LT 2.2.1: Identify the purpose of an investigation and/or the major concepts being investigated. Joselin was given a sample of metal that she was told was pure gold. She wasn't sure that she could trust the person who gave her
the metal so she decided to test it to make sure it was actually pure gold. Luckily Joselin learned in chemistry class that you can
identify metal by determining its density. She measured the mass of the metal and then determined its volume by displacement. After
completing her calculations she found that the density of her metal was 8.94 g/cm3. She compared her calculated density to a list of
known metal densities and determined that her metal sample was copper and not gold.
What is the purpose of Joselin's lab investigation

What is the rate law for the uncatalyzed reaction?

What is the enthalpy of combustion (per mole) of c4h10 (g)? –2,657.5 kj/mol –5315.0 kj/mol –509.7 kj/mol –254.8 kj/mol

For questions 1 and 2, consider the following experimental data.hydrogen emission lines were detected at the following wavelengths (in nm): 121.6102.697.395.093.8question 1use the electromagnetic radiation classifications below and figure 1-1 in the introductory information for this lab (in the lab manual) to determine the nf value for the experimental data provided? wavelength, ? (nm) 650 700 550 600 400 450 500 visible spectrum wavelength, ? (m) 11 10 3 10 10 10 8 10 5 10 10 -10 10 9 10 10 10 10 -12 10 microwave radio infrared x-ray ultraviolet gamma 1020 1019 1018 1 1016 015 1014 01 12 109108 frequency, v (hz)a.1b. 2c. 3d. 4e. 5question 2using the data for the emission line with the longest wavelength, the known value of nf (from question 1 in this prelab), and the value of ni (deduced from the ? and nf values) calculate the rydberg constant for hydrogen (rh) in units of m-1.a) 1.097 x 10-11 m-1b) 5.921 x 107 m-1c) 1.097 x 10-2 m-1d) 9.252 x 106 m-1e) 1.097 x 107 m-1