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Question- A certain weak base has a Kb of 8.90 x 10^-7. What concentration of this base will produce a pH of 10.32?
I want you to explain the chemistry in this problem
Do you think you could distinguish between 3-methylcyclohexene and methylenecyclohexane by their GC retention times?
If a 0.500g sample of a potassium nitrate mixture is decomposed by heating, what is the milliliter volume of oxygen gas released at STP
Write the overall cell reaction for the galvanic cell given below- Pt(s)/H+(aq)//Cl2(g)/Cl-(aq)/Pt(s)
If the extracellular [Na+] is 0.10 M and the solubility in water of sodium urate is 0.072 g/100 mL, what is the minimum urate ion concentration (abbreviated [Ur - ]) that will cause a deposit of sodium urate
the temperature of the resulting solution rises from 25.00°C to 37.90°C. If the specific heat of the solution is 4.18 J/(g · °C), calculate ?H for the reaction, as written.
Calculate the pH at the equivalence point for the titration of 0.210M methylamine(CH3NH2) with 0.210M HCl. The Kb of methylamine is 5.0*10^-4
calcualte the concentration of lycopene given that the molar absorption of lycopene at 471 nm is 1.85 x 104. b.
joe is making a 0.0053 molar sulfuric acid h2so4 solution in the lab. how many grams of pure sulfuric acid is needed to
Consider the compounds with the generic formulas listed below and their corresponding molar solubilities in pure water.
the label of an aerosol spray can contains a warning that the can should not be heated to over 130 degrees f because of
q1. calculate the number of moles of ammonia absorbed by a boric acid solution if 3.25 ml of 0.0025 m h2so4 were needed
A gas-filled balloon having a volume of 2.50 L at 1.2 bar and 25°C is allowed to rise to the stratosphere (about 30 km above the surface of Earth), where the temperature and pressure are -23°C and 3.00 10-3 atm, respectively. Calculate the final v..
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