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A steel tank has a volume of 438 L and is filled with 0.885 kg of O2 at 21°C. What is the pressure within the tank?
What is the resultant pressure if 3.7 mol of ideal gas at 273 K and 1.97atm in a closed container of constant volume is heated to 446 K.
What is the percent yield of a reaction in which 260. g phosphorus trichloride reacts with excess water to form aqueous phosphorus acid (H3PO3) and 127 g HCl?
Quartz, which contains one silicon atom and two oxygen atoms per formula unit, is the second-most-common mineral on Earth after feldspar
A 33.0 g sample of a nonelectrolyte was dissolved is 700. g of water. The solution's freezing point was -2.84°C.
Explain how some solids (compounds that are solids at room temperature) can be analyzed by gas chromatography. Also, how can they be introduced into the injector port and column
mercury barometer with an inner diameter of 10.00 mm? Recall that the area of a circle is A = ? r2 and that 1 N = 1 kg m/s2.
A sample of nitrogen has a volume of 605 mL at a pressure of 84.77 kPa. Assuming that the temperature is constant, at what pressure will the gas has a volume of 0.766 L
The m for this nuclide indicated an excited nuclear state that decays to the ground state by gamma emission.
From the Mn concentrations (3.56ppm and 3.71ppm) and uncertainty
The heat of formation of KCl(s) is -436.7 kJ/mol and the heat of formation of KCl(aq, 1 m) is -419.5 kJ/mol. Determine the heat of solution of KCl.
Calculate the mass percent of a solution that is prepared by adding 61.4 g of rm NaOH to 413 g of {rm H_2O}.
What is the molar concentration of chloride ion in the final solution? (assuming complete dissociation) 2) What is the percentage yield if 122.5 mg of a light blue-green solid is collected after 100.00 mL of this solution is combined with 25.0 mL ..
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