147 x 10-5 in proper scientic notation

5. (a)/ Provide the 12 principles of Green chemistry and explain the significance of any two of them.

See Figure 2-3. Do an orbital analysis of C-2 (arrows on lines like we did in class). It has a pi bond to C-1 and a pi bond to C-3. What is its hybridization? sp3 sp2 O sp

548.8 + 0.2 x 55.4±0.6 (1142.9 ± 0.6 – 171.0±0.5) ANS: Absolute uncertainty: Percent uncertainty:

The solubility of BaSO, in water at 25 °C is measured to be 0.0023 Use this information to calculate Ke, for BaS04. L sp Round your answer to 2 significant digits. |x10

Calculate the molecular mass of palmitic (hexadecanoic) acid (a fatty acid with formula C16H32O2). Express your answer in amu to 4 significant figures.

1 cmol Ca2+ = 1 cmol Na+   true or false

_H2 + _N2    => _NH3

Suppose some measurements are made on two different homogeneous stones to find out if they are made of the same kind of rock. The mass and volume measurements are listed below. Are the two stones the same type of rock? Why or why not? Show all calculations. Mass Volume Calculations Stone 1 58.0 g 20.0 cm Stone 2 50.1 g 15.0 cm3 21/common/assets/pdfjs/1.0.0.30/web/viewer.ht...ndered-pdf&fullscreen=Dd21-fileviewer-rendered-pdf-dialog&height=746#0

(a) Use the following theoretical density values for copper and zinc metals (in g/mL) and the experimental density values you obtained in Question 12 to determine the percent error in each of your experimental values. Density of copper (theoretical) ρCu = 8.94 g/mL  Density of zinc (theoretical) ΡZn = 7.14 g/mL The equation for percent error is: "%Error"=|"Experimental value - Theoretical value" /"Theoretical value" |×100 Show your work and calculated values, include units. (b) Suggest possible reasons for differences between the experimental and theoretical density values for each metal. 14. Describe any issues you had with the virtual lab, or any unrealistic situations you thought were funny. Also describe the benefits and deficiencies you seen in virtual labs compared to real lab experiences.