The molar mass of NaCl is given as {eq}\rm M = 58.5 g/mol {/eq} To make a 500 mL (0.500 L) 0.5 M solution, suppose we add {eq}\rm m{/eq} grams of... See full answer below.Become a member and unlock al...
Řekl jsem, že molalita NaCl je 2. QED Because the molality would be half as much. Protože molalita by byla poloviční - proč? QED And actually, I'll put a little contest on this video, if you all can think of good ways to remember the difference between molality...
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Calculate the mass, in grams, of 3.9 moles of CaCl2. What is the mass of 0.425 moles of CaCl_2? The molar mass of CaCl_2 is 110.98 g/mol. Calculate the mass percent of Ca in CaCl2 and the mass percent of CaCl2 2H2O. What is the molar mass of CaCl2? Calculate the number of mo...
The electrical conductance of 0.025 mol NaCl solution was measured at0.25-3.75 GPa and 20-370℃. As shown by the results, the conductance increases with temper-ature, and there is a liner relation between the reciprocal of temperature and the logarithm ofthe conductance but their slopes are dif...
salt (sodium chloride)NaCl sugar (sucrose)C₁₂H₂₂O₁₁ vinegar (acetic acid solution)CH₃COOH The molar mass of elements in grams per mole is numerically equal to their atomic mass in unified atomic mass units (u) or daltons (Da). The molar mass of compounds i...
One mole of carbon is the amount of the substance that has the same number of atoms as in 12 grams of carbon-12, or more specifically 6×10²³ atoms. A concentration of a solution can be measured in different ways, for example by measuring the ratio between the mass...
What is the mole fraction of solute and the molal concentration for an aqueous solution that is {eq}10.0 \ \% \ NaOH {/eq} by mass? What is the {eq}m {/eq}? Molality: Molality is a physical quantity that illustrates the co...
表 1TFP1 分子翼和均方根旋转半径liibleI.MakrMassantiAverageMeanSquareRadiusforTFPlMwxIO6Mnx|()b2Mw/Mn(Da)(Da)(nm)TFPl5,832士0.15.8O5O.t191,309L00514、碘-碘化钾反应银耳多糖 TFP1 溶液与碘试剂(含 0.02%12 的 0.2%KI 溶液)混匀, 测定 300-700nm 范围内的吸收光谱, 若在565nm处有最大...
mmHg760mmHg41115.38 10mol L8.314kPa L mol1K-1(27325)K35.0g5.3810-4mol L-11L7.A0.86percent by mass solution of NaCl is called“physiologicals alinebecause its osmotic pressure is equal to that of the solution in blood cell. Calculate theosmotic pressure of this solution at normal body ...