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Choose the correct expression for Keq and description (homogeneous or heterogeneous) for the following reaction: 2 PbO(s) + 2 SO2(g) 2 PbS(s) + 3 O2(g)
using all atoms and bond structure, show an ionization reaction for benzoic acid
The volumes of a solution containing 1.10ppm Zn+2 shown in the table below were pipetted into separatory funnels, each containing 5.00mL of an unknown zinc solution. Each was extracted with three 5-mL aliquots of CCl4 containing an excess of 8-hyd..
Einstein stated that the incident radiation had to have a minimum energy to dislodge the electron from the metal surface. This energy is called the work function.
what will be the concentration of dichlobenil in the pond? The following conversion factors will be helpful: 1 acre=43,560ft2 1ft=12in 1in=2.54cm 1cm3=1mL 1ft3=28,317cm3
When 2.05 moles of a monoatomic ideal gas is reversibly heated at constant volume from 25 degrees celcius to 45 degrees celcius the entropy change of the system
Calculate the weight of precursor salt needed to make 500 ml of a 2 M aqueous solution of the metal ion from each salt.
A balloon filled with 39.1 mol helium has a volume of 876 L at 0.0 C and 1.00 atm pressure. The temperature of the balloon is increased to 38.0 C as it expands to a volume of 998 L, the pressure remaining constant.
Wind provides a source of renewable energy that is increasingly being tapped. Modern wind tubines can conbert up to 30% of the kinetic energy of the incoming wind blowing through their blades to electicity.
A mass of G grams of a liquid are placed in a closed 15 liter, fixed-wall container. The molecular weight of the liquid is 18 g mol-1. Its molar heat of vaporization is 44 kJ mol-1. Its normal boiling point is 373 K. A scientist measures the press..
A 1.500-g sample of a mixture containing only Cu2O and CuO was treated with hydrogen gas to produce 1.276 g pure copper metal. Calculate the percent composition by mass of the mixture.
How many grams of calcium chloride should be formed from the reactions of hydrochloric acid and calcium hydroxide? If the reaction in 2.4 only produces 3.0 g calcium chloride, calculate the percentage yield of calcium chloride.
Draw the structure of the organic compound that exists when lidocaine is in the presence of an acidic solution, for example, hydrochloric acid. You may use standard implicit style for atoms and lone-pairs if you like, but make sure that all bonds ..
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