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Construct a rough plot of pH versus volume of added base for the titration of 50 mL of 0.050 M HCN with 0.075 M NaOH. Ka = 4.0*10^-10 for HCN (a) What is the pH before any NaOH is added? pH = 5.36 (b) What volume of base, in milliliters, is required to reach the equivalence point? V= 33.33mL What is the pH at the equivalence point? pH=
A neon is made of glass tubing whose inside diameter is 2.5 cm and whose length is 5.5 m. If the sign contains neon at a pressure of 1.73 torr at 31 degrees celcius
Explain why alcohols such as ethanol and propanol are soluble in water, butanol is moderately soluble and pentanol is slightly soluble
the inital temperature of the water was 25.2c at equilbrium the temperature of the water and metal was 30.4 degree c.
determine the number of stereoisomers for the following. Sketch these isomers and identify pairs of enantiomers ABA,
Determine the change in Ssys for the process if the specific heat capacity for ethanol = 2.42 J/g K. express your answer in units of J/K
Calculate the freezing and boiling point of the following solutions, assuming complete dissociation. a. 12.0 g FeCl3 in 162 g water
how many moles of gas are there in a 45.0 l container at 25.0 degress celcius and 500.0 mm hg
If the reaction of 0.650 g of rhodium(III) sulfate with excess sodium hydroxide produces 0.320 g of rhodium(III) hydroxide, what is the percent yield
The heat of vaporization of liquid water is 40.67 kJ/mol, and the molar heat capacity is 75.3 J/ (K x mol) for the liquid and 33.6 J/ (K x mol) for the vapor.
When a He atom absorbs a photon to form the excited configuration 1s^1 2s^1 (here called He*) a weak bond forms with another He to form the diatomic molecule HeHe*. Construct a molecular orbital description of the bonding in this species.
Write a balanced equations for the formation of the following compounds from their elements
what pressure would be required for helium at 25C to have the same density as carbon dioxide at 25C and 1.00 atm?
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