35°C | Distance solution travels | Controlled by always pouring out 1cm3 of all the different C6H12O6 solutions for one reading | Pressure inside the burette | Controlled by always using the same burette | Procedure Apparatus * * H2O * C6H12O6 * 1 25cm3 measuring cylinder (uncertainty: ±0.5cm3) * 1 50cm3 burette(uncertainty: ±0.1cm3) * 5 25cm3 flasks + fitting bungs * 1 electric scale(±0.0005g) * 1 thermometer(±0.005 °C) * 1 stopwatch(±0.005s) * 1
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NH3 H2O - NH4OH can be a very useful to the society because by keeping an eye out for this synthesis reaction‚ chemical technicians are able to identify ammonium hydroxide in water accessed by people and prevent people from being in contact with toxic water. Ammonia takes the form of gas at room temperature. It is a colourless gas with an irritating odour. Ammonias melting point is at -77 degrees Celsius and its boiling point is at -33.35 degrees Celsius. This covalent compound is corrosive to
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QUESTIONNAIRE FOR SELLER 1. Which mobile brand has more demand? A. Nokia B. Samsung C. Micromax D. Other 2. Do you keep Micromax mobile phones? A. Yes B. No 3. Do you agree that Micromax mobiles give more features at low cost? A. Yes B. No 4. Which customers buy Micromax mobiles? A. Customer demanding features B. Customer having low budget C. both options
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and I as a female I think my behavior was a little more conservative than theirs was! Simple things would be different as well‚ I don’t think that if I were a boy my favorite color would be pink or I wouldn’t be driving the same car with a bunch of bling on it either! I think if I were a male I would play sports‚ probably baseball because as a girl I played softball and I enjoyed it but didn’t stick with it…maybe that would have been different if I were a boy‚ it might have been easier to stick to
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One of the biggest product technology successes this country has seen lately is that of Micromax Mobile‚ the mobile handset maker is already the country’s second-largest mobile phone seller. So it was only fitting that at the Grand Finale of TechSparks™ 2011‚ India’s flagship showcase event for product technology companies‚ the company’s co-founder Vikas Jain took the stage to a rousing reception. When Micromax launched its telecommunications operations‚ the Indian mobile phone market was dominated
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reaction with 20 grams of lithium hydroxide. What is my theoretical yield of lithium chloride? b. I actually produced 6 grams of lithium chloride. What is my percent yield? 5) Given the following equation: C3H8 + O2 ( CO2 + H2O a. If I start with 5 grams of C3H8‚ what is my theoretical yield of water? b. I got a percent yield of 75%. How many grams of water did I make? 6) Be + 2 HCl ( BeCl2 + H2 My theoretical yield of beryllium chloride was
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Chemical Equilibrium ------------------------------------------------- ------------------------------------------------- RESULTS AND DISCUSSION A. Iron-Silver Equilibrium In studying equilibrium between iron and silver‚ 0.10 M FeSO4 and 0.10 M AgNO3 were used. The balanced equation for the reaction is: FeSO4 (aq) + 2 AgNO3 (aq) ↔ Fe(NO3)2 (aq) + Ag2SO4 (s) It has a net equation of: Fe2+(aq) + Ag+(aq) ↔ Fe3+(aq) + Ag(s) This part of the experiment
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Anhydrous copper sulfate (CuSO4) is white‚ which means that it does not absorb light in the visible region of the spectrum. The hydrated copper sulfate (CuSO4 - 5H2O) is blue. The structure of the compound can be represented more accurately as Cu(H2O)4 SO4 - H2O where four water molecules are bound to the copper ion and the fifth is a water of crystallization. The water molecules are arranged at the corners of a square‚ with the copper at the center. Such an arrangement is called square coplanar. The
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the equilibrium constant is 1 E) the limiting reagent has been consumed 2) Which of the following expressions is the correct equilibrium-constant expression for the reaction below? HF (s) + H2O (l) ⇌ H3O+ (aq) + F- (aq) A) [HF][H2O] / [H3O+][F-] B) 1 /[HF] C) [H3O+][F-] / [HF][H2O] D) [H3O+][F-] / [HF] E) [F-] [H3O+] 3) The value of Keq for the equilibrium H2 (g) + I2 (g) ⇌ 2 HI (g) is 794 at 25 °C. At this temperature‚ what is the value of Keq for the equilibrium
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1) 1.01 × 1024 2) 2.02 × 1024 4) 6.02 × 1023 12. Given the balanced equation: X + Cl2 - C2H5Cl + HCl Which molecule is represented by X? 1) C2H4 2) C2H6 3) C3H6 4) C3H8 13. Which equation is correctly balanced? 3) 2 H2 + O2 → 2 H2O 1) H2 + O2 → H2O 2) Ca + Cl2 → CaCl 4) Ca + C12 → Ca2Cl 14. Given the unbalanced equation: __Al2(SO4)3 + __Ca(OH)2 → __Al(OH)3 + __CaSO4 Balance the equation using smallest whole number coefficients. Quarter 1 Midterm Review 15. At STP‚ 25.0
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