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In the reaction below, 2.41 atm each of H2 and Br2 were placed into a 1.00 L flask and allowed to react:H2(g) + Br2(g) <=> 2 HBr(g)Given that Kc = 52.2, calculate the equilibrium pressure of H2.
A chemist dissolves 0.9 g of an unknown monoprotic (one acidic H) acid in water. She finds that 14.6 mL of 0.426 M NaOH are required to neutralize the acid.
Determine which metal will reach the lowest temperature If the same amount of heat is added to both the metals?
a solution is prepared by dissolving 4.21 g of a nonelectrolyte in 50.0 g of water. If the boiling point increases by 0.203 C what is the molar mass of the solute? The boiling point elevation constant for water is 0.512 C/.
A chemist wants to make 5.5L of a 0.280M CaCl2 solution.What mass of CaCl2 (in g ) should the chemist use
The Br-F bond distance in the interhalogen compound BrF is 1.76 Å. Use this information to estimate the average
Calculate the vapor pressure lowering of a solution of 2.80 g of aspirin (molecular weight = 180.15 g/mol) in 45.0 g of methanol (CH3OH) at 21.2°C.
A student mixes 175.0 grams of water at 62.31oC in a coffee-cup calorimeter with 175.0 grams of water at 25.84oC. The final temperature of the mixture is 41.71oC.
Explain how to determine exclusion limit of a gel of unknown origin.
acidifying with dilute H2SO4 and titrating with a 0.01804 M KMnO4 solution. 33.15 mL of the permangate solution was needed to reach the end point of the titration. What is the actual molar concentration of the H2O2 solution?
Silver has two isotopes and an average atomic mass of 107.87 amu. If 48.18% of Ag exists as Ag-109 (108.9047 amu), what is the identity of the other isotope?
Determine the free energy change associated with the above reaction (you might find it easier to first consider the movement of the two components of the system separately)
How many moles of NH3 can be produced from the reaction of 0.5 moles of N2 with that amount of H2?
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