14,84 g magnesium are equivalent to 0,61 moles.
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There are 18.9 moles in 225.8 mg. This is a math problem.
The answer is 0,615 moles.
To find the number of moles in 1.346g of Mg, you need to divide the mass by the molar mass of Mg (24.305 g/mol). 1.346g Mg / 24.305 g/mol = 0.055 moles Mg
The molar mass of oxygen is 32 g.1,2 mg oxygen is equal to 0,0000375 moles.
The number of moles in 432 g Mg (OH)2 is 7,407.