deben mezclar para formar los \( 2000 \mathrm{~cm}^{3} \) de anticongelante tambièn a \( 25^{\circ} \mathrm{C} \) ? Asuma qué es una solución ideal. Los volúmenes molares parciales para el metanol y el agua en una solución de \( 30 \% \) mol de metanol y sus volumenes molares de especie pura ambos a \( 25^{\circ} \mathrm{C} \) son los siguientes: Metanol (1) \( \quad \overline{V_{1}}=38.632 \mathrm{~cm}^{3} / \mathrm{mol} \quad V_{1}=40.727 \mathrm{~cm}^{3} / \mathrm{mol} \) Calcule además el error que se produce al asumir que la solucion es ideal. c. 5-etil-5metil-1,3-ciclohexadieno Using Dobereiner's law of triads, the missing number is \( \frac{\mathrm{Li}}{7}, \frac{\mathrm{Na}}{20}, \frac{\mathrm{~K}}{20} \). The density of \( \mathrm{SO}_{2} \) and \( \mathrm{CO}_{2} \) are \( 2.9 \mathrm{~g} / \mathrm{dm}^{3} \) and \( 1.98 \mathrm{~g} / \mathrm{dm}^{3} \) respectively. How much faster does \( \mathrm{CO}_{2} \) diffuse through a porous pot? Nếu một mẫu chất phóng xạ bắt đầu với 100g và giảm đi 12.5% mỗi giờ, tính khối lượng còn lại sau 4 giờ. Es el nombre correcto del compues \( \mathrm{CH}_{5}-\mathrm{CH}_{2}-\mathrm{C} \equiv \mathrm{C}-\mathrm{C} \equiv \mathrm{C}-\mathrm{C} \) a. \( 3,5,7 \) decatrino b. \( 3,5,7 \) decino c. \( 4,6,8 \) decino d. \( 4,6,8 \) decatrino
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