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8 mar 2021 · This is a collection of free chemistry worksheets and handouts to print. Most of the printables are PDF files, although some are available as JPG or PNG files. All of these worksheets print cleanly on normal printer paper, plus you can resize them to fit your needs.
- Word Search Puzzles
Chemistry Glassware Word Search – Find the different types...
- Element Symbol Worksheets
More Element Symbol Worksheets. Need more practice? Here are...
- Word Search Puzzles
The amount of substances that completely react with each other in the reaction is called equivalent weight in chemistry. While answering the question, what is equivalent weight? you should keep in mind that its definition depends on the two factors; the molar mass and valency factor of the compound.
8 mar 2020 · The general number of equivalents formula is. E = MW/charge number. Where MW is the molecular weight of the compound and charge number is the number of proton- or hydroxide-equivalents the compound contains. Examples with different acids and bases help illustrate how this works in practice.
Definitions of Equivalent Weight ( Acid-Base Context ) The weight of a compound that contains ONE EQUIVALENT of a proton (for acid) or ONE EQUIVALENT of an hydroxide (for base). Examples: (1) H 2 SO 4 + 2OH - = 2H 2 O + SO 42-. Molecular weight of sulfuric acid (H 2 SO 4) = 98.07 g/mol.
3 paź 2024 · The equivalent weight (EW) of a substance can be calculated using the formula: \ [ \text {EW} = \frac {\text {MW}} {\Delta E} \] where EW is the equivalent weight, MW is the molecular weight, and ΔE is the number of electrons gained or lost by one molecule.
The formula weight of a substance is the sum of the atomic weights of each atom in its chemical formula. For example, water (H 2 O) has a formula weight of: \[2\times(1.0079\;amu) + 1 \times (15.9994 \;amu) = 18.01528 \;amu \nonumber \]
24 sty 2016 · Equivalents is similar to moles. The number of moles is given by (mass of the compound)/(molecular mass). Similarly the number of equivalents is given by (mass of the compound)/(equivalent weight). For example, 1 equivalent of calcium contains 20g of calcium. 2 equivalents of calcium contain 40g of calcium. The utility of equivalent weights is ...
