Weight percent calculator chemistry
[DOC File]AP* Chemistry
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Percent yield: The ratio of actual to theoretical yield. Actual Yield × 100% = Percent yield. Theoretical Yield. Exercise 3.19 Calculating Percent Yield. Methanol (CH3OH), also called methyl alcohol, is the simplest alcohol. It is used as a fuel in race. cars and is a potential replacement for gasoline. Methanol can be manufactured by ...
[DOC File]Empirical and Molecular Formula Worksheet
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10) A well-known reagent in analytical chemistry, dimethylglyoxime, has the empirical formula C2H4NO. If its molar mass is 116.1 g/mol, what is the molecular formula of the compound? 11) Nitrogen and oxygen form an extensive series of oxides with the general formula NxOy. One of them is a blue solid that comes apart, reversibly, in the gas phase.
[DOC File]Chapter 13 worksheet #1
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mass fraction and mass (or weight) percent (%) mass fraction = mass of component / total mass of soln. mass % = mass fraction x 100. parts per million/billion/trillion (ppm/ppb/ppt) ppm = (mass fraction) x 106. ppb = (mass fraction) x 109. ppt = (mass fraction) x 1012. Used for very dilute solutions (for example pollutants in drinking water).
[DOC File]Molar Mass Percent Composition
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Chemistry: Molar Mass and Percentage Composition KEY. Calculate the molar masses and percentage composition of each of the following compounds. Show your work and always include units. 1. Ca3P2. 2. Ca(OH) 2. 3. Na2SO4. 4. CaSO4. 5. (NH4) 2SO4. 6. Zn3(PO4) 2. 7. Mg(NO2) 2. 8. KCl
Modeling Isotopes – Calculating the Atomic Mass of “Snackium”
Mass number Exact weight (amu) Percent Abundance 12 12.000000 98.90 13 13.003355 1.10 Find the average atomic mass for silicon, and check your answer. Mass number Exact Weight (amu) Percent Abundance 28 27.976927 92.23 29 28.976495 4.67 30 29.973770 3.10 Find the average atomic mass for molybdenum and check your answer.
[DOC File]Stoichiometry Lab
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3) Weigh a 500 mL flask. You will need the weight of the empty flask at the end of the lab. Weight of the empty 500 mL flask: 209.63 grams. 4) Add the sodium bicarbonate solution to the preweighed 500 mL flask. 5) Obtain 150 mL of acetic acid and slowly add it to the sodium bicarbonate solution.
[DOC File]Standardizing a Sodium Hydroxide (NaOH) Solution
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This will skew your results! Record the weight. Calculate the weight percent of Mg(OH)2 in milk of magnesia using the following equation: Calculate the weight percentage of Milk of Magnesia: Repeat with another sample of milk of magnesia from a different bottle to see if the weight percent of Mg(OH)2 is consistent from sample to sample. Questions:
[DOC File]Chemistry 101L - Boyd County Public Schools
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This % should be a w/v, or weight/volume, percent, i.e. the % acetic acid = (g acetic acid/ mL vinegar) x 100. You should also calculate an average % acetic acid. Finally, you should also calculate an average molarity of acetic acid.
[DOC File]The Percent Composition Worksheet
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The Percent Composition Worksheet. Calculate the percent composition of the compounds that are formed from these reactions: 9.03 g of Magnesium combine completely with 3.48 g of Nitrogen. 29.0 g of Argon combine completely with 4.30 g of Sulfur. 222.6 g of …
[DOC File]Worksheet for Basic Stoichiometry
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Part 1: Mole ←→ Mass Conversions. Convert the following number of moles of chemical into its corresponding mass in grams. 1. 0.436 moles of ammonium chloride
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