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A gas of unknown molecular mass was allowed to effuse through a small opening under constant-pressure conditions. It required 62s for 1.0L of the gas to effuse. under identical conditions it required 28s for 1.0L of O2 to effuse. Calculate the molar mass of the unknown gas.
A plastic cup is heated past its melting point,then remolded and cooled. Based on thisinformation, we can say this polymer
The [OH-] of a solution can be determined from the pOH using the equation: [OH-] = 10 ^ -pOH where [OH-] = hydroxide ion concentration. If [OH-] = 6.0*10^-3 M then pOH=?
Sodium reacts with chlorine gas according to the reaction: What volume of gas, measured at 686 and 32 , is required to form 23 of.
What fraction of the original reactant concentration will remain after 2.0 hours?
In a voltaic cell containing two compartments one with a strip of iron Fe and with an Fe3+ solution as well as one with a strip of Aluminum, Al3+ in contact with an Al3 solution, the
Determine the moles of H2O lost. E. Write the empirical formula for hydrated alum, based on your experiment.
calculate the volume that a 0.323 -mol sample of a gas will occupy at 265k and a pressure of 0.900atm
The compound produced when 1-hexene is reacted with sulfuric acid and water as the solvent is 2-hexanol. what kind of reaction would this be considered? a) 1,4 addition b)proceeds via a carbanion
What mass of sucrose should be combined with 455 g of water to make a solution with an osmotic pressure of 8.75 atm at 320 K?
silver metal may be precipitated from a solution of silver nitrate by placing a copper strip into the solution. what
A certain acid HX is dissolved in water to make a 0.10M solution. At equilibrium, the concentration of X^- ions is 1.0 x 10^-5 M. The Pka of HX is approximately?
Imagine you preformed Sn2 reaction to form N-methyl benzyl ammonium bromide. The only impurity present in N-methyl benzyl ammonium bromide after the reaction is the benzyl bromide starting material
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