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- Explain the data related to odour in terms of types of bonds. Do you think that a substance can be relatively volatile and not have an odour? Give an example.- Explain in terms of bonding the variations in melting between the two solids.- Are the relative strengths of covalent and ionic bonds comparable, when melting points are compared? Explain.- At what temperatures do KBr and p- dichlorobenzene melt?- In p-dichlorobenze, are the intermolecular or intramolecular forces greatest? Explain your answer.- Use the periodic table or chart of electronegativities to predict whether or not the following substances are largely ionic or largely covalent: LiF, ICl, Na2O, SO2, and BaI2.LiFIClNa2OSO2BaI2- Give one use for each substance.
The mixture of saltwater and ice around the ice cream bucket in the ice cream machine is at a temperature of -8.40C. What mass of sodium chloride would be found in 1,477 grams of this solution?
Give three reasons why spectrophotometric analyses are performed using a narrow wavelength band centered at ? max. Give the purpose of the following commands:
The volume of a gas at 95.0 kPa is 300.0 mL. If the pressure is increased to 177 kPa, what will be the new volume?
An empty 2.0 L soda bottle is tightly capped at 25 degrees C and 732 mmHg. If the bottle is heated to 100 degrees C what is the pressure in the bottle
A reaction 3A2+ + 2B --> 3A + 2B3+ is used to make a battery. The standard Gibbs free energy change for the given reaction is -690 kJ. What is the standard potential (E ) for the battery.
A sample of 0.0020 mole of HCl is dissolved in water to make a 2000-mL solution. Calculate the molarity of the HCl solution, the [H3O+], and the pH. For a strong acid such as HCI, the [H3O+] is the same as the molarity of the HCl solution.
A gaseous mixture of O2 and N2 contains 36.8% nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 685 mmHg.
When 28.6 kg of Fe2O3 react with 17.2 kg of CO and 6.3 kg of Fe are recovered, what is the percent yield for the reaction?
A 10.0 mL sample of liquid bleach is diluted to 100. mL in a volumetric flask. A 25.0 mL aliquot of this solution is analyzed using the procedure in this experiment. If 12.1 mL of 0.30 M Na2S2O3 is needed to reach the equivalence point, what is th..
A buffer solution is made by dissolving 0.45 moles of a weak acid (HA) and 0.33 moles of KOH into 800 mL of solution. What is the pH of this buffer? Ka = 5.9 × 10-6 for HA.
Assume that the aluminum atoms can be represented as spheres, as shown in the drawing (Part C figure) . If each {rm Al} atom has a radius of 1.43 {rm AA}, what is the length of a side of the unit cell?
Determine molar mass for this compound and oxidation state of lead in it. write the oxide formula of lead for the corresponding oxidation state
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