Mass percent composition of aluminum in aluminum oxide
A 4.78g sample of aluminum completely reacts with oxygen to form 6.67g of aluminum oxide. What is the mass percent composition of aluminum in aluminum oxide?
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What is the percent yield of a reaction in which 266 g phosphorus trichloride reacts with excess water to form 134 g HCl and aqueous phosphorus acid (H3PO3)
A homogeneous coarse sand deposit has a water table at 10 m depth. The water coefficient of permeability of the sand is found to vary significantly with height above the water table even though the sand deposit is homogeneous.
How many moles of potassium chloride are produced from 119 g of potassium bromide? how many grams of potassium chloride can be produced from 300. g each of cl2 and KBr?
A solution of ammonia and water contains 3.20×1025 water molecules and 8.10×1024 ammonia molecules. How many total hydrogen atoms are in this solution?
C2H4(g) + O2(g) CO2(g) + H2O(g) How many moles of O2 would be required to react with 0.410 moles of C2H4 in the above unbalanced reaction?
A direct shear test is performed on a saturated specimen of loose sand. A normal stress equal to 100 kPa is applied and a maximum shear stress of 75 kPa is measured in the shear test.
If the inert gas Argon gas in a steel cylinder is at a pressure of 9732.0 mmHg, what is the pressure of the argon gas in each of the following pressure units?:
If, in a certain experiment, over a specific time period, 0.0039 mol PH3 is consumed in a 1.8-L container each second of reaction, what are the rates of production of P4 and H2 in this experiment?
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