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What are advantages of Attenuated Total Reflectance (ATR) sampling in IR over Beam Through Sample sampling?
What region of an IR Spectrum (give a range in wavenumbers) is most useful for distinguising between isomers that contain the same functional groups?
Are the characteristic vibrations for functional groups such as carbony groups (aldehydes,ketones,etc) and alcohols (RO-H) stretching vibrations or bending vibrations?
When 1.33 mol of HCl reacts with excess MnO2, how many moles of Cl2 form?
In the standardization of NaOH, 38.76 mL of NaOH was required for 0.8169 g potassium acid phthalate. Estimate the accuracy we should expect in the molarity of the NaOH solution assuming the weighing error is ±0.1 mg
A buffer is prepared by adding 150 mL of 1.0 M NaOH to 250 mL of 1.0 M NaH2PO4. How many moles of HCl must be added to this buffer solution to change the pH by 0.18 units
If the work function of a metal is 4.51 eV, what is the maximum wavelength of light that can be used to observe the photoelectric effect
The buffer solution consists of 0.1 mol/L of sodium acetate and 1.5 mol/L of acetic acid. The Ka of acetic acid is 1.8x10^-5. What's the pH of this buffer
You have a sample that consists of 8.2 (+ or -)o.1mL of aqueous 239Pu solution. You measure two 10mL aliquots by liquid scintillation counting and get 3211.4 cpm and 3315.2 cpm, respectively.
do only ionic compounds dissolve with an evolution or absorption of heat...what about molecular compounds like sucrose, glucose, aspartic acid
Barium, Ba, is used in X-Ray applications. The barium nucleus has a charge of +56. A barium atom has lost two outer electrons and has become a positively charged ion. How many electrons does this ion have
The amount (N = grams) of radioactive material present in a sample as a function of time is given by the following equation, where No is the amount present at t = 0. : N (t) = No e^-kt At Great Basin College, we have a specimen of a highly radioac..
They will dilute the 0.5 M solution to obtain 100 mL of 0.15M solution and dilute the 0.5m solution to obtain 10,000 ppm per mass. What is the molarity, molality, mass fraction and mole fraction
What is the strongest type of intermolecular force in the following compounds? dipole-dipole, london desperison or hydrogen bounding
sample of an oxide of tin was heated in the ari and 2.842 grams of tin (IV) oxide was obtained. What was the formula for the original oxide of tin?
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