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"A solid phosphorus pentabromide (PBr5) is formed from solidphosphorus (p4) and liquid bromine (Br2) according to the followingbalanced equation:P4 (s) + 10 Br10 (l) --------> 4PBr5(s) How many grams of PBr5 is formed from 31.0 grams of phosphorus and 154 mL of bromine? Density of Br2 = 3.12 g/ ml? How many grams of the excess reactant will be leftover?"
The pH difference across the membrane of a glass electrode is 3.83. How much voltage is generated by the pH gradient at 25 degrees Celsius and 37 degrees Celsius
A weather balloon is filled with 5.0 liters of helium at 27C and 1.0 atm. what volume does the balloon have when it has risen to a point in the atmosphere where the pressure is 60 torr and the temperature is -160 C
If a solution is made by adding 83 grams of sodium hyroxide to 750 ml of water what is the percent by mass of sodium hydroxide in this solutions ?
Calculate the minimum concentration of Mg2+ that must be added to 0.10 M NaF in order to initiate a precipitate of magnesium fluoride. (For MgF2, Ksp = 6.9 ? 10-9.)
how many liters of water can be made from 55g of oxygen gas amp an excess of hydrogen at a pressure of 12.4 atm amp a
Draw the three different isomers according to the number of C atoms in their main chain.
the thermochemical equation for the combustion of butane is c4h10g 132o2g --gt 4co2g 5h2ol delta h -2877kjwhat is
What is the mass (in grams) of the precipitate when 8.05 g of barium nitrate reacts in solution with excess sodium carbonate
How many moles of solid Ba(N03)2 should be added to 300ml of 0.20 MFE(N03)2 to increase the concentration of the N03 ion to 1.0M. can you please show steps
If 25.0 ml of 0.150 M Ba(OH)2 is required to react completely with 45.0 ml HCl solution, what is the molarity of the HCl(aq)
1) The standard potential of the cell Ag(s)|AgCl(s)\\Cl-(aq)||Ag (aq)|Ag(s) is 0.58 V at 25 °C. Calculate the equilibrium constant for the cell reaction.
What is the molecular geometry of a molecule with 4 outer atoms and 2 lone pairs on the central atom
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