3. Plot your data to create two lines with an intersection on a graph. Repeat any measurements that do not fall near the best-fit line. From the intersection, calculate the mole ratio of the reactants. Data Table: Experiment ml NaClO ml Solution B Temperature of Precipitate (degrees) 1 5 45 27.0 2 15 35 35.0 3 25 25 44.0 4 30 20 49.0 5 35 15 52.0 6 40 10 46.5 7 50 0 24.0 8 45 5 22.0 9 43 7 21.0 Graph: I eliminated the last two data points because it was making my graph weird.
The goal of the experiment is to synthesize a bromohexane compound from 1-hexene and HBr(aq) under reflux conditions and use the silver nitrate and sodium iodide tests to determine if the product is a primary or secondary hydrocarbon. The heterogeneous reaction mixture contains 1-hexene, 48% HBr(aq), and tetrabutylammonium bromide and was heated to under reflux conditions. Heating under reflux means that the reaction mixture is heated at its boiling point so that the reaction can proceed at a faster rate. The attached reflux condenser allows volatile substances to return to the reaction flask so that no material is lost. Since alkenes are immiscible with concentrated HBr, tetrabutylammonium bromide is used as a phase-transfer catalyst.
The ideal gas law, followed by a mole ratio were then used to calculate the volume of one mol of H_2 at ambient conditions. After that, the combined gas law was used to calculate the volume of one mol of H_2 at STP. Before calculating the experimental gas constant, the volume of air space in the flask was calculated, using the volume of empty air space in the flask and the 5 mL of HCl. Result calculations for all trials are shown in “Table 2”. (0.0107 g Mg)/1×(1 mol Mg)/(24.305 g Mg)=(4.40×〖10〗^(-4) mol Mg)/1×(1 mol H_2)/(1 mol Mg)=4.40×〖10〗^(-4) mol H_2 23.63 ̊C + 273.15 K = 296.78 K (8.1 kPa)/1×(1 atm)/(101.325 kPa)=0.0799
What is the molecular formula of this hydrate? *Answers to questions above... 1) 4.078 + 4.056 + 4.095 + 4.014 = 16.24/4 = 4.061 ±0.008 grams 2.253 + 2.256 + 2.261 + 2.249 = 9.019/4 = 2.255 ±0.012 grams 2) Mass of water = 4.061 – 2.255 = 1.806 ±0.020 grams Then convert to moles =1.806 ±0.020 / 18 g = 0.100 ±0.020 mol H2O Covert to moles of copper Sulfate =2.255 ±0.012 / 159.6 = 0.0141 ±0.012 mol CuSO4 Finally simplify those values by dividing by the smallest number =0.0141 ±0.012 / 0.0141 ±0.012 = 1 Then: 0.100 ±0.020 /0.0141 ±0.012 = 8 3) Molecular Formula= CuSO4 x 8H2O
As said before graft process is the base of the synthesis of ABS and it is important to follow the steps in order to obtain the desired product. Rubber and monomers like acrylonitrile and styrene are the only reagents that can produce this thermoplastics whose properties will depend on the proportion of the reagents used. All the grafting process could be summarized by the following reaction that has ABS as the final product: Figure 6. General reaction of the synthesis of
0.3 3.68 1.568 2.353 16.24x10-6 705 6.56 -1.56 26.5 0.48 4.57 1.776 2.578 17.74x10-6 758 6.63 -1.2 26.5 0.76 5.65 1.982 2.853 19.69x10-6 823 6.71 -0.73 26.84 1.02 6.59 2.146 3.075 21.22x10-6 875 6.77 -0.27 27.08 1.27 7.57 2.305 3.286 26.67x10-6 824 6.83 0.02 27.3 1.61 8.54 2.450 3.481 24.02x10-6 969 6.88 0.24 27.5 1.96 9.53 2.604 3.662 25.27x10-6 1011 6.92 0.48 27.67 2.35 10.51 2.703 3.834 26.45x10-6 1050 9.96 0.85 27.82 2.75 11.48 2.870 4.001 27.22x10-6 1089 6.99 1.01 29.97 J∞T4=J=aT4 Ln(J)=Ln(a)+4ln(T) Y= c + mx Y= -5.5692 + 0.7225x therefore slope is 0.7225 Results part 2: Black side of Leslie Cube: R (Ώ) T(K) Ln(T4-Ta4) Vr (mV) Ln(Vr) 3500 388 23.44 15.61 2.75 4150 382 33.34 14.00 2.64 4901 377 23.26 12.47 2.52 5750 372 23.17 11.15 2.41 6755 367 23.08 10.43 2.34 7707 363 23.0 9.42 2.24 White side of Leslie Cube: R (Ώ) T(K) Ln(T4-Ta4) Vr (mV) Ln(Vr) 3500 388 23.44 15.46 2.74 4150 382 33.34 13.567 2.64 4901 377 23.26 12.8 2.55 5750 372 23.17 11.55 2.45 6755 367 23.08 10.64 2.36 7707 363 23.0 9.86 2.24 Dull side of Leslie Cube: R (Ώ) T(K) Ln(T4-Ta4) Vr (mV) Ln(Vr) 3500 388 23.44 4.78 1.56 4150 382 33.34 4.77
7. Empirical Formula for copper sulfide:Cu2S In order to determine the empirical formulas, the mass in grams is converted to moles. Average mass of copper: 1.24g Cu Average mass of sulfur: 0.28g S 1.24g Cu X 1 mol Cu/ 63.55g Cu = 0.0195mol Cu 0.28g S X 1 mol S/ 32.07g S = 0.0087mol S Then, to find the smallest whole number ratio, we divided each number of moles by the smallest number. The ratio is 2Cu:1S, so the empirical formula is Cu2S 0.0195mol Cu / 0.0087mol S= 2 0.0087mol S / 0.0087mol S = 1 8. Balanced chemical equation for the formation of copper sulfide from copper and sulfur.
An irreversible, spontaneous and homogeneous reaction was researched at an ambient temperature of 22.7°C. The specific reaction is given in Equation 1. CH_3 COOCH_2 CH_3+ NaOH →CH_3 COONa+CH_3 CH_2 OH (1) It is necessary to determine the reaction kinetics for the reaction in Equation 1. Reaction kinetics is an unavoidable stepping stone needed for reactor design and optimising these reactors to their full potential. It is a measurement of how quickly a reaction occurs.
Sulphuric acid/ sulfuric acid is a type of organic acid with wide range of uses. It has the molecular formula of H2SO4 and a molecular weight of 98.079 g/mol. This organic acid has an appearance of a colourless to a light yellowish liquid with an odorless scent. Contact Process is a process that is commonly used to produce sulphuric acid. To date, there are three types of contact process which are the Single-Contact Process, Double-Contact Process and the Wet Contact Process.
As a result of our plotting, we got lnτ = 0,0032lnγ+4,4229 which is straight line. Also, R2 of this line is 0,8928 which shows close to linearity. Finally, according to our plotting, results show that our puree sample is pseudoplastic fluid which has exponential variation in shear stress vs shear rate and linear variation in logarithm of shear stress vs logarithm of shear rate. C) Vibro Viscometer Temperature(1/K) ln(Viscosity) 0,003288 5,505331536 0,003268 5,351858133 0,003253 5,247024072 0,00321 5,030437921 0,003162 4,795790546 0,003124 4,123903364 0,002977 3,317815773 Temperature(oC) (Viscosity) (mPa.s) 31,1 246 33