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When heated to 350 at 0.950 , ammonium nitrate decomposes to produce nitrogen, water, and oxygen gases:
How many liters of water vapor are produced when 28.7 of decomposes?
How many grams of are needed to produce 11.2 of oxygen?
A sample of commercial concentrated hydrochloric acid is 11.8 M HCl and has a density of 1.190 g/mL. Calculate (a) the mass percentage, (b) molality and (c) mole fraction of HCl in concentrated hydrochloric acid.
calculate the pH of a soluion created by mixing 389.5 mL of .182 M HC4H7O2,
which ions in water make it 'hard'? is it possible to test for only one of these ions quantitatively in the presence of the other.
Calculate the number of grams of anhydrous sodium oxalate needed to prepare 250 mL of .04500 M sodium oxalate solution.
A sample of sodium reacts completely with 0.568 (kg) of chlorine, forming 936 (g) of sodium chloride. What mass of sodium reacted
the temperature of the solution increases to 26.5 C. Calculate the enthalpy change, Delta H, for this reaction per mole of X. Assume that the specific heat and density of the resulting solution are equal to those of water
calculate the amount of energy in kilojoules needed to change 243 g of water ice at -10 rm circc to steam at 125 rm
How many moles of oxygen are in a compressed cylinder that has a volume of 8.00 L at a pressure of 41.0 atm and at 25 degrees celcius?
what would be the effects when changing the eluting solvents
indicate whether aqueous solutions of each of the following solutes will contain only ions, only molecules, or mostly molecules and a few ions: a) NH4Cl, a strong electrolyte. b)ethanol, CH3-CH2-OH, a nonelectrolyte. c)HCN, hydrocyanic acid, a wea..
The oxide of which of the following metals should have the greatest lattice energy?
Calculate the work (in kJ) when 2.20 moles of methane react with excess oxygen at 384 K: CH4(g) + 2O2(g) ? CO2(g) + 2H2O(l) Hint
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