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what does formula unit mean. Because the positively and negatively charged ions in an ionic compound are arranged in a crystal lattice there is no discrete particle comparable to a molecule. When creating a formula to be calculated as a parameter for a family in Revit the dialog box Inconsistent units is displayed and the formula is not accepted.
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NaCl is the formula unit for the ionic compound sodium chloride. Formula unit refers to the empirical formula of an ionic compound or network solid where no specific molecule exists. This sales information is used to determine the price point that allows for the greatest profit.
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Because the positively and negatively charged ions in an ionic compound are arranged in a crystal lattice there is no discrete particle comparable to a molecule. You can think of it as a unit per unit basis. A formula unit thus indicates the lowest reduced ratio of ions in the compound. The surface area per formula unit For the graphene example it would be half the in-plane surface area of the cell frac12 mathbfa_1 times mathbfa_2 approx frac12 24412 sin60deg approx 258 because there are two.
