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State mathematical equation that show how you will compute the detected activity from the count rate the sample KCl
A compound A (C22H27NO) is insoluble in acid and base but reacts with concentrated aqueous HCl and heat to give a clear aqueous solution from which, on cooling, benzoic acid precipitates. When the supernatant solution is made basic, a liquid B sep..
a 150.0-g sample of metal at 80.0degc is added to 150.0 g of h2o at 20.0degc. the temperature rises to23.3degc.
Describe in general terms the steps involved in the automated synthesis of the DNA sequence ATG
The hottest temperature yet recorded in Phoenix AZ was 122 dgrees F what is the temperaturein degrees C and K
In an exacting redox reaction, NO2- is oxidized to the NO3- as well as Cu2+ is reduced to Cu+. Complete as well as balance the equation for the reaction in an acidic solution.
why must the Meltemp apparatus cool dwon to around 40 C between measurments? 5)why you expect ionic solids to have higher melting point than molecular solids?
the data in the table below were obtained during a colorimetric determination of glucose in blood serum.glucose
How many grams of cobalt (III) chloride and of hydrogen fluoride are needed to prepare 100.00 grams of cobalt (III) fluoride
Choose the most likely pattern for the crystal field diagram for the complex trans-[Ni(NH3)2(CN)4]2-, where CN- produces a much stronger crystal field than does NH3.
the NERNST equation is used to predict the impact of concentration on the cell potential. What value of slope does the Nernst equation predict for a plot of Ecell vs. log(cu2+ conc ratio)
What is the mole fraction of water in this solution? What is the vapor pressure of the solution at 25 degrees Celsius, given the vapor pressure of pure water at 25 degrees Celsius is 23.8torr
Acetylene gas (C2H2) burns with oxygen in an oxyacetylene torch to produce carbon dioxide, water vapor, as well as the great heat needed for welding metals. The heat of combustion of acetylene
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