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After 3.2 hours 1/64 of the preliminary amount of a particular radioactive nuclide remains unchanged. Explain what is the half life of the nuclide?
whether these collisions are elastic or inelastic makes no difference as long as the walls are at the same temperature as the gas. Explain. Explain the kinetic molecular theory of gases
How many grams of copper are in the necklace? 3. If 18-karat gold has a density of 15.5 , what is the volume in cubic centimeters?
What is the value of K_sp for tin(II) sulfide, given that its solubility
A mixture of helium and neon gases at 237 K contains three times the number of helium atoms as neon atoms. The concentration (n/V) of the mixture is found to be 0.150 mol/L. Assuming ideal behavior, what is the partial pressure of helium
what are the general requirements must be met before two compounds could be isomers?
What is the balanced equation for the Magtrieve Oxidation of 4-Cholorbenzyl alcohol to 4-chlorobenzaldehyde? If 1 mmol of 4-chlorobenzyl alcohol and 700 mg of Magtrieve are used
a careful search of various old solutions sitting around inyour laboratory reveals a 2.870 l solution containing
if the annual production of acetyl salicylic acid in the u.s.a. were converted to 5-grain aspirin tablets approximately
In dilute solution the carbonyl absorption band of II occurs at 1702/cm. Explain this observation. stretching vibration in carboxylic acids is heavily mixed
The temp of both solutions before mixing was 23.0 degree celsius, and its rises to 34.8 degree celsius after the acid-base reaction. What is the enthalpy change for the reaction per mole of NaOH
How many seconds are required to produce 4.94 mg of chromium metal from an acidic solution of potassium dichromate, using a current of 0.234 A?
An unknown carbohydrate compound has the empirical formula CH2O. A solution consisting of 0.515 g of the carbohydrate dissolved in 1.717 g of acetic acid freezes at 8.8°C
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