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Consider HA- the intermediate form of a diprotic acid. Ka for this species is 10-4 and Kb is 10-8. Nonetheless, the Ka and Kb reactions proceed to nearly the same extent when NaHA is dissolved in water.
One observation well is located 45 meters away and has a water surface that is 44.35 meters above the bottom of the aquifer. A second observation well is located 85 meters away and has a drawdown of 0.25 meters. What is the coefficient of permeabi..
A 40-foot "fiberglass" boat hull weighs 2000 kg. Sixty percent of that is a fully cured crosslinked polyester resin (the remainder is the glass reinforcing fibers
If 69.5 kJ of heat is applied to a 1040. g block of metal, the temperature of the metal increases by 11.4°C. Calculate the specific heat capacity of the metal in J/g°C.
At -13.0 °C (a common temperature for household freezers), what is the maximum mass of sucrose (C12H22O11) you can add to 3.00 kg of pure water and still have the solution freeze?
Give the formula unite that forms from ionic compounds between: 1 Potassium and Nitrogen 2 Aluminum and Phosphorus 3 Aluminum and Phosphorus
Calculate the pH of a buffer formed by mixing 60. mL of 0.13 M lactic acid with 86 mL of 0.26 M sodium lactate.
When atomic absorption spectrophotometer had been allowed to adequately equilibrate, a blank determination of absorbance gave the following results.
The density of water decreases from 1.000g/mL at 3.98°C to 0.9170g/mL as ice at 0°C. By what volume (in mL) would a 2.632 liter flexible plastic bottle increase.
why doen't the mass number decrease? (because there is one less neutron). But the atomic number increases due. What happens to the electrons?
A gas occupying a volume of 395 mL at a pressure of 0.970 atm is allowed to expand at constant temperature until its pressure reaches 0.541 atm. What is its final volume?
Deal gases can be defined in terms of microscopic assumptions, assumptions about the values of macroscopic measurements or an equation of state
A volume of 725 mL of a gas is collected at 105 degrees C and 746 torr. The gas sample weighs 1.92 grams. what is the gas.
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