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If a 0.10M solution of HA has a pH of 5.83 at 25 degrees C, what is deltaG0 for the acid's dissociation at 25 degrees C?
For the following reactions, identify the substance that is the oxidizing agent and the substance that is the reducing agent.
Elements, which has the largest first ionization energy and equation correctly represents the first ionization of calcium?
A rectangular block of plastic, measuring 1.34 cm by 2.27 cm by 1.39 cm, floats in the middle of the Pacific Ocean. The volume of sea water displaced by the plastic block is 3.35 cm3. Assuming the density of the sea water is 1.025 g/mL, what is th..
As the liquid vaporizes the plunger is pushed out. At equilibrium, the plunger reads 6.51 mL of gas. Atmospheric pressure is 740. mmHg. What is the approximate molar mass of the compound (in g/mol)?
Final temperature after urea dissolves in water, What is the final temperature of the solution in kJ? The density of water is 4.18 J/g·°C. What is the final temperature in °F? F = °C x 1.8 + 32 (Round your answer to one decimal place)
Magnesium nitride reacts with liquid water to form insoluble magnesium hyrdroxide and ammonia. What is the balanced equation for such?
why differential pulse polarography is the most sensitive technique among the different modern types of polarography
one heating 5.03 g of hydrate barium chloride, 4.23 g is left behind. what is the name of this hydrate?
a highly radioactive element is determined to contain 0.3256 mol of the element. What is the element?
A 25.0 mL sample of river water was titrated with 0.0010 M Na2Cr2O7 and required 8.3 mL to reach the end-point. What is the chemical oxygen demand, in milligrams of O2 per liter, of the sample?
Calculate the amount of heat required to completely sublime 23.0g of solid dry ice (CO2) at its sublimation temperature
What mass of water (in grams) forms from the reaction of 2.49 L of hydrogen gas and 1.92 L of oxygen gas? Both gases are at 738 torr and 27.3 oC
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