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If 85.0 of fluorine-18 is shipped at 8:00 a.m., how many milligrams of the radioisotope are still active if the sample arrives at the radiology laboratory at 1:30 p.m. ?
how does the technique error affect the report percent water in the hydrated salt? Explain lab 5 percent water in a hydrated salt.
How many grams of HCl are produced according to the following equation, H2 + Cl2 = 2 HCl, when 4.0 g of hydrogen reacts completely.
What mass of magnesium chloride is needed to react with 145 g of silber nitrate accourding to the following reaction: MgCl2(aq)+2AgNO3(aq) -> Mg(NO3)2(aq) + 2AgCl
describe the change in conductivity as the concentration of the NaCl solution was increased by the addition of NaCl drops
Determining a Four Stroke Engine's Dimensions Based on its Power, The engine produces indicated power of 35 HP. While it is running at 2500 RPM. Find the dimension of the engine.
Calculate the number of moles of HCl in the solution dispensed and its associated error.
How much heat (in kJ) is evolved in converting 1.00 {mol} of steam at 160.0C to ice at -45.0C? The heat capacity of steam is 2.01 J/g*C and of ice is 2.09 J/g*C.
determine the freezing point of this solution If 18.0 grams of a nonelectrolyte that has molar mass = 44.2 g/mol are combined with 110.0 grams of the solvent,?
one day you notice that the outside temperature increase by 16 degrees Fahrenheit between your early morning jog and your lunch at noon. what is the corresponding change in temperature in the Celsius and Kelvin scales?
A student traces of brown deposite during the KMnO4 (NH4)2Fe(SO4)2 titration and quickly add more H2SO4 and continued his titration?Suggest what wil happen and why.
A sample of hydrogen gas was collected over water at 36°C and 855 mm Hg. The volume of the container was 6.50 L. Calculate the mass of H2(g) collected. (Vapor pressure of water = 44.6 torr at 36°C)
the volumetric flask during weighing by difference after recording the mass, how would it affect the final result for his calculated molecular mass of the metal carbonate?
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