Chemistry

(a) compute the repeat unit molecular weight of polypropylene. (b) compute the number-average molecular weight for polypropylene for which the degree of polymerization is 15,000.
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What is the molarity of ions in a0.411 M solution of Ca(OH)2assuming the compounddissociates completely?
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Match the correct behavior of ions toward sulfuric acid, H2SO4.1) Chloride, Cl- ...A: Violet or red-brown vapors of elemental iodine formB: colorless, odorless gas (carbon dioxide) evolvesC. Colorless, pungent gas, HCl evolves, which turns blue litmus redD: No observable reaction
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what is 4 forces of flight
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name the following compound according to substitutive iupac nomenclature(CH3)2 CHCH2CH2CH2OH
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determine what type of reaction each unbalanced chemical equation represents
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you added 20 ml of 0.20m solution of ba(oh)2(aq) to 50 ml of 0.10m solution of hcl(aq). the ph of the resulting solution is .
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Aluminum chloride is decomposed to form pure aluminum and chlorine gas assuming that 10.0 g of was used for this reaction how many grams of chlorine and aluminum will be formed? Assume that a student did this reaction and got only 1.2 grams of aluminum what was this students percent yield?
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I need help please:(
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how many electrons are in the valence shell of each atom? (a) carbon (b) nitrogen (c) chlorine (d) aluminum
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A solution is made by mixing 569 mL of water and 238 mL ethanol. What is the concentration of ethanol in units of volume/volume percent?
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What is the stoichiometric factor between N2 and NO in the following balanced chemical equation?N2+O2?2NO
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What is the product formed from the following acid base reaction when ammonia functions as a base? the equilibrium lies far to the reactants.CH3OH+ NH3
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calculate the ph of a buffer solution that is prepared by adding 2.00 g of nh4cl(s) and 2.00g of nh4oh(l) to a volumetric flask and adding enough water to make 250.0 ml of solution.
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What is the mass of water required to prepare 50.0 g of 10.0% sodium nitrate solution? A) 5.00 g B) 5.56 g C) 45.09 D) 55.6 g E) 450 g
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what volume of a 1.0 M solution of KOH can be made with 100 grams of potassium hydroxide?
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Which of the following compounds is likely to produce a solution that conducts electricity (strong electrolyte) when dissolved in water? a) CH3CHOH b) SrCO3 c) SCl d) KSO4
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of the molecules hf and hcl , which has bonds that are more polar? a. HF bm HCl
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Based on the crystal-field strengths Cl < F < H2O < NH3 < H2NC2H4NH2, which octahedral titanium(III) complex below has its d-d electronic transition at the shortest wavelength?a. [Ti(OH2)6]3+b. [TiF6]3c. [Ti(H2NC2H4NH2)3]3+d. [Ti(NH3)6]3+e. [TiCl6]3
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ased on the following reaction: bacl2(aq) na2so4(aq) baso4(s) 2 nacl(aq) if a reaction mixture contains 4.16 g of bacl2 and 3.30 g of na2so4 how many moles of the precipitate will be formed?
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Show your work and calculate the total number of cations and anions in the unit cell of: a. Fluorite (CaF2) b. Zinc blende (Zn) Cesium Chloride d. Rock salt (NaCl)
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need help asap!! u dont gotta answer all questions btw
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CHEM FINAL TOMORROW!!!! If anyone could give a short explanation on how this works, it would help so much!
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for the reaction: agi(s) br2(g) agbr(s) i2(s) h = 54.0 kj hf for agbr(s) = 100.4 kj/mol hf for br2(g) = 30.9 kj/mol the value of hf for agi(s) is:
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