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If 1.8 moles of nitrogen gas and 5.0 moles of hydrogen gas are brought together to react according to the following equation: 3 H2 + N2 -----> 2 NH3
A person exhales about 5.8 x 102L of carbon dioxide per day (at STP). The carbon dioxide exhaled by an astronaut is absorbed from the air of a space capsule by reaction with lithium hydroxide, LiOH.
How do the PHs of the buffered solution compare? Suppose you have two buffered solutions and the buffered solution 1 consists of 5.0 M HA and 5.0 M NaA; buffered solution 2 is made of 0.050 MHA and
Determine the molarity of a solution prepared by diluting the 165 mL of 0.688M calcium chloride to 925.0 mL. Calcium chloride is used to melt ice and snow on roads and sidewalks and t
Discuss how much heat will be given off when the 25.3 grams of hydrogen are used in this reaction? For the reaction 2H2 + O2 --->2H2O deltaH = -750 kJ.c
Identify the maximum work obtained from an electrolytic cell made from copper (II) sulphate solution assuming the conversion of copper (II) in solution to copper metal.
Write down the chemical reaction and determine the number of milliliters of 0.100 M NaOH needed to neutralize the 0.500g sample of potassium hydrogen phthalate.
Determine the volume need to reach the endpoint if a 50.00 mL a liquot of a 0.0500 M solution ofH2C2O4 was titrated with the 0.0500 M KMnO4 which absorbs strongly at the 525 nm(&epsi
If complete resolution of the peaks is not obtained, explain how pure samples of each component could be obtained by the preparative gas chromatography from a mixture of two components seven.
What is the specific heat capacity of molybdenum if a 237 g piece of molybdenum, initially at the100.0°C, is dropped into the 244 g of water at 10.0°C.
Determine the carbonate and bicarbonate alkalinities, in mg/L as CaCO3, of water having a total alkalinity of the 233.0mg/L as CaCO3 and a ph of 10.47.
Determine the numbers of grams of al2O3 can be formed from 9 grams of al and9 grams of O2? If 2.19 grams of compound x is burned, 7.4 of grams of CO2misformed, What percentage by weight of compound
Explain what mass O2 is needed to inflate it to the same size and pressure at the 5 degrees Celsius if 12.0 g of O2 is needed to inflate a balloon to a certain size at 27 degrees Celsius.
The hydrogen gas generated is collected over water at 25.0°C.The volume of the gas is 150 mL calculated at 1.00 atm. determine the number of grams of sodium used in the reaction.
Determine the numbers of grams of dry NH4Cl need to be added to 1.90 L of a 0.600 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.67? Kb for ammonia is 1.8 x 10-5.
Sodium acetate behaves as a strong electrolyte in an aqueous solution, yielding Na+ cations and CH3CO2- anions. A particular solution of sodium acetate has a pH of 9.07 and a density of 1.0085g/mL.
The specific heat of the water is 4.184 J/g C. Assume a solution density of 1.00g/mL. 20.12 grams of butane, C4H10, was combusted with oxygen in a bomb calorimeter.
Determine the numbers of kJ of energy are needed to change 1.00 m3 of pure water by the 1.0 degrees C? Assume a perfect system. The specific heat of the water is 4.184 J/gC and the density of w
Determine the numbers of mL of a .27M FeCl2 solution are needed to precipitate all of the Ag+ ions from 75mL of a .22M solution of AgNO3? Not really sure about precipitation so a thorough explanati
Determine the numbers of grams of AlCl3 are formed when the 355 mL of 1.65 M HCl solution are reacted with excess Al according to the reaction
A soluble iodide was dissolved in the water. Then an excess of silver (I) nitrate, AgNO3 wad added to totally precipitate out all of the iodide ion as silver (I) iodide, AgI. If 1.545 grams of
Calculate the mechanism behind the increase in light fastness of titanium dioxie pigment upon coating with phosphate/aluminum phosphate?
Determine the mass of sodium bicarbonate that will react exactly with 20.00mL of 0.25M nitric acid, Based on the equation.
Determine the mass percent of CuCl2 *2H2O in the original sample? A 2.634 g sample of impure CuCl2 * 2H2O was heated to drive off the water of hydration. The mass after heating was 2.125 g.
Determine the maximum wavelength of light capable of removing an electron for a hydrogen atom from the energy state characterized by the following.