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From a calibration curve found a concentration of 11.84 micrograms per mL with a standard deviation of 1.79. multiplied the concentration by 100 to determine the micrograms in the 100mL solution. Converted the micrograms to grams by dividing by 1x10e6. The same thing to the standard deviation?
Draw a rough sketch of the energy profile for each of the following cases. a. E = +10 kJ/mol, Ea = 25 kJ/mol b. E = -10 kJ/mol, Ea = 50 kJ/mol c.
an Erienmeyer flask is closed by a stopper connected to a glass tube. the glass tube is sealed by a drop of mercury. if we move the whole appareatus in the diagram from a room with a temp. of of 26 degrees celcius to an outdoor yard with a temp of..
how many grams of sucrose (C12H22O11) must be dissolved in 200 g water to make a solution in which the mole fraction of sucrose is 0.1? answer in units of g.
Reaction with a secondary base (piperidine) as well as with diethyl malonate, and that this reaction proceeds as if it was done with a tertiary base
Hydrogen sulfide decomposes according to the following reaction, for which Kc = 9.30 10-8 at 700°C. 2 H2S(g) 2 H2(g) + S2(g) If 0.33 mol H2S is placed in a 4.7 L container
Suppose that 0.650mol of methane, CH4(g), is reacted with 0.800mol of fluorine, F2(g), forming CF4(g) and HF(g) as sole products. Assuming that the reaction occurs at constant pressure, how much heat is released
how much heat is required to raise the temperature of 789 g of acetic acid from 25 degrees celsius to 82.7 degrees celsius? Specific heat = 2.05 J/gdegreeCelsius
what refinements had to be made in daltons atomic theory to account for gay-lussacs results on the combining volume of
Calculate the pH of a buffer formed by mixing 85 ml of 0.13 M lactic acid (HL) with 95 ml of 0.15 M NaL (sodium lactate).
By how many volts will the potential of an ideal Mg+2 ion selective electrode change if the electrode is removed from a 1 x 10-4 M MgCl2 solution and replaced with a 1 x 10-2 M MgCl2 solution
Forms more of one enantiomer than another depending on the temperature of the reaction d. Forms more of one enantiomer than another because of steric reasons around the carbonyl
A certain reaction has an activation energy of 57.42 kJ/mol. At what kelvin temperature will the reaction proceed 3.50 times faster than it did at 353 K
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