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A concentrated nitric acid solution has a density of 1.13 g/mL and is 4.95 M. Calculate the % HNO3 by mass in the solution
calculate the number of grams of isopropyl alcohol rubbing alcohol c3h8o which must be added to 275 g of water to
A 11.0-L helium tank is pressurized to 26.0 atm. When connected to this tank, a balloon will inflate because the pressure inside the tank is greater than the atmospheric pressure pushing on the outside of the balloon.
why is it best to cool the crucible and lid (and sample) in a desiccator rather than on the laboratory bench
Living wood has a carbon-14 specific activity of 15.3 disintegrations per minute (dpm) per gram of carbon. A wood sample taken from an object recovered at an archaeological excavation a specific activity of 7.10 dpm per gram carbon. what is the ag..
What is the heat of vaporization(kJ/mol) if it takes 3,452 J of heat to completely vaporize 2.68 moles of the liquid at its boiling point?
Benozoic Acid has a Ka = 6.3*10^-5. A 35.0mL sample of 0.130 M Benzoic Acid is titrated with 0.150M NaOH solution. Find the pH after 0.0mL NaOH is added.
What will happen to the equilibrium as OH- ions are added?
Which weak acid would be best to use when preparing a buffer solution with a pH of 9.70? An acid with Ka = 3.2 × 10^-5 An acid with Ka = 4.0 × 10^-7 An acid with Ka = 1.3 × 10^-11 An acid with Ka = 2.1 × 10^-10
Strychnine, C12H22N2O2, is a weak base. An aqueous solution of 0.0515 M strychnine solution has a pH of 10.48. What is the Kb for strychnine based on these measurements?
Determine the [OH-] of a solution that is 0.230 M in HCO3-. Also determine the pH of this solution.
When 1 gram of nitroglycern, C3H5(NO3)3, decomposes to form nitrogen gas, oxygen gas, gaseous carbon dioxide, and liquid water, 1.9 kcal of heat is evolved. How much heat is evolved per mole of gas formed in the decomposition of nitroglycerine?
If the solubility of calcium phosphate is 3.41*10^-5 g/l. How many liters of water are required to dissolve 1g of calcium phosphate
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