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If the interplanar distance in the crystal is 287 pm, and the angle of maximum reflection is found to be 7.25 °, what is the wavelength of the x-ray beam? (Assume n=1.)
Problem- You have 875 mL of an 0.51 M acetic acid solution. What volume (V) of 2.30 M NaOH solution must you add in order to prepare an acetate buffer of pH = 4.33. (The pKa of acetic acid is 4.76.)
Which of the following pairs of molecules is listed in order of decreasing net dipole moment (from more polar molecule to less polar molecule)? A. CCl4 > SCl4 B. CH2Cl2 > CCl2Br2 C. SF6 > SF4 D. CCl2Br2 > CH2Cl2 Which of the following pairs of mol..
Although the formula of this new chemical is a trade secret, it can be revealed that the formula for Herbigon is X-acetate (XCH3COO, where "X" represents the top-secret cation of the salt).
Comment on the difference between the impure and crystallized sulfanilamide. What does the difference indicate about your ability to perform an effective crystallization
Problem- 15.1 L N2 at 25 °C and 125 kPa and 33.5 L O2 at 25 °C and 125 kPa were transferred to a tank with a volume of 6.75 L. What is the total pressure at 41 °C
The Brass is a substitutional alloy consisting of a solution of copper and zinc. A meticulous sample of red brass consisting of 82.0% Cu and 18.0% Zn by mass has a density of 8780kg/m3. Explain what is the molality of Zn in the solid solution
how many grams of silver chloride can be prepared by the reaction of 100.0 mL of 0.20 Moles silver nitrate with 100.0 mL 0.15 Moles calcium chloride. Calculate the concentrations of each ion remaining in solution after precipitation is complete.
nitrogen reacts with hydrogen to form 1.058mg of the hydride. What is the empirical formula of the nitrogen hydride?
How many Valence electrons does a balanced atom of Sodium have? What is the net charge on each ion?
a student placed 10.5 of glucose in a volumetric flask added enough water to dissolve the glucose by swirling then
The absorption spectrum of the complex ion [Rh(NH3)6]3+ has maximum absorbance at 295 nm. Calculate the crystal field splitting energy (in kJ/mol) for this ion.
ethylamine ch3ch2nh2 is an organic base with pkb 3.367 at 298 k. in an experiment a 40.0 ml sample of 0.105 mol
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