Four nails have a total mass of 4.42 grams how many moles of iron atoms do they contain
1 answer:
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Answer:
55.9 g KCl.
Explanation:
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In this case, according to the definition of molality for the 0.500-molar solution, we need to divide the moles of solute (potassium chloride) over the kilograms of solvent as shown below:
Thus, solving for the moles of solute, we obtain:
Since the density of water is 1 kg/L, we obtain the following moles:
Next, since the molar mass of KCl is 74.5513 g/mol, the mass would be:
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