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If gold has a density of 19.3 g/cm3, how heavy in pounds is a gold bar at Fort Knox (dimensions of 7.0 in x 3 5/8 in x 1 3/4 inches? If the current price for gold is $1400 per troy ounce, how much is 1 bar of gold worth in ? (make sure you look up troy ounce!)
An industrial chemist studying bleaching and sterilizing prepares a hypochlorite buffer using 0.150 M HClO and 0.150 M NaClO. (Ka for HClO = 2.9x10^-8.)
A sample of gas at 47°C and 1.03 atm occupies a volume of 2.20 L. What volume would this gas occupy at 110.°C and 0.795 atm?
How much water must be added to 562 mL of 0.200 M HCl to produce a 0.148 M solution? (Assume that the volumes are additive.)
a gas expand and does P-V work on the surroundings equal to 294 J, at the same time , it absorbs 196J of heat from the surroundings. what is the change in energy of the system
Discuss in detail, one way in which atomic nuclear decay takes place. What is the significance of atomic nuclear decay? Analyze the societal implications of using this process.
Give the basicity order? List from most to least basic. 3. Explain the basicity order in terms of resonance and inductive (polar) effects and solvation effects.
Find what is the initial concentration of the chlorine before dilution - unknown concentrated chlorine
What is the rate law for step 2 of this reaction? Express your answer in standard MasteringChemistry notation. For example, if the rate law is type k*[A]*[C]^3.
explain why granulated activated charcoal is considered to be the best available treatment technology for dioxins in water.
State three acids, bases, and salts used in therapeutic processes. Describe how one of each is used in therapeutic processes.
A solution was prepared to have a density of 1.20 g/mL and a molality of 2.24 m at 22oC. The Mm of the solute is 63.10 g/mol. (a) What is the molarity of the solution?
if 135 g of steam at 100 degrees C and 475 g of ice at 0 degrees C are combined, what is the temperature of the resultant water, assuming that no heat is lost?
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