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0.10 M potassium chromate is slowly added to a solution containing 0.50 M AgNO3 and 0.50 M Ba(NO3)2. What is the Ag+ concentration when BaCrO4 just starts to precipitate? The Ksp for Ag2CrO4 and BaCrO4 are 1.1 x 10-12 and respectively.
A student is presented with a sample of an unknown substance and asked to classify the substance as organic or inorganic
The mass spectrum of an organic compound shows the relative abundances of M to be 36.44% and M 1 to be 8.277%. Assuming the peaks are caused by 12C and 13C isotopes
What single reagent could you add that would allow you to differentiate between the members of each pair of solid compounds below? Tell what happens to each substance when the reagent is added and write a balanced net ionic equation wherever a rea..
if you add .454g of nitroglycerine to 100g of benzene at 25C, the vapor pressure of the solution is 94.85mmHg. Calculate the molar mass of nitroglycerine.
Using Henry's law, calculate the molar concentration of in the surface water of a mountain lake saturated with air at 20 and an atmospheric pressure of 660 torr.
A scuba diver with a lung capacity of 5.3L inhales a lungful of air at a depth of 47m and a pressure of 5.7atm.
Determine the required CSTR volume, V (in gallons), and hydraulic residence time, in V/Q (hours), to comply with the current industrial pretreatment permit limitation for phenol
How many grams of LiCO3 do you need to weigh out to dissolve in the 5.0 liters? If you had started with a 5000. ppm solution of Li2CO3 solution, how many mL of it would you need to pipet into the 5.0 liter to achieve the same 425 ppb Li 1 solution..
write the equation for self-ionization of water and why ammonia is a weak base.
if the experimenter uses a thermometer that reads 1.4C too high how will this affect the calculated molar mass.
Draw a Lewis structure for ammonia NH3-.Show all unshared pairs and formal charges, if any. Assume that bonding follows the octet rule.
Standard reduction potentials are given on the next page. (a) Draw a diagram of the electrochemical cell, labeling all electrodes and solutions. (b) What is the pH in the Pt | H+ | H2 half-cell? (c) What is the value of the equilibrium constant fo..
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