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[DOC File]DAY 1: ATOMIC STRUCTURE & AVERAGE ATOMIC MASS
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The number of neutrons in the nucleus of an atom can be determined by: ___MASS NUMBER – ATOMIC NUMBER = NUMBER OF NEUTRONS_____ 2. Use your periodic table to complete the chart below: ELEMENT SYMBOL ATOMIC . NUMBER ATOMIC . MASS # PROTONS NEUTRONS ELECTRONS Sodium Na 11 23 11 12 11 Iron Fe. 26 56 26 30 26 BARIUM Ba. 56 137 56 81 56 …
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[DOC File]Lab: The Atomic Mass of Candium
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Aug 09, 2012 · Total Number of Atoms Average Mass (g) (Row 1/Row 2) X 4. Percent Abundance (%) (Box 2/Total Atoms) X Analysis: Show at least one sample set-up in lab report notebook for each type of calculation for #1 and #2. 1. Calculate the average mass for each isotope (answers in row 3) Average Mass = total mass of atoms . total number of atoms. 2.
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[DOC File]UNIT 3 – WORKSHEET 1: MOLE PROBLEMS
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Find the molecular formula of a compound if its empirical formula is CH2O and its molar mass is 90 g/mol. CH2O = 12 + (2 x 1) + 16 = 30 g/mol 90/30 = 3, so empirical formula x …
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Modeling Isotopes – Calculating the Atomic Mass of “Snackium”
Check your answer against the average mass on the periodic table. 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
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[DOCX File]Math Test—Calculator - SAT Suite of Assessments
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Math Test—Calculator. 25 Questions. Turn to Section 4 of your answer sheet to answer the questions in this section. ... is a real number. ... The ratio of silver to copper is 37 to 3 by mass. If the platter has a mass of 600 grams, what is the mass, in grams, of the copper in the platter? A. 18. B. 45. C. 222. D. 555.
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[DOC File]Mole Calculation Worksheet
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Use the number of moles given to fill in the table below. Use your Periodic Table, calculator, and Avogadro’s number (6.02x1023) to help. Check your notes for help with molar mass! (Here’s how to find the answers. To find mass in grams To find # of particles # of moles x molar mass # of moles x 6.02x1023
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[DOCX File]Chemistry Unit 1 (mainly Ch
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Atomic number, mass & isotopes (Calculator would be helpful!) Tuesday August . 30 (Work Practice problems) Wednesday August . 31 . Lab – Atoms & Molecules. Thursday Sept 1. Timeline is due today! Nuclear reactions/practice . Friday Sept 2. Element . quiz . Lab. Report due today. Isotope mini lab. Monday. September. 5 . Labor Day Holiday
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[DOC File]Atoms and Isotopes Worksheet
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Nickel-58 15 15 53 74 36 48 34 45 Calcium-40 Chlorine-37 Calculate the average atomic mass of chlorine if its isotopes and % abundances are as follows. Show all work. Mass of Isotope % abundance 36.96590 24.47 34.96885 75.53 Atoms and Isotopes Worksheet. Fill in the table with the correct information
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[DOC File]DMR Calculations
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To do this on the calculator, get the product of multiplication, then press (1) the "INV" key, (2) the "yx" key, and (3) the "nth" root number. Labeling of keys and functions will vary with different brands of calculators. Consult your calculator’s user’s manual for the specific procedure to …
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[DOC File]Isotope Practice Worksheet
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The number 6 refers to the _____ The numbers 12, 13, and 14 refer to the _____ ... What is the atomic mass of hafnium if, out of every 100 atoms, 5 have a mass of 176, 19 have a mass of 177, 27 have a mass of 178, 14 have a mass of 179, and 35 have a mass of 180.0? 6 6 6 . Title:
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Mass number calculator