Determine molar concentration of the ammonia
If 18.4 mL of 0.800 M~rm HCl solution are needed to neutralize 5.00 rm mL of a household ammonia solution, what is the molar concentration of the ammonia?
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The rate constant for the reaction at 30oC is 0.120 L*mol-1*s-1. How long does it take an initial concentration of 0.150 mol/L to reduce to one-quarter the initial concentration?
A gaseous mixture of and contains 36.8 nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 685 ?
The mixture of hot iron and aluminum is then dropped into 96.0 g of water at 20.7°C. Calculate the final temperature of the metal and water mixture, assuming no heat loss to the surroundings.
A student reported the following % for his unknown mixture: 25% NH4Cl, 30% NaCl, and 50% SiO2. Assuming that the calculations were done correctly, explain the students error.
With this, and assuming a space crew of five, how much LiOH must be taken in a seven day mission? Take into consideration a safety factor of 200%.
Calculate the pH at the equivalence point for the titration of a solution containing 1250.0 mg of hilariamine (MW = 104.75 g/mol, Kb = 7.1×10-4) with 0.1000MHCl solution.
What volume and mass of steam at 100 degrees C and 1.00 atm would, during condensation, release the same amount of heat as 100.cm^3 of liquid water during freezing? What do you note, qualitatively, about the relative volumes and masses of steam an
A sample of H½O with a mass of 46.0 grams has a temperature of -58.0 àC. How many joules of energy are necessary to melt 46.0 grams of ice? (Use 2.1 J/gàC for the specific heat of ice,
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