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In which one of the following aqueous solutions would you expect AgBr to have the lowest solubility?
pure water
0.15M LiBr
0.10M KBr
0.20M AgNO3
0.25M NaBr
A certain first-order reaction (A products) has a rate constant of 4.80×10-3 s^-1 at 45 C. How many minutes does it take for the concentration of the reactant, [A], to drop to 6.25% of the original concentration?
What is the value of the rate constant for this reaction, what it the half life of the reaction under the conditions of this experiment
Calculate the percentage of He atoms at 100oC which have speeds in the range between 1200 m/s and 1300 m/s. Calculate the percentage of these He atoms that have speeds greater than 5000 m/s
Octane has a density of 0.692 g/mL at 20 C . How many grams of O2 are required to burn 19.0 gal of C8H18.
The temperature of the acid solution increases from 24.2 oC to 29.9 oC. Calculate deltaH for the reaction that occurred.
Determine the limiting reactant and the numbers of moles of Cu will be formed If you place .092 mol of iron filling in a solution containing .158 mol of Copper sulphate,?
Description of Intermolecular forces, What parts of the calcium chloride are attracted to what parts of the water molecule when calcium chloride dissolves
A refrigeration system contains 575 ml of a gas at 22 degrees C and 1.25 atm. The gas is compressed until it has a pressure of 2.00 atm and a temperature of -6 degrees C. What is the new volume of the gas in the system
what mass of ammonium chloride must be added to 2.00L of 0.450M ammonia to produce a buffer with pH=9.50 Kb=1.8E-5 for ammonia
Determining the limiting reactant and mass of the product - which reactant is the limiting reactant? What mass of product may be produced?
A 0.456 gram sample of an unknown monoprotic acid (let's call it HZ) was dissolved in some water (you pick the amount). Then the acidic solution was titrated to the equivalence point with 32.5 mL of 0.174 M KOH.
a certain organic compound was burned producing 1.481 g of co2 and 0.303 g of h2o. the mass of the original sample was
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