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A gas mixture contains each of the following gases at the indicated partial pressures: N2, 221 torr; O2, 131 torr; and He, 131 torr.
Calculating the concentration of the acetate ion when dissociation of acetic acid occurs in water and over varying pH conditions?
There are 0.30 mol SrCl2 in every liter of solution. Calculate the number of moles of SrCl2 that were added. What is the limiting reactant?
How many ATOMS of xenon are present in 3.25 moles of xenon trioxide. How many MOLES of oxygen are present in 9.37E+22 molecules of xenon trioxide
The production of iron and carbon dioxide from Iron (3) oxide and carbon monoxide is an exothermic reaction? how many kj of heat are produced when 3.40 mol Fe2O3 reacts with excess of CO.
Which of the following metals will be oxidized by Pb(NO3)2: Zn, Cu, Fe? Write the balanced molecular, ionic and net ionic equations for the reaction.
When 7 mL of a solution containing 3 M KNO3 is diluted to 21mL, a dilute solution is formed. What is the NO3- concentration in 10mL of the dilute solution?
The second order reaction for the breakdown of nitric oxide to its elements has the rate constants of 0.0796 L/mol-s at 737 C and 0.0815 L/mol-s at 947 C. What is the activation energy of this reaction?
Antimony has two naturally occurring isotopes, Sb-121 (mass = 120.9038 amu) and Sb-123 (mass = 122.9042 amu). Calculate the percent abundances of these isotopes of antimony
How much heat (in kJ) is released when 15.0 L of CO at 85 degrees C and 112 kPa reacts with 18.5 L of H2 at 75 degrees C and 744 torr?
An equilibrium mixture of SO2,O2 and SO3 gases at 1500k is determined to consist of 0.244 mol/L SO2, 0.172 mol/L O2 and 0.56 mol/L SO3.
A 220 kiln is used for vitrifying ceramics. It is currently operating at 955, and the pressure is 0.9750 . How many moles of air molecules are within the confines of the kiln
If 10.00 mL of 0.050M KI solution is mixed with 40.00 mL of other reagents what would be diluted concentration of KI
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