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Problem- Find the absolute and relative uncertainty and express each answer with a reasonable number of significant figures.9.2 (+/- 0.7) * [[5.4 (+/- 0.3) * 10^-3] + [5.6 (+/- 0.1) * 10^-3]]
You must show your work in an efficient manner so I can understand it in clearly
suppose you have a calorimeter that contains 100.0 grams of water at an initial temperature of 25 c. a salt 2.19 g
one of the ways that benzene is produced on a large scale is the hydrodealkylation of toluenec6h5 ch3 h2 -gt c6h6
Composting systems perform best when the carbon to nitrogen ratio is in the range of 20-40 (C: N of 20:1 to 40:1)
Chemicals available for extractions: CH2CL2, 1M NaOH, 1M HCL and sodium sulfate for drying, Chemicals available for crystallization: ethyl ether, 95% ethanol, methanol, isopropyl alcohol, acetone, hexane, toluene and methylene chloride.
Compute the percent KHP (204.23 g/mol) in an unknown sample if 27.93mL of 0.1510 M NaOH were necessary to reach a phenolphthalein endpoint using a 2.3423 gram sample of unknown
Calculate the reversible potential difference between the two wires when the activity of dissolved zinc chloride is 0.01 molal (mol/kg H20). Indicate the direction of the spontaneous reaction and the sign of the electrodes.
A compound containing only C, H, and Cl was examined in a mass spectrometer. The highest mass peak seen corresponds to an ion mass of 52 amu. Th most abundant mass peak seen corresponds to an ion mass of 50 amu and is about three times as intense ..
Calculate the equilibrium concentration of Zn2+(aq) in a solution that is 0.0125 M Zn(NO3)2 and 0.600
The nuclide Pb-210 undergoes three successive decays (beta, alpha, and beta, respectively) to form a stable nuclide. What are the three nuclides which form from Pb-210 in this decay series
Under certain conditions of temperature and pressure, 15.0 mL of a gas "Cb" with a molas mass of 56.0 g/mol effused through a pinhole in 30min.
You place 25 moles of a monomer in a flask. It equilibrates to form a dimer by the following reaction. The molar equilibrium constant is found to be 3.5. monomer ( ) dimer or restated 2A ( )A2, What are the concentrations of the monomer and dimer i..
Explain the standard molar free energies of formation of NO2(g) and N2O4(g) at 25 degrees C are 51.840 and 98.280 kJ/mol respectively. Explain what is the value of Kp for the following equilibrium at 25 degrees C 2NO2(g)= N2O4(g)
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