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Question- Balance the following reaction in basic solution. Identify the reducing and oxidizing agent. Show your workS2O8 -2 + Ni(OH)2 ? SO4 -2 + NiO2
I am need of complete solution for this problem please help- me out to get right solution
a sample of KHC2O4 weighing 0.717g was dissolved in water and titrated with 23.47 mL of an NaOH solution. caluculate the molarity of the NaOH solution.
a 160.0g sample of metal at 75 degrees c is added to 150.0g h20 at 15 degrees c. the temp. of the h2o rises to 19.5
determine the variation of temperature within the wall and the value of temperature at x=0.1m.
If you have 50 ml of a buffered solution of 0.15M HNO2 and 0.05M NaNO2, how many ml of 0.2M HCl can you add before the pH changes significantly
a.the density of liquid oxygen at its boiling point is 1.14 and its heat of vaporization is 213.nbsphow much energy in
Consider the following reaction in a closed reaction flask. If 1.50 atm of gas A is allowed to react with 0.500 atm of gas B and the reaction goes to completion at constant temperature and volume, what is the total pressure in the reaction flask a..
Approximately 35 mg of a dried brass sample (accurately measured) is put into a 250-mL Erlenmeyer flask. About 20 mL of H2O and 10 mL of concentrated HNO3 is added.
What would be the mathematical sign for the energy change (positive for endothermic or negative for exothermic) for each of the following processes. Explain the reasoning for each choice:
Thin layer chromotography it would be caffeine, but why? both have amide functional groups making them very polar, so why is caffeine more polar?
Question- The formation of azo compounds is a slow reaction, but the rate is often increased by raising the pH of the solution. Why does this help
Problem- Explain why shielding is more effective by electrons in a shell or lower principal quantum number than by electrons having the same principal quantum numbers.
calculate the change in ph caused by adding 10.0 ml of 2.24-m hcl to 370. ml of each of the following solutions. awater
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