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Assuming the volumes are additive, what is the [Cl-] in a solution obtained by mixing 225 mL of .625 M KCl and 615 mL of .385 M MgCl2?
Elements, which has the largest first ionization energy and equation correctly represents the first ionization of calcium?
Calculate the pH at the points in the titration of 40.00 mL of 0.425 M NH3 for the reaction below. NH3(aq) + HNO3 ? NH4+(aq) + NO3?(aq) For NH3, Kb = 1.8x10-5. Enter your answer with 2 decimal places.
Molecular orbital templates for diatomic molecules from the 2nd period elements are attached to the back of the exam. Use the appropriate diagram to determine the bond order in the O2+ ion.
A round plate having a diameter of 30.0 cm is being silver plated on one side, by electrolysis of silver nitrate, where the plate is the cathode
Explain why light intensity is dependent on the distance the detector is from the light source. Describe the mathematical relationship.
the utilization of one glucose molecule is involved d. oxygen is produced e. none of the above. Which answer is correct and WHY?
looking down from C2-C3 and starting at lowest energy conformer, draw all conformers for all the following molecules and rank the on the energy diagram.
Give the structure of the organic product of the reaction of phenylacetaldehyde with the following.(give the names of the products as well).
an equilibrium mixture of h2 i2 and hi at 458 contains 0.108 i2 0.108 h2 and 0.747 hi in a 5.00- vessel what is the
A single strand of natural silk may be as long as 4.03 x 10^3 m. Convert this length into miles.
Categorize each phrase below as being relevant to ionic bonding, covalent bonding or metallic bonding. 1. electron transfer 2. Nonmetal with nonmetal 3. Alloy 4. separate molecules 5. metal with metal 6
The normal freezing point of ammonia is -78 degrees celsius. Predict the signs of Delta H, Delta S, and Delta G for ammonia when it freezes at -80 degrees celsius and 1 atm: NH3 (l) ---> NH3 (s)
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