Explain which has a higher molarity of k+ ions
Explain which has a higher molarity of K+ ions when an aqueous solution that is 15ppm in KBR or an aqueous solution that is 9ppm in K2CO3
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Explain how you could calibrate an infrared spectrum. When an infrared spectrum is run, there is a possibility that the chart paper is not properly placed or that the spectrometer is not mechanically adjusted.
Determine the cell voltage of an electrochemical cell that consists of two platinum (inert) electrodes with the 0.100MCrCl3/0.0500 M K2Cr2O7in one compartment and 0.100 M FeCl3/0.0700 MFeCl2 in another compartment.
The plane took one hour longer to travel 560 miles on first portion of the flight than it took to fly 480 miles on second portion. If speed was same for each portion, find flying time for second part of trip?
Estimate which of the following statements are false, and correct them. (a) Electromagnetic radiation is incapable of passing through water.
A chemist observed that it would not readily dissolve in HCl, Solid black CuS is exceedingly insoluble, but would react with concentrated HNO3 resulting in a solution containing Cu2+, among other things.
A mixture which is having 0.3 g of CuCl and Cu (IO3)2 is made. The mixture is 46% Cu(IO3)2 and 54% CuI. At 20 deg C if the solubility of CuI is 0.0072g per 100.0g of water and the solubility of Cu(IO3)2 is 0.4 g per 100.0g of water at the 20deg C.
A sample which is having 0.1219 g of solid magnesium is burned in a constant-volume bomb calorimeter that has a heat capacity of 1769 J/°C when the calorimeter contains exactly the 241 g of water, and the temperature increases by the 1.126°
A 25.00 ml portion of 0.100 Ag+ is added to a solution which is having the 0.0010 mole of Cl-. This solution is then titrated with the 0.0500MNCS- to the end point. Determine the volume of NCS- is needed for the titration.
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