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The Ksp for calcium sulfate is 7.1 x 10^-5. What is the concentration of Ca^2+ in equilibrium with CaSO4(s) if [SO4^2-] = 2.0 x 10^-2 M?
Calculate the molarity of each of the following solutions(a) 29.0 g of ethanol (C2H5OH) in 545 mL of solution.
If the rod has a diameter of 1000 inches and we want to cut a 1.00 kg section of the rod. How many cm long should it be?
The activity of a radioactive sample is the number of nuclear disintegrations per second, which is equal to the first-order rate constant times the number of radio-active nuclei present.
What is the value for the rate constant, k? What is the concentration of urea in this solution after 4700 seconds if the starting concentration is 0.495 M?
what is the major type of force that must be overcome to allow each of process below
what is the difference of the KBR specrtum in % transmittance and absorbance. and btw wavenumber and wavelength
What is the frequency factor, A? /(M · s) (C) Predict the value of the rate constant at 73°C. /(M · s)
Calculate molality and mass percent of alcohol in the mixture. A solution of ethanol, C2H5OH, in water has a concentration of 1.996 mol L-1. At 20.0 ºC its density is 0.9677 g mL-1
Starting with only the solid, it is found that at 40C the total gas pressure (NH3 and CO2) is 0.33 atm. Calculate the euilibrium constant Kp/
Calculate tthe freezing point in centigrade units of a soluiton consisting of 685 grams of ethylene glycol dissolved
what mass of magnesium will react wait a 500.0mL container of oxygen at 150.0 degrees Celsius at 70.0 kPa?
A 195mg sample of a non-electrolyte isolated from throat lozenges was dissolved in enough water to make 10.0mL of solution at 25 degrees Celsius. The osmotic pressure of the resulting solution was 4.83atm. Calculate the molar mass of the compound.
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