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Mg + 2HCl --> MgCl2 + H2 For a mass of 0.013 g Mg and 5.0 mL of 1.00 M HCl, in a flask with V = 140.612 mL at 23.5?C. Calculate the vapor pressure of H2 and vapor pressure of water.
Given that the Ka of boric acid is 5.8x10^-10M, what is the pH of a 0.50M boric acid solution? Are there any good approximation available?
the lower state was the ground state and the upper state was the first excited state for the flame tests of each metal atom you observed,
Example of reducing agent mechanism, Using Curved arrows to symbolize the flow of electrons, write the mechanism for the steps involved in the conversion of 9-fluorenone
How much would the beaker and its content weigh if it was completely filled with mercury? The density of mercury is d = 13.5 g/mL ? = g
A calibration is performed with a standard solution of iron in water. Aniron solution in methyl ethyl ketone is analysed based on this calibrationfunction. Is it likely to yield an accurate result? or would the result be toohigh or too low? Explai..
The hemodialyzer is 30cm long (between the blood inlet and blood outlet), and the blood inlet tubing and blood outlet tubing have the same diameter. What is the blood pressure drop (in units of mm Hg) from inlet to outlet if the hemodialyzer is or..
What is the equivalent weight of (MnO4). How many equivalents of electrons were delivered to the unknown soln
From the same container under the same conditions--same temperature and initial pressure, it takes 40 s for 1.00 L of O2 gas to effuse. Calculate the molar mass (in grams/mol) of the unknown gas.
Balance the following redox reaction if it occurs in acidic solution. What are the coefficients in front of H2C2O4 and H2O in the balanced reaction
Use the atomic radius (70 pm) and density of neon at 25 °C and 1 atm (0.90 g/mL) to calculate the average density of a neon atom.
What mass of water, in grams, produces 729 J when cooled from 58.0 degrees Celsius to 28.0 degrees Celsius? The specific heat capacity of water is 4.184 J/g.°C.
what is the length of the unit cell when tantalum (atomic radius = 145 pm) crystallizes in a bcc structure
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