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Calculate the pH in the solution formed by adding 10.0 mL of 0.100 M HCl to 20.0 mL of 0.100 M NH3
detailed procedure of determining the enthalpy of reaction between citric acid (H3Cit) and sodium hydroxide (NaOH). Calculate what volume of each .50M solution should be mixed to give a total volume of 50.0mL and the reactants in the correct stoic..
What are the equilibrium concentrations of the dissolved ions in a saturated solution of Al(OH)3 at 25 degrees celcius? (Ksp is (2x10^-32))
the absolute entropies of the solid and liquid metal are 24.0 and 66.2 J/K.mol, respectively, at the melting temperature. Calculate the melting point of the metal
what is the concentration ratio of the free (and potentially toxic) Pb^2+(aq) in the blood to the much less toxic Pb^2+ -EDTA complex?
When 4.21 g of a nonelectrolyte solute is dissolved in 165 mL of water at 26 °C, the resulting solution exerts an osmotic pressure of 909 torr
canned tuna was analyzed by the Kjeldahl method; 22.66ml of .1224M HCl were required to titrate the liberated ammonia. Calculate the percentage of nitrogen in the sample.
The printed label on a bottle of commercial vinegar states that the acetic acid concentration is 5%. (a) If the manufacturer had reported two significant figures int he concentration, what would the percentage range be so that all values would rou..
Calculate the volumetric size of a water molecule for water in the form of ICE just below the melting point. Give answer in angstroms
When a 7.00-g sample of KCN is dissolved in water in a calorimeter that has a total heat capacity of 2.734 kJ·K-1, the temperature decreases by 0.460 K.
when burned in oxygen, yielded a mixture of CO2 and SO2 in which the number of moles of CO2 was one-half the number of moles of the SO2. How many grams of C contained in the mixture?
Assume equilibrium with the calcium carbonate in the sediment and calculate the concentration of calcium ion (in mg/L -1) in the water (25C).
Aluminum metal dissolved in hydrochloric acid as follows: 2Al(s) + 6HCl(aq) → 2AlCl3(aq) + 3H2(g)
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