A mixture of zinc and anhydrous zinc nitrate was heated in air, and its mass has not changed after this procedure. Calculate the mass frac-tions of the components in the mixture.
To calculate the mass fractions of the components in the mixture, we need to determine the mass of each component.
Let's assume that the initial mass of the mixture is M grams. Since the mass of the mixture does not change after heating, the final mass of the mixture is also M grams.
Let's say the mass of zinc in the mixture is mz grams, and the mass of anhydrous zinc nitrate is mn grams.
Using the law of conservation of mass, we can write the mass balance equation:
M = mz + mn
Now, let's calculate the mass fractions:
Mass fraction of zinc (Xz) = mz / M
Mass fraction of anhydrous zinc nitrate (Xn) = mn / M
To calculate mass fractions, we need the values of mz and mn. However, we don't have enough information to determine these values directly from the given information.
To find the mass fractions, we would need additional information such as the percentage composition of the mixture or the masses of each component before the heating process. Without this additional information, we cannot calculate the mass fractions of the components accurately.
Therefore, we need more information about the composition of the initial mixture to determine the mass fractions.