Determine the percent yield of a reaction
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)
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When separated from a water solution,CuSO4 forms a hydrate with 5 water molecules per formula unit. If 45 g of anhydrous CuSO4 are dissolved in water, what mass of the hydrate could be recovered from the solution?
The partial pressure of O2 in air at sea level is 0.21 atm. Using Henry's law, calculate the molar concentration of O2 in the surface water of a mountain lake saturated with air at 20C and an atmosphere pressure of 650 torr.
If 1.60 mol of CS2 burns with 5.60 mol of O2, how many moles of the excess reactant will still be present when the reaction is over?
Calculate the coefficient of consolidation and the compression index of the clay. The recompression index of the clay can be taken as 10% of its compression index.
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?
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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