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consider the titration of 30ml of 0.05M NH3 WITH 0.025M HCL., Calculate the Ph after the following volumes of titrant have been added (a)0ml (b)20ml (c)59ml (d)60ml (e)61ml (f)65ml. will give all the points with some bonus points for showing all the steps
which anions generally form precipitates? what are exceptions? which anions generally do not form precipitates? what
An unknown protein sample gave an absorbance of 0.867 ( corresponding to the average of three replicate analyses of the unknown sample). Calculate the mass (micrograms) of protein in the unknown. Calculate the absolute uncertainty for the answer.
The bases below are ranked lowest to highest. Explain the ranking order based on molecular characteristics.HCO2-Li+, HO-Li+, CH3CH2O-Li+.
You identified your unknown compound. How you could use this compound to determine the Kf value for ethyl alcohol? Explain what you would do experimentally.
a student heated a .546 gram pure chemical in an atmosphere of oxygen gas until it had completely reacted the final chrominum compound weighed .798 grams what is the empirical formula of this compound?
Rate Constant with Temperature Changes, Rearrangement of methyl isonitrile to acetonitrile has activation energy of 25.0 kJ/mol and a rate constant of 8.1*10^-4s-1 @ 80 Celsius.
What is the frequency of a photon emitted from a hydrogen atom when an electron makes a transition
determine how many micrograms of herbicide are present in 10 lb of soil if the herbicide level in the soil in a corn
A zero-order reaction has a constant rate of 1.50×10?4. If after 55.0 seconds the concentration has dropped to 4.50×10?2, what was the initial concentration?
aluminum may be formed by the passage of 60,714 C through an electrolytic cell that contains a molten aluminum salt.
Which of the following would be expected to have the lowest freezing temperature?
Outline a mechanism for the phtolysis of methyl butyrate assuming the reaction follows a patter similar to 2-pentanone.
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