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Exactly 13.8 mL of water at 25.0 °C are added to a hot iron skillet. All of the water is converted into steam at 100.0°C. The mass of the pan is 1.20 kg and the molar heat capacity of iron is 25.19 J/(mol·°C). What is the temperature change of the skillet?
What is the molarity of a solution made by dissolving 6.64 g of sodium acetate in water and diluting to 750. mL. (molar mass NaC2H3O2 is 82.0 g/mol.)
Cl2(g) + F2(g) 2 ClF(g) Kc = 19.9 For the reaction forming ClF the initial concentrations are as follows: [Cl2] = 0.5 M ; [F2] = 0.2 M ; [ClF] = 7.3 M Is the reaction at equilibrium? If not, in which direction with the reaction shift to reach eq..
Write a balanced equation for the spontaneous reaction that would occur if a cell were constructed using a manganese metal electrode in a 1.00M solution of Mn(NO3)2 and an inert electrode
Predict whether zinc and silver react with 1 M sulphuric acid to give out hydrogen or not. Given that the standard potentials of zinc
What is the net ionic equation for the following redox reation in basic solution? CrO4{2-} oxidizesHSnO3{-} and reduces to CRO2{-}
If you know the balanced equtaion of a reation and the cange in concentration in one of the products or reactents, you can determinethe change in concentation of all the other products an reactants.
If the trend in second ionization energy for the elements from lithium to flourine isn't a smooth one. Forecast which of these electrons has the highest second ionization energy as well as which has the lowest and explain.
A drop of NaOH titrant adheres to the side of the buret between the initial and final readings for the titration.As a result of the `clean glass`error, will the molar concentration of the NaOH solution be reported as too high or too low
Calculate ΔHrxn for the combustion of octane by using enthalpies of formation from Appendix IIB in the textbook. The standart enthalpy of formation of C8H18 is -250 kJ/mol.
If the enthalpy change for the reaction is 21 kJ/mol, what is the minimum value of the change in entropy for the reaction. Please answer in J/K* mol
Rewrite the following unbalanced equations, changing them into balanced net ionic equations (assume that all reactions are in water solutions)
The standard enthalpy of formation of K+(aq) is -252.14 kJ/mol. How much heat is evolved when 0.1047 g of K(s) reacts with excess HCl?
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