__H3PO4 + __Ca(Oh)2 --> __Ca3(Po4)2 + __H2O Balanced equation
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Answer : The correct option is, (5) 5.5 kg
Explanation :
As we are given that yellow cake is a uranium ore that contains about 75 % . That means,
Mass of = 75 g
Mass of yellow cake = 100 g
Molar mass of uranium = 238 g/mol
Molar mass of = 842 g/mol
First we have to calculate the mass of pure uranium.
As, 842 g of contains
of pure uranium
So, 75 g of contains
of pure uranium
Now we have to calculate the mass of yellow cake.
As, 63.59 g of pure uranium present in 100 g of yellow cake
So, 3.5 kg of pure uranium present in of yellow cake
Thus, the mass of yellow cake processed to produce 3.5 kg of pure uranium must be, 5.5 kg