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Sodium bicarbonate undergoes thermal decomposition according to 2 NaHCO3(s) <=> Na2CO3(s) + CO2(g) + H2O(g) What happens when 0.20 atm of argon gas is added 1. [CO2] increases 2. [CO2] decreases 3. [CO2] stays the same
Write the net redox reaction.
calculate the vapor pressure of an aqueous solution at 30 degrees C made from 100 g of sucrose (C12H22O11) and 100g of water
Sucrose, C12H22O11, is a nonelectrolyte; hypochlorous acid, HClO, is a weak electrolyte; and ammonium chloride, NH4Cl, is a strong electrolyte.
What volumes of sulfur dioxide and dihydrogen sulfide gases are necessary to produce 11.4 L of water vapor? The balanced equation is SO2 + 2 H2S à 3 S + 2 H2O.
How many milliliters of 0.200 M NaOH will be required to titrate 19.6 mL of 0.479 M H2SO4
Chlorine gas can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric acid. How much MnO2 should be reacted with excess HCl to obtain 275 mL of chlorine gas at 5.0 °C and 650 mmHg?
a column of air with a pressure of 1.57 x 105 Pa and an area of 1.07 m2 and given that the acceleration due to gravity is 9.8 m/s2, what is the mass of the column.
The free energy change of the conversion of tasmainium to bulgarium was - 60 kcal and the enthalpy of the reaction was determined to be - 9.2kcal.
The vapor pressure of pure water at 70°C is 240. mm Hg. What is the vapor pressure depression of a solution of 150. g of the antifreeze ethylene glycol, C2H6O2, a nonvolatile compound, in 215 g of water?
a second reaction has a standard Gibbs free energy of -55 kJ/mol. What is the ratio of their equilibrium constants at 300 K?
the final temperature of both the water and metal is 32.81 degrees C. The specific heat of water is 4.184j/g*K. What is the speciic heat of the metal?
A clinic took temperature readings of 250 flu patients over a weekend and discovered the temperature distribution to be Gaussian, with a mean of 101.30°F and a standard deviation of 0.8490
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