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The coinage metals -- copper, silver and gold -- crystallize in a cubic closest packed structure. Utilize the density of silver (10.5 g/cm3) as well as its molar mass (107.9 g/mol) to compute an approximate atomic radius for silver.
Calculate the change in pH when 4.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq). Calculate the change in pH when 4.00 mL of 0.100 M NaOH(aq) is added to the original buffer s..
Why do you not need to accurately measure the volume of deionized water in which you dissolve the iron salt
A bowl of 464 g of water is placed in a microwave oven that puts out 776 watts (J/s). How long would it take in seconds to increase the temperature of the water from 12.0oC to 46.0oC? Use SF.
When an ionic solid dissolves in water, water molecules attract the ions causing them to dissociate of come apart. The resulting dissolved ions are electrically charged particles that allow the solution to conduct electricity.
What volume of radon will be produced per hour at STP from 1.075 g of 226Ra? (t1/2 = 1599 yr; 1 yr = 8766 h; mass of one 226Ra = 226.025402 amu)
if 12.5 g of ironiii oxide rust are pro- duced from 8.74 g of iron how much oxygen gas is needed for this
Compare the orbital electronic configuration for K and Rb (s block), Hf and Zr (d block), F and Cl (p block). For each element, which ionic configuration should be the most stable?
The reaction below is studied at a high temperature. PCl5(g) f PCl3(g) + Cl2(g) At equilibrium, the partial pressures of the gases are as follows: PCl5 = 1.8 × 10-2 atm, PCl3 = 5.6 × 10-2 atm, and Cl2 = 3.8 × 10-4 atm. What is the value of Kp for ..
Ethanol (CH3CH2OH), the intoxicant in alcoholic beverages, is also used to make other organic compounds. In concentrated sulfuric acid, ethanol forms diethyl ether and water
Hospital patients are administered oxygen from an pressurized hyperbaric oxygen chamber. 600.0 L of oxygen is compressed in a cylinder at 160.0 atm. What volume of oxygen can a cylinder supply at the given pressure.
the radiation level was determined to be .00935 microCi/mL. If 51Cr has t1/2=27.7 days, what is the volume of blood in the patient?
Consider a triprotic system whose fully protonated form can be denoted by H3A. By definition, the fractional composition of the most basic form of the system, A3-, can be written as
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