Chemistry, 12.11.2020 01:00 BigGirlsTheBest
Demuestre que tan buenas son las aproximaciones de 1/3 km/s y 1/5 mi/s para referirse a la rapidez del sonido. Considere condiciones de temperatura ambiente y aire seco(20°C). a) Determine el porcentaje de error de cada una. B) Suponga que ocurre una tormenta con relámpagos en un día muy caluroso con una temperatura de 38°C y aire seco. ¿Los porcentajes de error en el ejemplo aumentan o disminuyen?Justifique su respuesta. Rta: 333m/s, 322 m/s, b) 2.9%, 6.1%
Answers: 3
Chemistry, 21.06.2019 13:50
Aluminum–lithium (al-li) alloys have been developed by the aircraft industry to reduce the weight and improve the performance of its aircraft. a commercial aircraft skin material having a density of 2.47 g/cm3 is desired. compute the concentration of li (in wt%) that is required.
Answers: 3
Chemistry, 22.06.2019 10:00
In a water molecule, hydrogen and oxygen are held together by a(an) bond. a) double covalent b) ionic c) nonpolar covalent d) hydrogen e) polar covalent
Answers: 1
Chemistry, 22.06.2019 18:10
Given the following at 25c calculate delta hf for hcn (g) at 25c. 2nh3 (g) +3o2 (g) + 2ch4 (g) > 2hcn (g) + 6h2o (g) delta h rxn= -870.8 kj. delta hf=-80.3 kj/mol for nh3 (g), -74.6 kj/mol for ch4, and -241.8 kj/mol for h2o (g)
Answers: 1
Chemistry, 22.06.2019 22:20
Asuspension of yeast cells is being grown under anaerobic conditions such that glucose is degraded to ethanol and carbon dioxide. if one wishes to follow this process by monitoring the release of 14co2, at which positions in the glucose molecule would the 14c label need to be incorporated?
Answers: 2
Demuestre que tan buenas son las aproximaciones de 1/3 km/s y 1/5 mi/s para referirse a la rapidez d...
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