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1) Mg2C2O4(s) → 2Mg2+(aq) +C2O42-(aq) Ksp = 8.6 x 10-5What is Qsp if 100 mL of 0.048 M Mg(N03)2 is added to 50 mL of 0.025 M Na2C2O4?
2) 2 L of an unknown concentration of the weak base ammonia are standardized. 50.0 mL of the basic solution are titrated with 0.200 M HCl. The end point occurs after 84.1 mL of acid are added. What is the concentration of ammonia in the 2 L flask?
ammonia will react with oxygen in the presence of a copper catalyst to form nitrogen and water. from 164.5degc to
celsius absorbs 281kJ of heat from a mountain climber's stove at an elevation where the boiling point of water is 89 degrees celsius, how many kJ are required to boil the water?
Identify the mass spectral (MS) peaks you would expect for 4-Heptanone (M+ and m/z for all fragments). Just FYI, the professor said
A 13.8-g piece of zinc was heated to 98.8 oC in boiling water and then dropped into a beaker containing 45.0 g of water at 25.0 oC. When the water and metal come to thermal equilibrium, the temperature is 27.1 oC. What is the specific heat capacit..
Calculate the theoretical yield of Nylon 6,6. State the limiting Reagent. Is Hydroquinone sterically hindered
the piston of an internal combustion engine compresses 434 ml of gas. the final pressure is 15 times greater than the
Problem- Four alkenes are formed from the E1 reaction of 3-bromo-2,3-dimethylpentane and methoxide ion. Draw the four structures.
What is the enthalpy of vaporization ?
A problem occurred and the mixture was acidified to a pH of 2 with HCl and there was no precipitate. Explain what went wrong and write an equation for the reaction that caused the problem. How the product be recovered
A perfect gas has a constant volume molar heat capacity of CV,m = 1.5× R, and a constant pressure molar heat capacity of Cp,m = 2.5× R. For the process of heating 4.50 mol of this gas with a 12 W heater for 400 seconds, calculate
Problem- The hydrogen atom is not actually electronegative enough to form bonds to xenon. Were the xenon-hydrogen bond to exist, what would be the structure of XeH4
Sodium phosphate is added to a solution that contains 0.0014 M aluminum nitrate and 0.078 M calcium chloride. The concentration of the first ion to precipitate (either Al3+ or Ca2+) decreases as its precipitate forms
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