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The half-life of carbon-14 is about 5700 years. If you left those 100 carbon-14 atoms to sit around for 5700 years, how many would you expect to decay during that time?
In Organic lab we are enabling trans to cis isomerizaton of E-1,2-dibenzoylethylene by irradiating the alkene with UV light.
How much heat is required to melt 15 grams of ice at 0C? How much heat is released when 100 grams of steam condenses at 100C? If a system of ice and water has a mass of 12 grams
Calculate the vapor pressure of a solution of 0.19 mol of cholesterol in 5.4 mol of toluene at 320 C. Pure toluene has a vapor pressure of 41 torr at 32oC. (Assume ideal behavior). Answers in torr.
Assuming no change in volume of the solution, determine the pH, the concentration of barium ions in the final solution, and the mass of solid formed Explain each and every step in detail. I need proficient help in the above problems.
suppose that 500 g of water vapor condense to make a cloud about the size of an average room. if we assume that the
the equilibrium constant for the reaction of bromine with chlorine to form bromine monochloride is 58.0 at a certain
Consider the dissolution of CaCl2. CaCl2(s) Ca2+(aq) + 2 Cl-(aq) ΔH = -81.5 kJ A 13.2 g sample of CaCl2 is dissolved in 106 g of water, with both substances at 25.0°C.
Determine the volume of a 0.530 M KMnO4 solution required to completely react with 2.70 g of Zn.
If the concentration of lead iodide [PbI2] in a saturated aqueous solution is 1.5 x 10-3 M, what is the Ksp of PbI2
The Cd2+ was displaced from EDTA by the addition of an excess of CN-. Titration of the newly freed EDTA required 29.2 mL of 0.0120 M Ca2+ . What were the molarities of Cd2+ and Mn2+ in the original solution
A student titrated a sample containing .5671 grams of Oxalic Acid with .3150 N of NaOH. The end point was reached after the addition of 20.12 mL of NaOH. Calculate the experimental equivalent weight for oxalic acid.
what tempreture must 0.040 moles of water vapor be heated in a 500ml flask before the pressure in the flask becomes 2 atm.
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