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A copper cathode with an initial mass of 10.77 g is placed in a solution of CuSO4. After current has passed through the electrode for 15.0 minutes the cathode has a mass of 12.89 grams. Determine the amount charge (in Coulombs) that has passed through the electrode.
If composite, define each simple sub-system and the internal restraint. If the vessel is shaken vigorously. Is the system then a simple or composite system?
3)Which statement describes the net ionic equation obtained between NaCl(aq) and KBr(aq). A) The net equation is Na+(aq)+ Br+(aq)= NaBr(s) B) All spectator ions cancel out, therefore there is no reaction.
Draw the major product of the 3,4 methyl 2 hexanol alcohol dehydration in the presence of H2SO4. Use the Zaitsev rule to predict the major product when necessary.
Calculate the ph when 47.0 mL of 0.309 M of a certain monoprotic weak acid, HA, is mixted with 47.0 mL of 0.309 M of sodium hydroxide solution
Draw and completely label a flow chart for this system, In a process for concentrating 1000kg of freshly extracted orange juice containing 12.5 wt% solids, the juice is strained, yielding 800kg of strained juice and 200kg of pulpy juice.
Why is this important and if this step was not done, how could this change your results (in other words what specifically would happen to the Ksp value?
What are the effects of temperature, molarity, surface area, nature of the reactants, and the presence of a catalyst on the reaction rate of Zn(s)+2HCl(aq)-> ZnCl2(aq)+ H2(g)
the fired crucible is handled with oily fingers before its mass measurement. subsequently in part b.1 the oil from the
Consider the reaction when aqueous solutions of sodium acetate and potassium sulfide are combined.
1.00 mol HF and 0.500 mol NaOH are both dissolved in water making 1.00L solution. Calculate the pH of the solution
A reaction has an activation energy of 40 kJ/mol. What happens to the rate if you increase the temperature from 70 C to 80 C? Does the rate increase by
Calculate the pH when 4.73 g of HCOONa is added to 211.0 mL of 0.50 M formic acid, HCOOH. Ignore any changes in volume. The Ka value for HCOOH is 1.8 x 10-4.
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