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[DOCX File]Measuring Mass Lab
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2. Calculate the number of Au atoms in 0.197 moles of Au. 3. Calculate the number of moles in 1.06 x 1030 atoms of Ta. 4. Calculate the number of moles in 1.18 x 1026 atoms of Ag. 5. Calculate the mass (g) of 7.11 moles of Ca. 6. Calculate the mass (g) of 5.32 x 10-3 moles of U. 7. Calculate the number of moles of Re in 9.35g of Re. 8.
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[DOC File]HOMEWORK 7
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Calculate the number of moles of the substance that contains the following number of representative particles. 24. 8.92 x 1023 atoms of barium. 25. 5.50 x 1025 molecules of carbon monoxide. 26. 2.66 x 1022 formula units of potassium iodide. Determine the mass in grams of each of the following quantities. 27. 1.24 moles of beryllium. 28. 3.35 ...
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How to Calculate the Number of Molecules | Sciencing
1. Calculate the number of moles in 3.00 grams of boron tribromide. _____ 2. Determine the mass (in grams) of 6.94 moles of barium chloride. _____ 3. How many molecules are in 1.75 moles of phosphorus trichloride? _____ 4. How many moles are in 3.34 x 1034 formula units of copper (II) hydroxide? _____ 5. Calculate the number of moles in 64.1 g ...
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[DOCX File]AP CHEMISTRY PRACTICE 3.11 - 3.13 - Pearl Public School ...
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Given this number we can calculate the number of particles in a known number of moles or the number of moles in a given number of particles. EXAMPLE: How many molecules of water are there in 3.00 moles of water? # molecules H20 = 3.00 moles H20 x …
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[DOC File]Moles
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Calculate the number of moles and the number of grams of iodine (I2) that can be made this way from 16.4 grams of NaIO3. 5) Using the following equation: 2 I2 + KIO3 + 6HCl -----> 5ICl + KCl + 3H2O . Calculate how many grams of iodine are needed to prepare 28.6 grams of ICl by this reaction. 6) Using the following equation: ...
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[DOC File]Chemistry Worksheet Stoichiometry
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If x moles of ICl were placed in a 5.0 L container at 10 oC and if an equilibrium concentration of I2 was found to be 0.60 M, calculate the number of moles ICl initially present. 8. A student places 2.00 moles SO3 in a 1.00 L flask. At equilibrium [O2] = 0.10 M at 130 oC. Calculate the Keq.
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[DOC File]Worksheet for Basic Stoichiometry
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Calculate the number of moles of Co. 2+ (aq) in the 50.00 mL solution. Calculate the mass percent of Co in the 0.630 g sample of the ore. The student in the previous problem used a spectrophotometer to determine the abs o rbance of each of the standard solutions at a wavelength of 510 nm.
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[DOC File]CHEMISTRY WORKSHEET # 2 MOLE PROBLEMS—THE MOLE …
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For example, you can count the number of cookies in a bag or the number of pages in your notebook. There is a name for a number of atoms, ions, or molecules. One mole of a substance is equal to 6.02 x 1023 atoms, ions, or molecules of that substance. You can determine the number of moles in a substance by obtaining the mass of the substance ...
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How to calculate the number of moles