How to go from ml to moles
[DOC File]CHEMISTRY WORKSHEET # 2 MOLE PROBLEMS—THE MOLE …
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How many moles of nitrogen are there in a 16,500 mL sample of nitrogen at STP? CHEMISTRY WORKSHEET # 6 MIXED MOLE PROBLEMS (GRAMS, MOLECULES, AND LITERS) You now know three things a mole can be: a molar mass, 6.02 x 1023 molecules and, for a gas, 22.4 liters at STP.
[DOC File]AP Chem Lab - Redox Titration
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Label two 250-mL Erlenmeyer flasks as samples 1 and 2. Place 1 gram of iron(II) ammonium sulfate, Fe(NH4)2(SO4)2.6H2O, into each flask. Record the mass of the iron(II) ammonium sulfate to at least the nearest milligram. Add 25 mL of distilled water to each sample and swirl the flasks to dissolve the iron(II) ammonium sulfate.
[DOC File]Review Chapter 3 sections 4-11 - Glendale Community College
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But from moles we can find grams via molar mass, we can find volume via molarity, and we can find the actual # using Avogadro’s number. For example we can start with mL of a reactant but calculate the theoretical grams of a product. Convert mL to moles using the molarity, then use a mole ratio, then convert to grams using molar mass.
[DOC File]Moles of Iron and Copper
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d) do not pour off the last 5 mL of solution. In this manner, you will minimize the loss of solid during decanting. Please realize you will lose some solid, the point is to minimize it. 15) Add about 20 mL of distilled water to the copper, swirl and let the copper settle. Decant into the sink. Add another 20 mL of distilled water, swirl and decant.
[DOC File]Productivity Calculations SOLUTIONS
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3x 10-5 moles of C / L-wk + 15 x 10-5 moles of C / L-wk = 18 x 10-5 moles of C / L-wk Imagine we run an experiment on a marine diatom. We place equal amounts of the diatom species in light and dark bottles, and measure their starting dry weight (take another “equal amount”) and dry it out.
[DOC File]Chapter 9 Homework
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Convert 350.0 mL at 740.0 mm of Hg to its new volume at standard pressure. Convert 338 L at 63.0 atm to its new volume at standard pressure. What would the volume in liters be of an ideal gas, if a 0.266 mole sample had temperature of 75oC at a pressure of 3222 torr ? A sample of gas intially has a volume of 955 mL and a pressure of 3.97 atm.
[DOC File]Mole Conversion Worksheet
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400g 1 moles 400 x 1 moles. 1 197 g 197 2.03 mol Au. Mole-Particle Conversions. 1. How many moles of magnesium is 3.01 x 1022 atoms of magnesium? 3.01 x 1022 atoms = 5 x 10-2 moles. 2. How many molecules are there in 4.00 moles of glucose, C6H12O6? 3. How many moles are 1.20 x 1025 atoms of phosphorous? 4. How many atoms are in 0.750 moles of ...
[DOC File]Problem Codes
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Word Problem Answer Ms. Piller How many moles of Pb are in 2.3456 g of Pb? 0.01132 ml Owns How many atoms are present in 4.80 mol of Fe? 2.9 x 1024 A How many moles of K are in 5.7 x 1023 atoms? 95 moles Red Calculate the number of atoms in 7.50 mol of S? 4.5 x 1024 Saturn What is the molar mass of Na2SO4 142 g/mol
[DOC File]Chemistry I-Honors
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For most mole concept problems, you need to go through three steps: #1. Convert the given quantity (whatever it is) into moles #2. Use the mole ratio between the substance given and the desired substance #3. Get out of moles and into the desired unit.-2-Example problems: What is the mass of a 256.0-ml sample of carbon dioxide gas at STP conditions?
[DOC File]1
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That gas had a volume of 325-mL and was collected at 744-mm Hg and 21˚C. What is the molar mass of the gas? 6. A bicycle tire that has a volume of 0.85-L is inflated to 140 pounds per square inch. What will be the pressure in the tire if the number of moles of gas is doubled? 7. 324-mL of oxygen is collected over water at 685-mmHg and 18˚C.
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