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[DOC File]Chemistry Worksheets
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How many grams of liquid oxygen would a rocket have to carry to burn 10 kg of diborane completely? (The products of the combustion are B2O3 and H2O.) Given the balanced chemical equation. Br2 + 2 NaI ( 2 NaBr + I2. How many moles of sodium bromide (NaBr) could be produced from 0.172 mol of bromine (Br2)? How many formula units of calcium oxide
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[DOC File]Formula of a Hydrate Lab
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Show your work, include units, and write your answers in the blanks on the right. 1. What mass of hydrate did you start with? 10.00 g MN.xH2O. 2. How much water was driven off from the hydrate during the heating process in units of… A. grams? 5.10 g water. B. moles? 0.283 mol water. 3. How much anhydrous salt remained in the beaker in units ...
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[DOC File]AVOGADRO'S NUMBER WORKSHEET
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1. How many formula units would there be in a 54.3 gram sample of sodium nitrate? 2. How many atoms of copper are there in 1.00 kg of pure copper? 3. How much would 3.42 X 1023 formula units of mercuric oxide weigh in grams? 4. Which would weigh more--6.54 X 1022 formula units of aluminum chloride or 7.34 X 1022. formula units of stannous ...
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[DOC File]UNIT 3 – WORKSHEET 1: MOLE PROBLEMS
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c. 3.12 x 1021 formula units of iron (III) sulfide _____ d. 4.30 x 1027 molecules of carbon monoxide gas _____ 2. Find the number of moles in: a. 1.25 grams of strontium nitrate _____ b. 0.570 g of chlorine gas (Cl2) _____ 3. How many formula units are in 225 g of lithium oxide?
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[DOC File]Grams, Moles, and Molecules
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Substance Grams Formula mass (g/mol) Moles Formula Units (ie. molecules) He 0.0035 Cl2 0.0000634 O3 0.0005027 HBr 0.013 NaOH 0.02998 PbSO4 0.050 CH4 0.00874 CH2Cl2 0.00385 CH3CH2OH 1.0067 C6H12O6 6.0786 5. What is the conversion factor between grams of a component of interest and grams of total compound? 6.
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[DOCX File]Unit 1: FR CW/HW - In progress.docx - NJCTL
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Sep 26, 2015 · Which contains the greater number of moles of each ion/element listed: [NO. 3 - ion] 3 x 1023 formula units of Mg(NO 3) 2 or 100 mL of 2 M Al(NO 3) 3 Write the empirical formula for C. 2 H 4 O 2.Calculate the percent by mass of carbon, hydrogen, and chlorine in DDT, C. 14 H 9 Cl. 5 Compare the percent by mass of chromium in CrO and Cr. 2 O. 3
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[DOC File]Chapter 1 - Solutions
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The number of formula units in the molecule is 75.2/74.12 = 0.99 ( 1. So the molecular formula is C4H10O (the same as the empirical formula) 56) When coal is burned the sulfur present is converted into sulfur dioxide (SO2), which is partly responsible for acid rain. S(s) + O2(g) ( SO2(g)
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[DOC File]Moles Class Packet Unit 2
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If in the reaction: 2K + Ca(NO3)2 ( 2KNO3 + Ca 6.00 grams of K react with 110 grams of Ca(NO3)2 and 98.5 grams are formed of KNO3, how many grams of Ca wil be produced? FORMULAS. 6. Empirical formula refers to any molecular formula in its reduced form. Molecular Formulas are some multiple of the empirical formula.
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[DOC File]Chemistry Worksheet Stoichiometry
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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 moles of calcium. 29. 0.155 mole of sulfur. Calculate the number of moles in each of the following samples. 30. 6.35 g lithium. 31. 346 g zinc. 32. 115 g nickel. 33. 3.75 g calcium carbide (CaC2)
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Molar Mass Practice Worksheet - OnCourse Systems
4) 0.56 moles of SnCl4 to formula units of SnCl4. PART II: Grams to moles and moles to grams. 5) 3.0 g of C to moles of C. 6) 45.0 g of Na to moles of Na. 7) 8.1 moles of Au to grams of Au. 8) 0.765 moles of Mg to grams of Mg. PART III: Combination (2-step) questions. Convert the Following . 9) 51g of S to atoms of S. 10) 8.34×1023 atoms of Fe ...
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Formula units to grams