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Define this observation As concentrated H2SO4 is added to water, the temperature of the resulting mixture rises.
The concentration of SO4 is .5 M in a certain solution of Al2(SO4)3. what is the molar concentration of Al in the solution
They are used as foaming agents, propellants, and refrigeration fluids. Freons are controversial because of the damage they do to the ozone layer in the stratosphere. A 5.87 g sample of a particular freon in a 3.45 L bulb at 25.00°C has a pressure..
Although it might not be the best choice, a student prepares a buffer using HN3 and NaN3 solutions. Find the approximate pH of the solution s/he made by mixing 0.150L of 0.800M HN3 with 0.200L of 0.25 M N3^-
What is the change in the boiling point of the aqueous solution? and water how man moles of ions are present is solution
If each unpaired electron gave rise to a magnetic field with a magnitude of B, what would the magnetic field of BeN be
a stone is thrown downward with a velocity of 66 feet per secound 45mph from a bridge that is 120 feet above the
The vaporizaation for the compound is 24.75 kJ/mol. Calculate the heat required to convert 50.0 g of freon 11 from liquid at -50 C to a gas at 50 C.
A solution of 116 mL of 0.170 M KOH is mixed with a solution of 230 mL of 0.240 M NiSO4. What precipitate forms?
write the condensed electron configurations for the rm ga atom.express your answer in condensed form in order of
An impure sample of potassium hydrogen phthalate, KHP, having a mass of 84.02 g was dissolved in water. This acid sample was neutralized by the addition of 536.0 mL of 0.125 M NaOH.
An Nd:YAG laser emits photons at 1064 nm in a pulse of 5.0 ns duration with a total energy of 300 mJ. What is the power (energy per time) associated with such a pulse. How many photons are emitted in such a pulse.
An aqueous solution of NaCl has a mole fraction of 0.30. What is the mass of NaCl dissolved in 185.9 mL of solution
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