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Explain the possible effect of your results of the following experimetnal error or variations (a) the reaction flask you used in the kinetic runs was rinsed with water and not dried
The element antimony has an atomic weight of 121.757 amu and only two naturally occuring isotopes. one isotope has an abundance of 57.3 % and an isotopic mass of 120.904 amu based on these data what is the mass of the other isotope.
The freezing temperature of ethanol is -114.0 oC, the density is 0.789 g/cm3, and Kf is 1.99oC/m. Calculate the new freezing point when 0.100 L of methanol
exists for each of these chemical reaction types above and why might it be of importance to healthcare professionals?
a volume of 95.0ml of h2o is initially at room temperature 22.0 c. a chilled steel rod at 2.00 c.is placed in the
Calculate the molar concentration of HCl in a solution that has a specific gravity 1.185 and is 36.5% (w/w). Prepare from this bottle 1 L of 0.1 HCl solution.
What is the pH of a solution made by mixing 30.00 mL of 0.10 M acetic acid with 30.00 mL of 0.10 M KOH? Assume that the volumes of the solutions are additive. Ka = 1.8 × 10-5 for CH3CO2H.
An enzyme-catalyzed reaction produces a product that has a maximum absorbance at 412 nm. The extinction coefficient is 4000 M-1 cm-1. A 10/1 dilution of the enzyme is made and 20 mL of the dilution are put into a cuvette with 80 mL of water and 1...
the temperature of a 2.0 liter sample of heluim gas at STP is increased to 27 celsius and the pressure is decreased to 80.0 kPa. what is the new volume of the helium sample.
what are the steps to calculate the followingnbspnbsphow many grams of barium sulfate are produced if 25.34 ml of 0.113
Quinine (C20H24N2O2) is the most important alkaloid derived from cinchona bark. It is used as an antimalarial drug.
What mass of CCl2F2 substance must evaporate in order to freeze 135 g of water initially at 15 degrees celsius? (The heat of fusion of water is 334 J/g the specific heat of water is 4.18 J/gK .)
Find the intrinsic conductivity for germanium. (Assuming ni = 2.5x 1019/m3 at room temperature.)
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