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What volume, in liters, of O2 at 35 degrees C and 1.19 atm can be produced the decomposition of 50.0 g of KNO3? 2KNO3(s)-->2KNO2(s)+O2(g).
how many atoms of oxygen per second are colliding with each square centimeter of the surface? The residual gas in the system has the same composition as air, and the temperature is 295K
spontaneous chemical reactions produce products which are more energetically stable than the reactants which form them. A strong acid reacts with a strong base to produce water and the free ions of a salt.
What is the ppm concentration? The molar extinction coefficienet is 87,000 M^-1cm^-1 and the molecular weight is 407.98 g/mol. The density of water is 1.00 g/mL.
The solubility of oxygen gas in water at 25°C and 1.0 atm pressure is 0.041 g/L. What is the solubility of oxygen in water at 8.4 atm pressure?
The initial mass of a radioisotope is 10.0g. If the radioisotope has a half-life of 2.75 years, how much remains after four half-lives?
A careless student, Will Bobble, misread the label on a bottle of 10 M sodium hydroxide and used it (rather than 1 M NaOH) to dissolve his vanillin. Then he stored the solution and left the lab early to catch a ride home. During the next lab perio..
gas has a volume of 0.40 L and a pressure of 6.0 atm, what is its kelvin temperature?
How many grams of HCl are produced according to the following equation, H2 + Cl2 = 2 HCl, when 4.0 g of hydrogen reacts
determine the equilibrium concentrations of all three compounds if the starting concentrations of both reactants are .00408 M, wiht [HOCl]=0.000 M.
a student placed in an unknown sample plate thin layer chromatography and develops in dichloromethane as solvent. only there is a spot whose Rf is 0.95. This indicates that the unknown material is a pure compound
Calculate the maximum mass of carbon dioxide that could be produced by the chemical reaction. Round your answer to significant digits
At what pH will this occur? Ignore complex formation and potential redox reactions.
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