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What would happen to the % Transmittance value if the wavelegth is changed from 447nm to 520 nm?
The temperature of the acid solution increases from 24.2 oC to 29.9 oC. Calculate deltaH for the reaction that occurred.
a reaction mixture initially contains a br2 partial pressure of 755 torr and a cl2 partial pressure of 725 torr at 150
Paper pulp produced by kraft/sulphate process is A. bleached easily B. dull white in color C. strong fibrous D. dark colored 2. Claude process of gas liquefaction employs A
What mass of sodium chloride, NaCl, is needed to make 389. g of a 3.89%(m/m) NaCl solution? (atomic masses: Na = 22.99, Cl = 35.45)
How many moles of HCl are required to react with 0.610 g of Al(OH)3 in the above unbalanced reaction? Use at least as many significant figures in your molar masses as in the data given.
a hot tub is filled with 460 gallons of water which has a density of 1.0 . what is the volume of water in the tub in
what would happen to the molar mass of the solute if the thermometer used actually read 1.4 degrees Celsius too high?
For the reduction of Iron(III) to Iron(II) by an applied potential starting at +300mV and stepping to a applied potential of -500mV, in a diffusion limited environment with a planar electrode, plot the charging and faradaic currents at 298K
A 30.0 mL sample of 0.30M HClO (aq) is titrated with 0.20 M NaOH (aq). Ka of HClO is 3.5*10^-8. a. What volume of base is needed to reach the equlivance point. b. Determine the pH of the equlivance point.
Assuming that no lead was originally present, that all the 206Pb formed over the years has remained in the rock, and that the number of nuclides in intermediate stages of decay between 238U and 206Pb is negligible, calculate the age of the rock.
The overall Kf for complex ion Ag(NH3_x+ is 1.7 x 10^7. The Ksp for AgI is 1.5 x 10^-16. What is the molar solubilitiy of AgI in a solution that is 2.0 M in NH3?
How does the strength of the attration between water molecules and sodium and chloride ions compare with the strength of the attraction between the sodium ions and chloride ions?
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