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Use H2C4H4O4 to determine the concentration of NaOH, Which solution will you put in the buret and which solution will you titrate?
Hydrogen sulfide, H2S, is a toxic gas responsible for the odor of rotten eggs. The solubility of H 2 S (g) in water at STP is 0.195M. Explain what is the Henry's-law constant of H2S at 0°C
Compute the volume (in mL) of a 0.320 M KOH solution that must be added to 4.500 g of HEPES MW=238.306 g/mol, pKa = 7.56 to give a pH of 7.64.
A saturated solution of an unknown solid reacted with AgNO3 to give a pale yellow precipitate and also reacted with Pb(NO3)2 to give a white precipitate.
Describe an experiment using only hot and cold water that would enable you to verify that the heat capacity of your coffee-cup calorimeter is about 1.0x 10 1J/degrees C. Be specific
Discuss the differences observed in the IR and NMR spectra of 3-nitrophthalic acid and luminal that are consistent with reduction of the nitro function to an amino group
Suppose an adult is encased in a thermally insulating barrier so that all the heat evolved by metabolism of foodstuffs is retained by the body. What temperature does her body reach after 3.0 hours
Calculate the amount of copper sulfate in solution formed by the reaction of.500g of elemental copper with excess silver sulfate.
Problem- An unknown sample of phosphoric acid was determined by the method used in this experiment. the sodium hydroxide was standardized by titration of 0.133 g of oxalic acid dihydrated with 26.37 ml of sodium hydroxide. 10.00 ml of the unknown ..
Determine the total number of valence electrons in each of the following: a) SBr2; b)NBr3; c) CH3OH; d) NH4^+.
Write the isotope notation for the element that has 77 neutrons, 54 electrons and has a net charge of 2-.
A calorimeter containing 200.0 mL of water was calibrated by carrying out a reaction which released 15.6 kJ of heat. If the temperature rose 3.25 degrees celcius then the heat capacity of the calorimeter inclusing the water is?
At 700 Kelvin the Kp=54 for H2 + I2 > 2HI and Kp=1.04E-4 for N2 + 3H2 > 2NH3. Determine the Kp for reaction 2NH3 + 3I2 > 6HI + N2 at 700 Kelvin.
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