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Write the answer with the correct number of digits. FInd the absolute and relative uncertainty associtated with each answer.
6.2 (+/- 0.5) * 10^5 * 0.1085 (+/- 0.0011) =
Identify the following systems as open, closed, or isolated. i) Coolant in a refrigerator coil ii) The combustion of liquid hexane in a bomb calorimeter
propane c3h8 is often used as a fuel for heating. it burns to produce carbon dioxide and water. write a balanced
A concentration cell consists of two Sn/Sn2+ electrodes. The electrolyte in compartment A is 0.15 M Sn(NO3)2. The electrolyte in B is 0.82 M Sn(NO3)2. Which electrode is the cathode
A hydrogen atom with an electron in its ground state interacts with a photon of light with a wavelength of 1.22 × 10-6m. Could the electron make a transition from the ground state to a higher energy level?
Assuming the oil layer to be one molecule thick, calculate the approximate diameter in Angstroms (1 A = 10^-10 m) of a single molecule. (Use volume = area x depth.)
the solubility of lead (ii) iodide (PbI2) is 0.64 g/L at 20 C. What is the solubility product for lead (II) iodide? Show work please
What would be the expected effect on yield if only one mole of diethylamine per mole of alpha-chloro
The procedure calls for the addition of 7-8 drops of aqueous NaOH. What is the purpose of the base here? Be specific and show the reaction that occurs
the boiling point of a solution containing 10.44 g of an unknown nonelectrolyte in 50.00 g of acetic acid is 159.2degc.
if a reation vessel contains .25 mol KO2 AND .15 mol H2O, what is the limiting reactant ? How many moles of oxygen can be formed ?
at room temperature 20circ rm c milk turns sour in about 63 hours. in a refrigerator at 3circ rm c milk can be stored
A sample of H½O with a mass of 46.0 grams has a temperature of -58.0 C. How many joules of energy are necessary to melt 46.0 grams of ice? (Use 2.1 J/g.C for the specific heat of ice, and 334.4 J/g for the heat of fusion of water.)
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