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Would the calculated value of k, the true rate constant, be in error if the concentration of dye was actually doubled the value you were told? Explain your answer.
at 350 k kc 0.142 for the reaction 2brclg br2g cl2g an equilibrium mixture at this temperature contains equal
a sample of oxygen gas o2 is collected over water h2o at 25 0c temperature and a total pressure of 654 torr. the volume
the compounds magnesium oxide (MgO) and calcium sulfide (CaS) is 82.1% by mass calcium sulfide . The compound calcium sulfide is 55.6% by mass calcium. Calculate the mass (g) of calcium in the mixture.
A typical serving of cheddar cheese contains 176 mg of sodium. How many moles of sodium are contained in this amount of cheddar cheese
in a test on the vaporization of water into air in a wetted-wall column the following data were obtained tube diameter
Calculate the Energy of dissolving in kilojoules/mole if 2.56 grams of CaBr2, calcium bromide, are dissolved in 50 mL of water in a calorimetric cup with a temperature rise of 4.5° C
What is the Cl ? concentration just as Ag2CrO4 begins to precipitate when 2.0 M AgNO3 is slowly added to a solution containing 0.048 M Cl ? and 0.048 M CrO42-
The enthalpy of solution for a solid with approximately equal delta h values for each of the steps involved in the solution formation process is
A buffer solution is 1.0 M in HF (Ka=6.8*10^-4) and 2.0 M in NaF. What is the pH of this solution after the addition of 0.4 mol NaOH to 1.0 L of this buffer solution
use the factor label method to determine what quantity of 5.00x10 -3 M EDTA would be needed to mtitrate ml of water containing .0124 g of calcium carbonate
A horse of mass 218 kg pulls a cart of mass 238 kg.The acceleration of gravity is 9.8 m/s2 .What is the largest acceleration the horse can give if the coefficient of static friction between the horse's hooves and the road is 0.842.
draw the lewis structures for these species. Do these representations account for the variation in bond distance
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