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Some compounds sublime in the capillary and some decompose before melting. How do you determine melting point of these compounds?
Write the electron configuration and shell diagram for each of the following elements: a) magnesium b) arsenic c) iodine
What is the sum of all coefficients in the complete and balanced net equation for the reaction occurring when chlorine gas is bubbled through aqueous sodium hydroxide to form aqueous sodium hypochlorite (NaOCl) and sodium chloride
Draw the structure of each product obtained when the given compound is treated with the reagent specified below: a. CH3C(=O)CH2CH2C(=O)OCH3 (1,4-dioxacyclohexane compund) + HBR (reagent)
What is the pressure in the cell? The volume is reduced until the cell is essentially full of liquid n-butane with only a few bubbles of n-butane gas remaining. What is the pressure?
for a particular redox reaction MnO2 is oxidized to MnO4- and Ag+ is reduced to Ag write a balanced equation
When the compound spontaneously decomposes, the piston moves up, the temperature of the water reaches a maximum of 29.52°C, and then it gradually decreases as the water loses heat to the surrounding air.
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25celsius, the vapor pressure of the pure benzene is 100.84 torr. what is the vapor pressure of a solution made from dissolving 15.4g of biphenyl in 34.2 o..
the piton of an internal combustion engine compresses 671 ml of gas. the final pressure is 15 times greater that the
The blood buffering system is aided by the enzyme carbonic anhydrase, which interconverts carbon dioxide and water to bicarbonate and H
A 3.664 g sample of a monoprotic acid was dissolved in water and required 20.27 mL of a 0.1578 M KOH solution for neutralization. what is the molar mass of the acid
What effect would each of the following erros have on the determined concentration of the unknown acid? (would the calculated value be too high, too low, or unchanged?) explain
Show your calculations and determine the half-life of Tc-99 (in hours). (b)The delivery of a sample of Tc-99 from the reactor to the nuclear medicine lab of the hospital takes 3h.
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