In the experiment, you are striving to determine the answer both accurately and precisely. Which of the following types of glassware can record the volume to two decimal places ( that is, are precise to 0.01 mL)

a. beaker

b. erlenmeyer flask

c. buret

d. mohr pipet

e. dropper

f. volumeric pipet

g. volumeric flask

A 15.44 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis and 21.89 grams of CO₂ and 13.44 grams of H₂O are produced.

In a separate experiment, the molar mass is found to be 62.07 g/mol. Determine the empirical formula and the molecular formula of the organic compound.

Empirical Formula?

Molecular Formula?

Suppose we are interested in the impact of political campaigns (phone calls, mailings, and visits by campaign workers) on support for candidates. a) What are some potential limitations of analyzing this question using observational data? b) How should we create an experiment to assess whether these campaign activities matter? What might some of the challenges be?

An experiment about the gender success in Math courses is performed and the following results are obtained. 150 out of 270 male participants could get a grade above 50. On the other hand 135 out of 228 female participants obtained a score above 50. Design and perform a test to see if the difference is statistically significant.

5. Suppose a random variable, x, arises from a binomial experiment. If n = 23, and p= 0.22, find the following probabilities using technology. show work

1. P (x = 21)
2. P (x = 6)
3. P (x = 12)
4. P (x<=14)
5. P (x >=17)

6. P (x <= 9)

Ultraviolet light is used for a photo-electric effect experiment on cadmium. For a given photon wavelength, the energy of the most-energetic emitted electrons is measured to be 8 eV. The experimenter doubles the wavelength of the ultraviolet light and measures a different electron energy:

a) For the zeeman effect what is generally the shape of the magnetic field between the pole pieces of the electromagnets and what effect might the shape of the magnetic field have on the results of this experiment?
b) How would the interference pattern observed for the normal Zeeman effect (eg with a cadmium lamp) differ from the anomalous Zeeman effect transition?

Calculation, Chrimatrographic, and Spectral Applications Experiment:

1. Based on the listed atom economy, experimental atom economy, and “E” product given, what do these values indicate about the efficiency of a dehydration reaction? (Use correct units).

-The atom economy for the reaction was 82.37%.

- The experimental atom economy was 82.40%.

- The “E” product was 70.00

1. In this experiment we injected the sample to be analyzed by Gas Chromatograph equipped with an FID (Flame Ionization Detector). The detector ionizes the sample as it reaches it, and the peak is proportional to the number of ions with a live flame. Explain in detail, why we need to run a standard when the GC is equipped with an FID detector to identify the component in a sample?