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A solution of ammonia and water contains 1.50×1025 water molecules and 5.50×1024 ammonia molecules. How many total hydrogen atoms are in this solution?
Does this verify that only a single detergent compound is in the extract. What specifically can you do to gain more information about the composition of the shampoo extract
A sample of of H2O with a mass of 46.0 grams has the temperature of 100C ,how many jolues of energy are necessary to boil the water.
A gas sample containing 1.47 mol at 25°C exerts a pressure of 401 torr. Some gas is added to the same container, and the temperature is increased to 50.°C. If the pressure increases to 800. torr,
a zero-order reaction has a constant rate of 3.50times10-4 mrm s. if after 65.0 seconds the concentration has dropped
the specific heat capacity of solid ice is 2.09 jgmiddotdegc and the specific heat capacity of liquid water is 4.18
Measured properties are characterized by their accuracy and their precision. When using measured values in calculations, it is most important to note that precision can neither be gained nor lost. The rules for significant figures usually obey thi..
The Kb of ammonia is 1.8 x 10-5. What is the percent ionization of a solution of ammonia, 0.50 mol L-1 NH3, that contains 0.020 mol L-1 of ammonium nitrate, NH4NO3
A perfume company wants to dispense 19.2 quarts of a new fragrance into small vials. How many 15.0 mL vials can they fill (rounded to the nearest full vial)
Compute the change in entropy of the universe if water vapor of one mol condenses to liquid water at the temperature of 100°C in a thin flask in an ambient laboratory temperature of twenty five degree celsius.
a 4.50-g sample of licl at 25.0 c dissolves in 25.0 ml of water also at 25 c. the final equilibrium temperature of the
What is the limiting reactant? How many grams of calcium sulfate can be produced? What is the percent yield of calcium sulfate?
Initial temperature of rod = 100 °C; mass of H2O in calorimeter =130 g; cH2O = 4.184 °C g . (Assume the calorimeter has negligible heat capacity).
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