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Magnesium metal reacts with HCl solution, liberating H2 gas and generating Mg2+ cations in solution. A 2.530-g sample of Mg metal is added to 50.0 mL of a 4.00 M HCl solution, and the reaction goes to completion. How many grams of H2 are formed?
Suppose you have a stoppered ?ask containing CO2 gas at room temperature and pressure. If the volume of your stoppered ?ask is 300.0 mL, the pressure in the room is 770 mm Hg, and the temperature in your work area is 22.0°C, how many moles of CO2 ..
What's a net zero molecular dipole moment. and explain specifically why does [IF2]- have a net zero molecular dipole moment
How many ml of 94 w/w% sulfuric acid (d=1.84 g/cm^3) is necessary for the preparation
A certain substance, intially present at 0.500 M, decomposes by second-order kinetics with a rate constant of 4.00 x 10-1 L/mol min. Calculate the time (in minutes) required for the system to reach a concentration of 0.370 M.
What will happen to the retention time if the flow rate is increased What will happen to the retention time if the temperature of the column is increased
When maleic acid is heated to about 100C it forms maleic anhydride, however fumaric acid requires a much higher temperature (250-300C) before it dehydrates
Consider the neutral form of the amino acid histidine a) When the neutral form of the amino acid histidine (HA) is titrated with HClO4, write the sequence of reactions that occur. Draw structures of reactants and products.
Which of the following molecules is best described as having a nearly tetrahedral distribution of electron density
Consider the titration of a 25.0 mL sample of .125M RbOH with .105M HCl. Find the initial pH.
Calculate the percentage error likely to arise in an experiment if 1-mL, 5-mL, and 10-mL pipets are used for the transfer and each pipet contains five drops of water adhering to the inside of the barrel. A single drop of water has a volume of appr..
The mass of substance B is 25.0g and its initial temperature is 52.0 degrees C. The final temperature of both substances at thermal equilibrium is 46.0 degrees C
Calculate the surface tension from 0.028M soap solution at 293K. If the surface tension of 0.056M soap solution is 0.0433Joule per kelvin square. Surface tension of pure water is 0.0728 joule per meter square.
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