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Problem- How long (in minutes) will it take to electroplate out 53g of Aluminum Metal from a solution of aluminum (III) ions using a current of 14.94 amps
Please carry out what you can and illustrate your work so I can follow. Thanks
When 4g of sodium hydroxide (NaOH) was dissolved in 100g of water, a value of 10C was obtained for ?T. Calculate the value (calories) for the heat of solution of 4g of NaOH.
for a particular reaction deltahdeg is 20.1 kj and deltas is 45.9 jk. assuming these values change very little with
For your unknown titration, indicate whether the pH at the equivalence point should be equal to 7.0, greater than 7.0, or less than 7.0. Explain your choice, including the appropriate balanced net ionic equation.
Define why the pKa at infinite dilution increases for some compounds as well as decreases for others when compared to the pKa at finite dilutions.
Nuclides below the valley of stability can become more stable through which of the following processes
A heat exchanger is used to transfer heat from a steam stream to a chlorine gas stream. 100 kg of steam at 1 bar and 400°C enters the heat exchanger and leaves the exchanger as saturated steam at 1 bar. Chlorine gas enters the exchanger at 1 bar a..
Calculate the theoretical yield of C2H5Cl when 139g of C2H6 reacts with 219g of Cl2, assuming that C2H6 and Cl2 react only to form C2H5Cl and HCl.
A 136.6 mg sample of a crushed Vitamin C tablet was dissolved in 40 mL of H2SO4 and 20 mL of water. Two grams of KI and 25.00 mL of 0.0155 M KIO3 solution was added, and the mixture titrated to a starch endpoint.
What is the concentration of X when the potential is 0.0490 V? Assume that the electrode follows the Nernst equation, the temperature is at 25°C, and that the activity coefficient of X is 1.
Problem- Acetyl-CoA and succinyl-CoA are both high-energy thioesters, but their chemical energy is put to different uses. Explain how the chemical energy is used in the two cases.
Each was treated with standard Ca 2+ containing 20 micrograms/mL, diluted with water and analyzed by AA. Construct a std addition graph and use method of least squares to find x-int. and its uncertainty. Determine wt% Ca in Cheerios and its unce..
Betty, in a hurry to finish part 2 of the experiment, did not let the NaOH solution from part 1 cool at all. She just added it to the HCL solution and took the average temperature as the initial temperature of the mixture.
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