(Solved): A mixture of methanol (methyl alcohol) and water contains 40.00% water by mass. Ideal Specific Gra ...

A mixture of methanol (methyl alcohol) and water contains $$40.00\%$$ water by mass. Ideal Specific Gravity Correct. The specific gravity of water at $$20^{?}\mathrm{C}$$ is about $$0.9982$$; the specific gravity of methanol at $$20^{?}\mathrm{C}$$ is about $$0.7917$$. Assuming volume additivity of the components, estimate the specific gravity of the mixture at $$20^{?}\mathrm{C}$$. $$\mathrm{SG}=$$ What volume of this mixture is required to provide $$200.0$$ mol of methanol? liters Repeat part (a) with the additional information that the specific gravity of the mixture at $$20^{?}\mathrm{C}$$ is $$0.8946$$ (making it unnecessary to assume volume additivity). What is the real volume of the mixture required to provide $$200.0$$ mol methanol? liters What percentage error results from the volume-additivity assumption? $$\%$$