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The thermal decomposition of phosphine (PH3) into phosphorus and molecular hydrogen is a 1st order reaction 4PH3(g)--- P4(g)+6 H2(g) The half life of the reaction is 35.0 s at 680C calculate a) the first order rate constant for the reaction and b)the time required for 95% of the phosphate to decompose
List these compounds in order of increasing molar solubility in water show your calculations.
The number of different constitutional isomers that can be drawn for C2H4Br2 is equal to
Calculate the change in pH when 7.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq).
explain how to find distinct terminal alkynes.
A fifty litres container of stainless steel was charged with 5.00 atm of H2(hydrogen gas) and 6.00 atm of O2(oxygen gas). A spark ignited this mixture (hydrogen gas & oxygen gas)
Write a net ionic equation for the reaction that occurs when aqueous solutions of acetic acid and potassium hydroxide are combined.
If ΔH = -60.0kJ and ΔS = -0.200kJ/K , the reaction is spontaneous below a certain temperature. Calculate that temperature. Express your answer numerically in kelvins.
What volume of CO2 would be produced each day? Suppose the gas mixture produced by the decomposition is trapped in a container at 17 degree celcius
At what temperature will a gas be at if you allow it to expand from an original 456 mL at 65 celcius to 3.4 L?
Propose a structure for an amine of formula C4H9N, which liberates a gas when treated with NaNO2 and HCl. The 13C NMR spectrum is as follows
If 5.50 of the unknown compound contained 0.183 moles of carbon and 0.367 mol of H of , how many moles of oxygen, , were in the sample?
The silicon in the plate is a mixture of naturally occurring isotopes. One of the those isotopes is silicon-30, which has an atomic mass of 29.97376 amu and a percent natural abundance of 3.10%.
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