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Solid silver nitrate is added slowly to a solution that is 0.0010 M in sodium chloride and 0.0010 M in sodium bromide. What % of the bromide ions remain in solution, i.e., unprecipitated, just before silver chloride begins to precipitate? Ksp for AgCl=1.8x10^-10, Ksp for AgBr=3.3x10^-13
Sodium azide (NaN3) is sometimes added to water to kill bacteria. Calculate the concentration of all species in a 0.010 M solution of NaN3. The Ka value for hydrazoic acid (HN3) is 1.9 * 10-5.
In an aqueous solution that contains 285 mg of trichloroacetic acid (HA), Cl3CCOOH (163.4 g/mol) in 10.0 ml. Calculate: 1) Analytical molar concentrations of HA species
When aqueous solution of sodium sulfate and lead nitrate are mixed, lead sulfate precipitates. Calculate the mass of lead sulfate produced when 1.25 L
Chromium crystallizes in a body-centered cubic lattice (the Cr atoms are at the lattice points only). If the density of the metal is 7.19 g/cm3, what is the unit cell edge length in pm?
Calculate the amount of heat liberated (in kJ) from 293 g of mercury when it cools from 79.0°C to 14.0°C.
Determine the rate law and the value of k for the following reaction using the data provided
The solubility of a certain compound in ice-cold water is .19g in 100mL. its solubility in hot water is 3.35g in 100mL.
A certain gas has a volume of 200 dm3 at 27oC and 2 atmospheres of pressure. What is its volume at STP?
What is the percent yield of a reaction in which 244 g phosphorus trichloride reacts with excess water to form 144 g HCl and aqueous phosphorus acid (H3PO3)?
If 0.487 grams of AgNO3 is dissolved in 20 ml of water, how many moles of silver ions will be present in each millimeter?
3.00 g of NaOH are dissolved in 100.0 g of water in a coffee cup calorimeter. The temperature change is +7.50 degrees celcius. Calculate the enthalpy change involved in the process.
Sodium azide, NaN3 , is made for use in car 'air bags'. When this compound is heated to 300 degrees celsius, it rapidly decomposes into its elements.
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