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During your research, did you come across the masses of the various subatomic particles we discuss in chemistry? How does the mass of the proton relate to the mass of a neutron and electron? Which atoms contribute the greatest amount of mass to an atom? After you research these questions, look at this sentence about molecular mass and see if you can find where some clarification is needed. The sentence is written as such "Molecular mass is the mass of one molecule which is equal to the sum of the mass of electrons and neutrons".
A new drug is developed that shows promising results in AIDS patients, especially when it used to prevent a mother from passing the virus to her unborn child.
1. explain why adding an excess of po43- will cause a more complete precipitation of capo42.2. strontium phosphate is
Arrange the following molecules in order of increasing bond strength. (Enter the correct sequence as a four digit number) O2=1O22-=2O2+=3O2-=4
What is Valence Electrons, Bonds Electrons,Non-Bond, VSEPR, Approx bond Angle, and Geometric Shape of H20
For a particular redox reaction MnO2 is oxidized to MnO4- and Cu2 is reduced to Cu . Complete and balance the equation for this reaction in basic solution. Phases are optional.
The white precipitate obtained when cold HCl was added to an unknown solution was completely insoluble in both hot water and NH4OH
Strike anywhere matches cantian the compound tetraphosphorus trisulfide, which burns to form tetraphosphorus decaoxide and sulfur dioxide gas
what is the resulting total pressure of gases in the now-joined flasks? (assume no reaction between the gases and that the gases behave ideally)
The (delta H degrees f) of TiI3 (s) is -328 kJ/mol and the (delta H degrees) for the reaction 2 Ti(s) + 3 I2(g) -----> 2TiI3 (s) is -839 kJ/MOL. calculate the (delta H) of sublimation of I2 (s), whch is a solid at 25 degrees celcius.
Under standard-state conditions, which of the following reactions is spontaneous?
A 21.0-mL sample of an unknown H3PO$ solution is titrated with a 0.100M NaOH solution. The equivalence point is reached when 18.35mL of NaOH solution is added.
What is the pH of the HCl solution before any of the NaOH solution is added. What volume of the NaOH solution is required to reach the equivalance point of the titration
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