Solutions Closed book (yes/no) (Formula weights: HCl =36.5; MgSO4.H2O= 169, sucrose =342.3, mannitol =182.17, CaCl2.2H2O = 147, KCl =74.5, NaOH= 40.0; Na2HPO4= 414.96; MgCl2 .6H2O = 203.31; conc HCl = 11.6 M; conc. Describe how you would make up 75 mls of 5% sucrose. Starting with concentrated HCl, describe how you would make up 50 […]
using slater’s rules, calculate the Zeff of a Cl- and a K+ ion
List the following substances in order of decreasing boiling point: KF,Ne,CO2, CH3OH
How many milliliters of dry CO2, measured at STP, could be evolved in the reaction between 27.8 mL of 0.660 M NaHCO3and 15.2 mL of 0.187 M HCl?
27) Compute the centripetal force of a 90.0 kg astronaut who orbits Earth at 2-earth radii from Earth’s center. Mearth= 6.0×1024 kg
Draw a diagram of a voltaic cell whose two half reaction consist of Ag in AgNO3 and Ni in NiSO4. Identify the anode and cathode, and indicate the directions in which the electrons and ions are moving.
Dario, a prep cook at an Italian restaurant, spins a salad spinner 20.0 times in 5.00 seconds and then stops spinning it. The salad spinner rotates 6.00 more times before it comes to rest. Assume that the spinner slows down with constant angular acceleration.
Calculate the [Cr+3] in equilibrium with Cr(OH)4-(aq) when 0.010 mol of Cr(NO3)3 is dissolved in a liter of solution buffered at a pH of 7.3. Kf for Cr(OH)4-(aq) is 8.0 x 1029.
More than half of our antibiotics areA. Produced by fungi.B. Produced by bacteria.C. Synthesized in laboratories.D. Produced by Fleming.E. Produced by eukaryotic organisms
what if any are the ethic issues relating to autonomy and the surrogate mother? ethics healthcare
