解析 50Suppose without loss of generality that we have a 100kg orange. Then 80kg is water, and 20kg is other content. Now 75% of 80 is 60 so we have 80-60=20kg of water left. Then the percentage of water in the remaining orange is 20÷(20+20)*100=50%. ...
What is the percent mass/volume (%m/v) of a solution that is made by putting 25.0 g of NaCl in 275 mL of water? (a) 0.0909 %w/v (b) 9.09 %w/v (c) 8.33 %w/v (d) 10.9 %w/v What is the percent by mass of a solution made by dissolvi...
Under these conditions, the tensile strain at break, eb, is generally no more than a few percent. Based on studies of crack propagation in narrow molar mass fractions of linear PE, Lu et al. (1996) concluded that ‘PE with Mw <18 kg mol-1 had zero strength’ and that all fractions ...
What is the mole fraction of a solution made by dissolving 8.54 grams of KI in 0.400 L of water? A solution is prepared by dissolving 49.3 grams of KBr in enough water to form 473 mL of solution. Calculate the mass percent of KBr in the solu...
Since even small shifts in the surface mass balance (SMB) across Antarctic ice sheets can redistribute huge masses of water between the cryosphere, ocean, and atmosphere, a clear understanding of how its SMB has responded to past climate change is crucial for calibrating forecast models of the ...
U.N. Dash, D. Satyanarayan, K.N. Panda, S.C. Rath, S.K. Mohanty, "Thermodynamics of silver salicylate in water and water + 10, + 20, and + 40 mass percent of dioxane at different temperatures", Thermochimica Acta, (1979), 30, 1-2, 217-223....
The atmosphere also contains a few percent of N2 and argon. Mineralogic and isotopic evidence and geologic features suggest that the past atmosphere of Mars may have been much denser and warmer, allowing liquid water to flow across the surface in massive floods. The volatiles in the terrestrial...
nearly all theH2originally present in the earth's atmosphere has been lost to space. In the earth's crust and oceans, hydrogen is found in water, petroleum, proteins, carbohydrates and other compounds and it is the ninth most abundant element on a mass basis. Hydrogen has three isotopes :...
Unmetabolized TPN171 was detected as a major component in human plasma, urine, and feces. In addition, 22 metabolites were identified. The radioactive distribution of TPN171 and its metabolites in human plasma, urine, and feces and the percent of the dose in urine and feces are shown in Ta...
Given the large simplification, the agreement of the methods when the ion-induced dipole potential is included is quite remarkable, having errors of only a couple percent for most of the cases studied for a fairly large range of sizes. Figure 5 (a) Comparison of calculated CCS between TM ...