Alab has 60 ml of a solutions of uranium sulfate dissolved in water. based on the work done by the curies, how can the amount of radioactivity be reduced?
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Ответ:
Explanation:
1. Calculate the number of moles of NiCl₂
a) Identify the known variables
V =0.800 litersM = 0.531Mn = ?b) Formula
c) Clear n
g) Substitute and compute
2. Convert moles to grams
a) molar mass of NiCl₂
129g/mol (shown in the problem)b) Unit canceling method
Use the factors in order to cancel the units to obtain grams
Note that the mol unit appears on the numerator and denominator, so it cancels leaving just g (grams).
c) Round to 3 signficant figures