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The assignment consists of multiple-choice questions coming from subjects below:
types of intermolecular forces and their effects on the physical properties of substances (boiling point, freeze point, melting point, vapor pressure)
properties of liquids
properties of solids
phase changes
heating and cooling curves
types of solutions
solution process
effect of intermolecular forces, temperature, and pressure on solubility
solution concentrations (molarity, molality, mass percent, and volume percent)
colligative properties of solutions (boiling point elevation, freezing point depression, and osmotic pressure)
collision theory and reaction rates
rate law of a reaction
calculations using zero-, first-, and second-order reactions
determining the rate equation, rate law constant, and reaction order from experimental data
half-life calculations
calculating the activation energy of a reaction
equilibrium concept and the significance of the equilibrium constant (K)
writing equilibrium expressions for homogeneous and heterogeneous equilibrium reactions
factors that affect chemical equilibrium and Le Châtelier's principle
calculations on equilibrium reactions
common acids and bases and their behavior in aqueous solutions
Brønsted-Lowry theory of acids and bases
acid-base properties of water
pH concept and its application to strong and weak acids and bases
acid and base equilibrium
acid-base properties of salts
Why is the water bath used to heat the reaction? 4)What is the mechanism of the reaction of phenylmagnesium bromide and CO2? Include the workup steps. 5) In this experiment, it is important to use freshly obtained dry ice. Why?
Calculate the volume of a gas if 10.0 ml of pure alcohol (C2H6O) is vaporized at its normal boiling point. (assume 1 atm pressure)
For an oxidation and reduction reaction, indicate what is oxidized and what is reduced in the following reaction.
Assuming that radiation with ?=15.0 cm is used, that all the energy is converted to heat, and that 4.184 J is needed to raise the temperature of 1.00 g of water by 1.00 ^0C , how many photons are necessary to raise the temperature of a 350 mL cup ..
the electron in a hydrogen atom is excited and makes a transition from n2 to n7. calculate the energy of the photon
A 493 mL sample of solution contains 33.2 g of CaCl2 Calculate the molar concentration of Cl in this solution
What volume of CO2 gas is produced by the complete combustion of 2.6L (C3H8) gas? Assume all gas volumes are measured at the same temperature and pressure. C3H8 + 5O2 ---> 3CO2 + 4H2O
how does the rate of formation of O2 compare to (a) the rate of formation of H2O and (b) the rate of disappearance of H2O2?
Select each side of the mass balance equation for an Fe3(PO4)2 solution where the existing species are Fe2
The reactions that occur are CH4 + 2 O2 = CO2 + 2 H2O and 2 C2H6 + 7 O2 = 4 CO2 + 6 H2O. How many grams of oxygen are needed to react completely with 50.0 grams of the hydrocarbon mixture
How would increasing the molarity of the NaOH solution from 0.5M to 1.0M affect the number of drops required for the observed color change to occur
Calculate the pH at 25 degrees C of a 0.25-M aqueous solution of oxalic acid (H2C2O4). (Ka1 and Ka2 for oxalic acid are 6.5 x 10^-2 and 6.1 x 10^-5, respectively.)
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