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Is the solubility of a cation predictable from the position of its element in the Periodic Table? Is precipitate color predictable from the position of the cations element in the Periodic Table?
an empty aerosol can at 25 degree calcius still contains gas at 1.00 atmosphere pressure. if an empty can is thrown into a 475 degree calcius fire, what is the final pressure of the heated can?
450 mL of oxygen is bubbled through water at 10 degrees celsius and exerts 720.0 torr. What volume will the dry gas occupy at 730.0 torr and 10 degrees celcius?
A bacterial culture isolated from sewage produced 35.0 mL of methane, CH4, at 31°C and 753 mmHg. What is the volume of this methane at standard temperature and pressure (0°C, 760 mmHg)?
Calculate the amount of energy in kilojoules needed to change 117 of water ice at 10 to steam at 125 . The following constants may be useful.
How many moles of chlorine molecules correspond to 7.40 x 1026 molecules of Cl2?
Calculate the change in pH when 9.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq).
a gaseous compound is composed of 85.7% by mass carbon and 14.3% by mass hydrogen. its density is 2.28 g/L at 300 K and 1.00 atm pressure.determine the molecular formula of the compound.
Calculate the heat released when 2.57 L of Cl2(g) with a density of 1.88 g/L reacts with an excess of sodium metal at 25°C and 1 atm to form sodium chloride.
The half-life of a certain radioactive element is 1,250 years. What percent of the atoms remain after 7,500 years?
The natural abundance of 107 Ag is 51.84%. How many 107 Ag atoms are present in a piece of silver weighing 150 mg?
A volume of 20.22 mL of NaOH solution which is (0.046464) was needed to titrate 10.06mL of acetic acid to the phenolphthalein end point.
The addition of H2 to C=C double bonds is an important reaction used in the preparation of margarine from vegetable oils.
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