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A compound containing C, H, I and S has a molar mass of 229g. It contains 6x as much C than H by mass. Find the empirical formula.
Arrange the following elements from greatest to least tendency to accept an electron. Rank from greatest to least tendency to accept an electron. To rank items as equivalent, overlap them.
A solution contains naphthalene (C10H8) dissolved in hexane (C6H14) at a concentration of 11.12% naphthalene by mass. Calculate the vapor pressure at 25?C of hexane above the solution. The vapor pressure of pure hexane at 25?C is 151 torr.
The initial solution pH depend on both the Ka and the concentration of the weak acid, so measuring the initial pH is insufficient to determine both these solutions.
An atmoshperic sample contains nitrogen at 599 torr, oxygen at 154 torr, argon at 6 torr, and carbon dioxide. Assuming standard pressure, what is the partial pressure of carbon dioxide gas
Describe why this is based on the wavelength range that is transmitted. What color would you see if you mixed the two solutions with ?max = 520 and ?max = 610?
State condensed structural formulas for all five carbon aldehydes and ketones and the molecular formula is C5H10O
calculate the temperature change in the water upon complete melting of the ice. hint determine how much heat is
A certain metal oxide has the formula MO where M denotes the metal. A 36.46g sample of the compound is strongly heated in an atmosphere of hydrogen to remove oxygen as water molecules.
The same apparatus is then filled with an unknown gas at 32.3 C to a pressure of 645 mm Hg. It takes 5 hours 34 minutes and 25 seconds for the pressure to fall to 207 mm Hg. Calculate the molar mass of the unknown gas.
what are the boiling point and freezing point of a 4.33 m solution of naphthalene in benzene? the boiling point and
What is the efficiency of the engine, with work done divided by the heat supplied expressed as a percentage? How could the efficiency be increased?
find the electronic configuration for ionization energies of magnesium the orbital number in which the electrons are
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