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Determine the molecular formula of a compound, which has CF2 as an empirical formula if 1.55 g of this compound occupies 0.174 L at standard temperature and pressure?
Draw the expected d-orbital splitting for the d-orbitals in a trigonal planar complex ion. Assume the z-axis is perpendicular to the plane of the complex. In a couple of sentences, explain the logic behind your splitting diagram.
Determine the pH of HNO2 solution in which case you cannot make the simplifying assumption that x is too small.
You start with 50 mL of 1.0 M acetic acid. How many mL of the acid should you place in a 100?mL volumetric flask in order to prepare
In its 2012 Annual Report, McDonald's made the following statement: "In 2012, foreign currency translation had a negative impact on [reported revenue and profits] primarily due to the weaker Euro, along with most other currencies." What does the a..
Suppose the mean of the process shifts and this shift doubles the fraction of nonconforming product. Calculate the sample size needed to implement a p chart that will detect this shift on the first subsequent sample with 50% certainty.
If a solution has a pH of 2.36 and you do a 20-fold dilution of it with ultrapure reagent-grade water, what will its pH be after you dilute it
Analysis of an unknown substance showed that it has a moderate melting point and is a good conductor of heat and electricity in the solid phase. Which of the following substance would have those characteristics
Based on your knowledge of the TLC of the components of Excedrin, propose an experiment that would separate these components, including the order of elution off a chromatography column.
A chemical reaction has been the subject of intense study, and a rate law, rate = k[A][B]2, was developed which summarised the mechanistic findings. Which one of the following changes to the system will not cause an increase in the rate constant u..
A 0.2678g sample of an unknown acid requires 27.21mL of 0.1164 M NaOH for neutralization to a phenolphthalein endpoint. There are 0.35mL of 0.1012 M HCl used for back-titration. What is the molar mass of the unknown acid
Explain what connection is there between this contrasting behavior of metal as well as nonmetal oxides and ionization energies
If 33mL of 1.20M HCL is added to 42mL of a solution containing excess sodium hydroxide in a coffee cup calorimeter. The solution temperature, initially at 25.0C, rises to 31.8C. Give a thermochemical equation, including
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