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1. How the size of cations and anions compares to the size of their neutral atoms and explain why
2. Define the term isoelectronic (same # electrons) and how the sizes of isoelectronic atoms compare
3. Define the Octet and Duet rule and how it explains the charges on common ions and both covalent and ionic bonding (for representative elements only)
36 grams of an impure zinc sample are reacted with excess hydrochloric acid and 10 L of hydrogen gas are collected at STP, what is the percentage of PURITY of zinc sample
Consider a substance X with a Hvap = 20.3 kj/mol and Hfus = 9.0 kj/mol. The melting point, freezing point, and heat capacities of both the solid and the liquid X are identical to those of water
Working with ideal gas law, The pressure of a sample of gas at a constant temperature of 25 degrees C is increased from 1.0atm to 1.3atm
what quanitity of energy does it take to convert 0.500kg ice at -20 Celsius to steam at 250 celsius? specific heat capacities: ice, 2.03J/g Celsius
solution were added to 12.00 mL of an aqueous 0.025 M Fe3+ solution. The total volume of the solution is 20.75 mL. What is the initial diluted Fe3+ concentration?
Balance the following reaction and predict the number of moles of SO2 required to completely react with 3.0 moles of 0.2 SO2+O2---->SO3
Platinum has a face-centered cubic crystal structure and a density of 21.5 g/cm3. What is the radius of the Platinum atom?
Show that Ka Kb = Kw for a weak acid and its conjugate base OR a weak base and its conjugate acid, using the equilibrium expression for each.
Q 3: The salt NaBrO(3) oxides Sn^2+ to SnCl(6)^2- in the presence of hydrochloric acid according to the equation
The density of so-called "heavy water"=1.1053 g/mL at 20 0C. determine what would be the mass of the flask when filled with heavy water?
Calculate the molar solubility of Mn(OH)2 in moles/L and in g/L. What would happen to the solubility of Mn(OH)2 when 0.02 M NaOH is added to the solution. Calculate the new solubility after the addition of NaOH.
How many grams of CH4 is needed to produce 33.5 g CHCl3.
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