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P4(s) + F2(g)-> PF3(g) What mass of F2 is needed to produce 187 g of PF3 if the reaction has a 80.1% yield?
What volume (in mL) of a 1.420M NaOH solution is required to titrate 25.0mL of 4.50M HCl solution.
Solubility in water in hexane, when mixed water and ether(diethyl ehter), why two layers will form ? Which layer will be top layer why?
Calculate the molarity of each of the following solutions(a) 29.0 g of ethanol (C2H5OH) in 545 mL of solution.
What mass of sucrose should be combined with 493 g of water to make a solution with an osmotic pressure of 9.00 atm at 320 K? (Assume the density of the solution to be equal to the density of the solvent.)
Explain what it means that the atomic mass of naturally occurring Ag, is a mixture of its two isotopes forms, is 107.868 u.
what will be the theoretical yield of bromobenzene in given reaction as C6H6 + Br2 → C6H5Br + HBr also find out percentage yield when actual yield of bromobenzene was found 56.7 g?
What are some reasons why there would be a difference between the expected and actual values for the moles of copper oxide produced from heating copper in the air.
Calculate the cell potential after the reaction has operated long enough for the [Al3+] to have changed by 0.32 mol/L. (Assume T = 25°C.)
Calculate the molarity of a solution of glycerol made by dissolving 59.000 mL glycerol at 15 degrees celcius in enough water to make 380.00 mL of solution
The rate constant increases by a factor of 2.00 when the temperature is increased from 80 C to 115 C. estimate the arrhenius activation energy.
What volume of the solution must be used to make 800 mL of 0.15 M. potassium permangate from a 0.20 M. potassium stock solution.
How many mL of 0.525M calcium chloride are needed to obtain 5.00x10 22 chloride ions.
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