Determine the percent yield of this reaction, showing all steps of your calculation. (3 points) heoretical yield of H2 gas: (1.156 x 10^-3 moles)(1 mole H2/ 1 mole Mg) = 1.156 x 10^-3 moles Theoretical mass: (1.156 x 10^-3 moles)(2.02 g/mole) = 2.335 x 10^-3 g Using ideal gas law: P = (1.1 atm)(760 torr / 1 atm) - 19.8 torr = 816.2 torr V = 0.026 L T = 295 K Solve for n: n = PV/(RT) n = (816.2 torr)(0.026
How many moles of Al2O3 are produced by the reaction 200. g Al? 4Al + 302 → 2Al2O3 3.70 mole 12. How many moles Al are required to produce 300. g Al2O3? 4Al + 302 → 2Al2O3 5.88 mole 13. 100. g Al reacts with excess O2 to produce 150. g Al2O3 according to Calculate the theoretical and percentage yield.
What size metal duct should be used to deliver 270 CFM with a pressure drop of 0.15 in wc if the total equivalent length is 80 ft? (57.10) 8 in 5. What is the velocity of 500 CFM of air moving through a 10 in duct? (57.10) 900 fpm. 6.
Next expand the IEEE 802.11 wireless LAN management frame section. Expand both the fixed parameters and tagged parameters subsections. Provide the following information in the lab report document. Afterwards, shrink the header by clicking the – sign to its left. Beacon Interval: 0.102400 seconds SSID: linksys Supported Rates: 1(B), 2(B), 5.5(B), 11(B), 18, 24, 36, 54 [Mbit/sec] 5.
The following mistakes were made when carrying out the experiment. What effect does each have on the calculated molar mass? Be specific. For example, too large because… Only part of the pipet was immersed in the boiling water, so the temperature in part of the pipet was less than that of the water bath. If the temperature was less than the water bath in some places because only part of the pipet was immersed in the boiling water, the molar mass calculated would become lower.
The melting point of paradichlorobenzine is approximately 53.5 °C but my graph illustrates it at 51°C. ( (Note this is due to the different atmospheric pressures and concentration of paradichlorobenzine which causes some minor variation.) 5. I can conclude that both the melting and boiling points of a pure substance are the (almost) the same. This is due to the fact that pure substances (unlike mixtures) have definite composition.
Ideal Gas Law Lab Notes from experiments. : *Could raise it to 398 degrees . : Volume (6.0) Pressure (5.47). *Lowered temp back to 300 degrees. : V (6.0) Pressure ((4.18) *Raised back up to 398.: V (6.0) Pressure (5.51) -Temp.
One of the increasingly popular types of gasification is Plasma Gasification. Plasma gasification technology has been shown to be the most effective and environmentally friendly method for solid waste treatment and energy utilisation. It is a non-incineration thermal process that uses extremely high temperatures in a partial oxygen environment to decompose completely the input waste material into very simple molecules. The products of the process are a fuel or gas known as synthesis gas and an inert vitreous material known as slag (Stehlı´k, 2009). Plasma gasification uses an external heat source to gasify the waste, resulting in very little combustion.
4 Discussion Discuss the implications of (a) a low oxygen charging pressure (below 30 atm. ), (b) excessive fuel sample, and (c) if the bomb was pressurized with air at 30 atm. (a) At a lower oxygen charging pressure, there would be smaller oxygen quantities during combustion. This would result in a slower rate of combustion for the fuel due to lesser oxygen molecules at a lower pressure. A slower rate of combustion would in turn lead to inefficient burning and hence the gross calorific value would differ.
The temporal pattern recognition tests assess the individual’s ability to perceive the subtle variations in the duration of the acoustic stimuli (Musiek, Baran and Pinheiro, 1990). The duration pattern test was used to investigate the auditory temporal pattern recognition ability. 2.2.1 Duration Pattern Test (DPT) The DPT test was administered using the procedure suggested by Pinhario and Museik (1985). A 1000 Hz pure tone was generated using the audacity software (1.3.14-beta; Ash, Chinen, Crook, Dannenberg and Johnson, 1991) with two different durations [a short tone of 250 ms (S) and a long tone of 500 ms (L)] at the sampling frequency of 44100 Hz (Kumar and Sangamanatha, 2011). The tones were patterned in different combinations in such a way that one tone is presented twice and the other tone is presented once.