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how many N2 molecules can be produced after the explosion of 2.37 kg of NH4NO3? (Molar mass of NH4NO3 is 80.06 g/mol.)
Lakes that have been acidified by acid rain can be neutralized by liming, the addition of limestone (CaCO3 ). How much limestone in kilograms is required to completely neutralize a 3.8 x109 lake with a pH of 5.5.
The vapor pressure of water is 28.3 torr at 29°C then determine what is the partial pressure of oxygen collected if a reaction at that temperature produces Carbon Dioxide which is collected over water at a total pressure of 576 torr, ?
What volume of a 6.16E-2 M potassium hydroxide solution is required to neutralize 19.8 mL of a 0.107 M hydroiodic acid solution.
65.50 mL of 0.161 M HF is titrated with 0.1200 M NaOH. What is the pH at the equivalence point.
a buffer is prepared by mixing .200 mole of formic acid with .300 mole of sodium formate in a volume of 200 ml what is the initial ph.
The contents of one 80. lb bag of topsoil will cover 30. square feet of ground to a depth of 1.7 in. What number of bags are needed to cover a plot that measures 600. by 700. m to a depth of 1.5 cm.
Determine the limiting reactant and the numbers of moles of Cu will be formed If you place .092 mol of iron filling in a solution containing .158 mol of Copper sulphate,?
Calculate the molar mass of a vapor that has a density of 6.735 g/L at 13°C and 825 torr.
A water skier is pulled by a net force of 135 N and has an acceleration of 1.8 m/s2. What is the mass of the skier.
The heat of neutralization of HCl by NaOH is H°rxn = -56.2 kJ/mol. How much heat is released when 125 mL of 1.750 M HCl is mixed with 195 mL of 0.667 M NaOH.
In the laboratory, a student named Georgia weighed 5.05 grams of an unknown solid mixture containing benzoic acid, copper (II) sulfate and sand.
Suppose a 5.00 L sample of O2 at a given temperature and pressure contains 2.73 × 1023 molecules. How many molecules would be contained in 5.00 L H2 at the same temperature and pressure.
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