Given that water has a molar enthalpy of vaporization of 40.79 kJ / mol, how many grams of water could be vaporized by 0.545 kJ? How do you calculate the heat released in a chemical reaction? Using the following data, determine the standard reaction enthalpy of CH_4(g) + 2O_2(g)\to...
The elements phosphorus and oxygen react to give tetraphosphorus hexaoxide according to the balanced equation: P4 + 3O2 = P4O6 Suppose you have 0.7075 moles of P4 (a) How many moles of O2 are needed for complete reaction? (b) What mass of P4O6, in gra ...
a突然发现,我们就像两个没有交集的圆,很像,但永远不可能在一起 Discovered suddenly that, we look like two occurring together the circle, looks like very much, but never possibly in together[translate] aThere are multiple root elements. Line 1, position 60. 有多重根元素。 线1,位置60。[transla...
It is thought that some clay on the periphery of continental crusts metamorphosed into shale. During this process, hydrothermal solutions containing the necessary aluminium, as well as such trace elements as chromium or vanadium, were deposited in the shale. This shale became layered through the mar...
The calorimetric measurements of the heat of dissolution of anhydrous and hydrated compounds provide the enthalpy of formation to form elements. The enthalpies of hydration are obtained by measuring the difference in the enthalpy of the solution in HF acid at approximately 70°C, of a hydrated and...
•S - radius=219 pm •Fe 2+ radius=70 pm Problem: •Ameltorwatersolutionthatamineral precipitatesfromcontainsALLnatural elements •Question:Doanyofthese‘other’ionsget intoaparticularmineral? Chemical‘fingerprints’ofminerals •Major,minor,andtraceconstituentsina mineral •Stableisotopicsignature...
Silica, which is adsorbed on the scale lattice as a binder, also separates alumina from the already formed scale lattice. In this way, the fouling lattice is gradually destroyed and eliminated due to the detachment of Ca and Mg elements and negatively charged SiO2 (-) and Al2O3 (-)....
Question: How heavy is osmium? Chemical Elements: Chemical elements are arranged on the periodic table based on the atomic number. They are also classified by chemical properties and electron arrangement. The four groups of the periodic table include main group elements, transition metals, lanthanides...
5. What two elements do most polymers contain and what bonds do they have?. a) Discuss how lattice imperfections can result in metallic plastic deformation. b) Consider a metal single crystal oriented such that angle normal to the slip plane and ...
Use MATLAB to determine how many elements are in the array Y and What is the value of the reheat factor in a multi-stage turbine? Given the following set of (x,y) data: and assuming that y=a_0+a_1x write a MATLAB code to: (a) Determine the va...