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A 12.4 g sample of an aqueous solution of hydroiodic acid contains an unknown amount of the acid.
If 19.0 mL of 0.122 M barium hydroxide are required to neutralize the hydroiodic acid, what is the percent by mass of hydroiodic acid in the mixture?
Problem- CH3CH2PH2 can be synthesized by an SN2 reaction. Draw the structures of the alkyl chloride and nucleophile that will give this compound in highest yield.
A hydrogen atom initially in the n=7 quantum state emits a photon having a wavelength of 2.16495E-6 m. What is the quantum number of the final state of the atom?
What is the skateboard's velocity relative to the sidewalk at this instant? Be sure to include the correct algebraic sign with your answer.
what type of solid phase would you use and what type of solvent would you select as an eluting solvent, to detect the biphenyl impurity?
Explain what is the concentration Molarity of a base solution containing .235g NaOH in 500.0 ml of total solution
What is the molality of 150.0 g of NH3 dissolved in a solution that is 1.25 Liters? The density of the solution is 1.45 g/mL.
What will be the volume of the gas if the temperature is cooled to - 30.5 degrees celsius and the pressure is held constant?
A compound forms between phosphorous and nitrogen. if 6.85 grams of phosphorous completely reacts with 5.15 grams of nitrogen, what is its empirical formula. show work in a table form.
a 5.00 g sample of aluminum pellets specific heat capacity 0.89 jc g and a 10.00 g sample of iron pellets specific
Ammonia can be oxidized in oxygen as shown: 4 NH3(g) + 3 O2(g) 2 N2(g) + 6 H2O(g). When 0.791 mol of NH3 and 0.814 mol of O2 are placed in a 1.00 L container at a certain temperature,
What concentration of aqueous NH3 is necessary to just start precipitation of Mn(OH)2 from a 0.020 M MnSO4? Kb for ammonia 1.8 x 10^-5, Ksp for Mn(OH)2 4.6 x 10^-16.
The specific heat cacpacity of solid copper metal is 0.385/Jg-K. How many joules of heat are needed to raise the temperature of a 1.55-kg block of copper from 33.0 0C to 77.5 0C
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