6. Solution to Chemistry Problem

Product description

• A sample of limestone weighing mобр g was transferred to a solution, a negligible amount of radioactive 45Ca was added, and the total activity of the solution Atotal was measured. After that, CaSO4 was precipitated, the precipitate (mос) was weighed, and the activity of the precipitate Aос was measured. Determine the mass fraction (%) of CaCO3 in limestone using the following data:

Option 1 2 3 4

mобр, g 0.3023 0.3560 0.3410 0.4105

mос, g 0.2546 0.2872 0.2905 0.3178

Атоль, imp/min 870 914 950 925

Аос, imp/min 816 868 846 886

Solution for option 1

Additional information

If you cannot open the file or have any problems, do not rush to leave a negative review! Contact me and I will quickly help you solve the problem. After purchasing, please leave a positive review of the product :)