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A 15-gram sample of neon is placed in a sealed container with a constant volume of 8.5 liters. If the temperature of the container is 27ºC, which of the following expressions gives the correct pressure of gas? The ideal gas constant, R, is 0.08 L·atm/mol·K.
What is the pH of a solution prepared by mixing 50.0 mL of 0.10 M methylamine, CH3NH2, with 20.00 mL of 0.10 M methylammonium chloride, CH3NH3Cl
In a reaction, 34.6 g of chromium(III) oxide reacts with 12.3 g of aluminum to produce chromium and aluminum oxide. If 23.7 g of chromium is produced, what mass of aluminum oxide is produced
Ammonium phosphate is an important ingredient in many fertilizers. It can be made by reacting phosphoric acid with ammonia . What mass of ammonia is consumed by the reaction of of phosphoric acid? Round your answer to significant digits.
what would happen to a glyceride, if reacted with hydrogen in the presence of a catalyst and at elevated temperature and pressure
to prepare 5.0 l of a 3.50 m solution of potassium hydroxide koh how many grams of potassium hydroxide must be
For propane, C3H8, the standard enthalpy of combustion of the gas is -2220 kJ/mol and the standard enthalpy of vaporization of the liquid is +15 kJ/mol. Calculate the standard enthalpy of combustion of the liquid.
A solution is made by dissolving 0.679 mol of nonelectrolyte solute in 871 g of benzene. Calculate the freezing point and boiling point of the solution.
how many grams of sodium oxide will be formed if 46 grams of sodium are used in the reaction. 4Na + O2 yields 2Na2O
What is the rate of formation of carbon dioxide over the specified time period in this reaction
A solution is made that is 1.1×10^?3 M in Zn(NO3)2 and 0.150 M in NH3. After the solution reaches equilibrium, what concentration of Zn2+(aq) remains
compounds such as naphthalene and 14-dichlorobenzene find use as mothballs since they sublime at a slow rate at
Who proposed the law of conservation of mass. Who amended the original law of law of conservation of mass. How metal sodium reacts with a non metal. What is the law of constant composition or proportion.
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