Chemistry, 14.06.2021 18:20, LordBooming
Calculate the following for test tubes 3 and 4, and record the results in the table:
the number of moles of zinc used (Use 65.38 grams/mole as the molar mass of zinc.)
the heat absorbed by the water, in joules (Use Q = mCΔT, where 10.0 milliliters of water has a mass of 10.0 grams. Use 4.186 joules/gram degree Celsius as water’s specific heat capacity.)
the change in internal energy of the copper(II) sulfate (Assume that energy released by the copper(II) sulfate is absorbed by the water.)
the reaction enthalpy, in joules/mole
Answer these for both test tubes
Moles of zinc
Heat absorbed by water (J)
Change in internal energy (J)
Reaction enthalpy (J/mol)
Answers: 2
Chemistry, 22.06.2019 04:50, aletadaboss
Acompound contains c, h, and o atoms. when 1.130 g of the compound is burned in oxygen, 1.064 g co2 and 0.3631 g h2o are produced. what is the empirical formula of this compound?
Answers: 1
Chemistry, 22.06.2019 11:30, claudr03
If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.
Answers: 3
Calculate the following for test tubes 3 and 4, and record the results in the table:
the number of...
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