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1. What is the standard free energy change for the reaction H2 + 2 Ag+(aq) → 2 H+(aq) + 2 Ag(s)? The standard potentials are 2 H+ + 2 e- → H2 (0 V)Ag+ + e- → Ag (0.7994 V) Answer in units of kJ.
2. Consider two hypothetical metals, X and Y,which can exist as metal ions X2+ and Y3+,respectively. For these two metals, the standardreduction potentials areX2+ + 2 e- → X E0 = -0.850 VY3+ + 3 e- → Y E0 = 1.800 VCalculate Ecell for the reaction3 X(s) + 2 Y3+(0.130 M) →3 X2+(0.0170 M) + 2 Y(s).Answer in units of volts.
calculate the molarity of h3o in a solution with oh-1.00x10-8 moll. is the solution acidic basic or
When a carton of milk spoils, a chemical transformation has occurred. Explain what indicates that this is a chemical transformation and not a physical transformation.
for ammonia, Kb is 1.8*10^-5, to make a buffered solution with pH of 10.0, the ratio of [NH4+] to [NH3] must be
A student determine the melting point of a substance to be 85.2 degrees Celsius. If accepted value is 53.7 degrees Celsius , the percent error in her determination was?
A) Amonium phospahte (NH4)3PO4 is water insoluble b) A precipitation reaction will occur in the following reaction AgCLO4 (aq) + CaBr2(aq) c) Ba(OH)2 is a strong acid d) Ba(OH)2 is a strong electrolyte
If doing by hand, please write dark onpaper before scanning. Balance and do total net ionic equations
Calculate the MM of MgNH4PO4 · 6H2O. Assuming 100% theoretical yield, how many grams of P2O5 can be produced from 35.0 grams of PO43-?
If the initial temperature of the water in the calorimeter was 20.25 °C, calculate the calorimeter constant (in J/K) for the coffee cup calorimeter.
A carbon-hydrogen-oxygen containing compound yields 1.029 g CO2 and 0.198 g H2O in a combustion analysis( note that this means O2 was added the overall reaction) what is the empirical formula? if the Molar mass is 138.16 what is the molecular form..
A perfect gas has a constant volume heat capacity of C R V m = 1.5×R, . Calculate q and w for the process where 4.50 mol of this gas is heated with a 12 W heater for 400 seconds at a constant volume.
3 enclosed flasks with different volumes have 50 ml of h20 at the temperature of forty degree celsius volume of flask 1
What volume of 0.20 M BaCl2 is required to react completely with 25.0 mL of 0.600 M Na2SO4. This is the net ionic equation for the reaction
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