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How do I write a balanced equation for oxidation of Pb (0) to Pb2+ by O2 under basic conditions? How do I calculate the standard cell potentia?
2.00g of a mixture of NaHCO3 as well as KCLO3 requires 100ml of 0.1N HCl for complete neutralization. The weight of KClO3 present in the mixture is
The rate constant (k) for a reaction was measured as a function of temperature. A plot of ln k versus 1/t (in K ) is linear and has a slope of ?1.13×10^4 K.
A diamond weighs 5.35 ounces. How much is it worth if the going price of diamonds is 627 dollars per carat? 1 carat is equal to 200 milligrams
Do a calculation to check the claim that to fully neutralize 17,000 tons of CaCO3 would require enough 0.0005 M H2SO4 to fill 8 millions swimming pools.
Find the true mass (mtrue) of pentane when the mass weighed in air is 13.540 g. Assume the air density is 0.0012 g/mL and the balance weight density is 8.5 g/mL.
a 0.573g sample of nonvolatile solute is added to 15.6g of naphthalene and the mixture warmed until melted. the
question a student dissolves some ammonium nitrate nh4no3 in water notices that the beaker gets cooler as the solid
Tropylium cation satisfies the 4n + 2 rule. What do you think might occur of trityl fluoroborate was placed into solution with 1,3,5-cycloheptatriene(also known as Tropylium Fluoroborate)
If 37.0 mL lead(II) nitrate solution reacts completely with excess sodium iodide solution to yield 0.700 g precipitate, what is the molarity of lead(II) ion in the original solution?
A pure substance can exist simultaneously as a solid, liquid, and vapor only at: 1. the critical point 2. at the triple point 3. at the boiling point 4. at no temp. 5. at all temp.
100.0 ml of 0.100 M acetic acid is placed in a flask and is titrated with 0.100 M sodium hydroxide. An appropriate indicator is used. Ka for acetic acit is 1.7 x 10^-5. Calculate the pH in the flask at the following points in the titration.
A gas originally at 27 degrees celsius and 1.00 atm pressure in a 3.9 L flask is cooled at constant pressure until the temperature is 11 degrees celsius. determine the new volume of the gas and express your answer in Litre.
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