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A flask contains 10.0 mL of HCl and a few drops of phenolphthalein indicator. The buret contains 50.0 mL of 0.230 M NaOH.
1. what volume of NaOH is needed to reach the end point of the titration?
2. what was the initial concentration of HCl?
What is the minimium wavelength of light necessary to ionize an atom of sodium? what is the minimum wavelength of light necessary to ionize a mole of sodium atoms?
a sample of gas at 77 degreees celsius and 1.03 atm occupies a volume of 2.02L. What volume would this gas occupy at 107 degreees celcius and 0.789 atm.
A mixture of CS2(g) and excess O2(g) is placed in a 1.00 L reaction vessel at 100.0 degrees celcius and a pressure of 3.00 atm. A spark causesthe CS2 to ignite
Sodium methoxide CH3ONa is a weaker base than BuLi or nBuLi butyllithium. Recommend an explanation why it is not surprising to find that a weaker base is sufficient to prepare the Horner-Emmons-Wittig reagent.
The "roasting" of 48.7 g of ZnS at constant pressure gives off 220. kJ of heat. Calculate the DH for this reaction. 2ZnS(s) + 3O2(g) ® 2ZnO(s) + 2SO2(g)c
which solution can conduct an electrical current?
What is the yield of ATP when Fructose-1,6-bisphosphate is completely oxidized to CO2 in mammalian cell? Assume that glycolysis, TCA, and oxidative phosphorylation are fully active.
Draw (S)-3-hexanol, then indicate the stereochemistry of the product formed when it is treated with each of the following reagents
If a sample containing 2.11 mL of nitroglycerine (density = 1.592 g/mL) is detonated, how many total moles of gas are produced?
Find the Diffusivity of Ammonia gas(A) in a mixture of nitrogen(B) and hydrogen(C). D(AB)=3.28x10^(-5)m2/s and D(AC)=1.093x10^(-4)m2/s.
Two organic species are produced when 1,1-dimethylethylmagnesium bromide reacts with 1-pentyne (a) Draw the skeletal structure of the new Grignard produced
Calculate the volume of water added to 0.410 L of 0.0340 M sodium hydroxide to obtain a 0.0110 M solution (assume the volumes are additive at these low concentrations).
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