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Question - The chemical reaction that takes place in non-rechargeable batteries is a redox reaction between Zn (s) and CuSO4 (aq) to give Cu (s) and ZnSO4 (aq). When 1.725 g of Zn (s) are reacted with 7.32 mL of 4.33 M CuSO4 (aq), how much Cu (s) is expected?
Write solution with complete explanation of required steps
The equilibrium constant for a certain reaction decreases from 8.51 to 3.3e-2 when the temperature increases from 24°C to 73°C. Estimate the temperature where K = 1.00 for this reaction. T in Kelvin.
Calculate the pH of the solutions having the following [H+]: a) 0.57 M pH=? b) 1.84 M pH=? c) 3.7*10^-5 M pH=?
A 50.00-mL solution containing NaBr (FW=102.894g/mol) was treated with excess AgNO3 to precipitate 0.2146 g of AgBr (FW= 187.772g/mol). What was the molarity of NaBr in the solution
Explain what is the extension value of L of a 1D-box containing an electron, if the wave number of the transition from state n=2 to state n=3 is 1.0 cm-1
Alkali metals are extremely reactive with water. Suppose I give you a 55.50 g chunk of cesium and you throw it into a lake. When it reacts with water to form cesium hydroxide and hydrogen gas
If the purity of compounhe Z is 87% and the reed value for its molar extinction coefficient is 9200M-1 cm-1 at 605nm. What should measure as the E of this impure compund Z
Write out the additional equations you would need to consider. d. Confirm that the number of equations is equal to the number of unknowns.
a mixture containing only al203 fm 101.96 and fe203 fm 159.69 weighs 2.019 g. when heated under a stream of h2 ai2o3 is
when rinsing the walls of the e. flask during titrations with deionized water why does it have no effect on the
A sample of neon is collected at 2.7 atm and 12.0 oC. It has a volume of 2.25 L. What would be the volume of this gas at STP?
When 0.60 grams of a molecular covalent compound is dissolved in 10 grams of water, the freezing point of the soludion is -1.86 C. Given that the freezing point of pure water is 0 C and that the freezing point depression constant for water is 1.85..
The equation for the combustion of gaseous methanol is: 2CH3OH(g) + 3O2(g) ? 2CO2(g) + 4H2O(g) Estimate the ?H°rxn per mole of methanol combusted, using the bond energy data provided below
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