Yellow Zoomed in 1.0 0.9- 0.8- 0.7 Ch ng 0.6- 0.5- 0.4 0.3 0.2- 0.1- 1.13 0.66 1.71 3.5 3.0 2.5 2.0 1.5 1.0 0.5 4.0 Chemical Shift (ppm) 7.5 7.0 6.5 6.0 5.5 5.0 4.5 Normalized Intensity
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- It is found that up to 0.0110 g of SrF2 dissolves in 100 mL of aqueous solution at a certain temperature. Determine the value of Ksp for SRF2. 1 2 NEXT > Based on the given values, fill in the ICE table to determine concentrations of all reactants and products. SFF2(s) Sr**(aq) 2 F (aq) + Initial (M) Change (M) Equilibrium (M) 5 RESET 0.0110 8.76 x 10-5 8.76 x 10-4 1.75 x 10-4 1.75 x 103 -0.0110 -8.76 x 10-5 -8.76 x 10-4 -1.75 x 10-4 -1.75 x 103 +x +2x -2х -X 8.76 x 10-5 + x 8.76 x 10-5 1.75 x 10-4 + 2x 1.75 x 10-4 - 2xYellow Dye Calibration Curve y = 254.78x - 0.1414 R? = 0.9792 2.5 1.5 1 0.5 0.002 0.004 0.006 0.008 0.01 0.012 Concentration(M) 3. 2. Absorbance(b) TABLE 3 shows data phase equilibrium diagram for carbon dioxide. TABLE 3 Pressure (atm) Temperature (°C) Triple point Critical point 5.2 -57 73 31 (i) Sketch a phase diagram for carbon dioxide (ii) Explain the phase changes that could possibly occur when a sample of carbon dioxide in a closed vessel under 1 atm pressure and a temperature of -78°C is pressurised isothermally to 10atm, followed by isobaric heating to 20°C.
- Using this table for the standard durve of cobalt (II) solution in UV Vis Molarity (M) Absorbance 0.025 0.056 0.05 0.131 0.075 0.221 0.1 0.311 0.125 0.399 0.15 0.492 0.175 0.592 Determine the (3 sig figs) A. R squared value of the curve B. value of the molar absorptivity constant if the path length is 10 cm? C. Unknown concentration if it showed an absorbance value of 0.320?The following results were obtained from an analysis of copper content in four representative samples using flame atomic absorption spectroscopy. Suppose the true value is environmental 5.10 ppb. Sample 1 2 3 4 Cu content (ppb) 5.34 5.37 5.44 5.22 Comment on the data obtained in terms of accuracy and precision. (iii)5.42. For the reaction 2Na (g) = Na₂ (g) the following values of K have been determined (C. T. Ewing et al., J. Chem. Phys. 1967, 71, 473): T(K) 900 1000 1100 1200 K 1.32 0.47 0.21 0.10 From these data, estimate AxH for the reaction. (Hint: using the function of linear regression to solve the problem)
- What is the concentration (M) of the following compound as measured in a 1.000 cm cuvette: Molar absorptivity constant: 3525 (M*cm)-1 and Absorption: 0.5334 Hint: Use the Beer law to solve this problem Group of answer choices 1.513E-04 1.513E+04 1.513191E-04 1.513191E+04 1.5E-04A group of two students obtain the following data for the dissolution of borax. Using the data given, calculate AH-in kJmol-1 for the for borax dissolution studied. Record answer to 2 decimal places. R= 8.314 Jmol-1K-1 Measurement 20.0 °C 50.0 °C Volume of 0.20 M HCl used (ml) 3.97 11.55 [Borate] (M) 0.0397 0.1155 Ksp 0.000250 0.006163 1/T (K-¹) 0.003413 0.003096 Type your numeric answer and submitIntensity (counts)- CRYSTALLINE STRUCTURE MORPHOLOGY COMPOSITION TOPOGRAPHY 32000 NIK Cr 0.01 Energy (keV) Figure 5.32. EDS spectrum of a high-temperature superalloy. COMPOSITION MORPHOLOGY TOPOGRAPHY CRYSTALLINE STRUCTURE 0 Tags #192 R Helys 10.00
- When gypsum (CaSO4 2H2O) is heated to 433 K, itconverts to the hemihydrate CaSO4 12H2O, and at 463 K, it forms g-CaSO4. Calculate the % weightchanges at 433 and 463 K, and sketch what youexpect to see in a TGA curve.% transmittance alkane 4000 2.0 1.8 3500 1.6 CH (sp³) 3000 1 (nonet) .... 1.4 Molecule 2 2500 2000 wavenumber (cm-¹) 1.2 6 (doublet) 2 (quintet) 1.0 8 (ppm) 3 (triplet) 0.8 1500 0.6 0.4 1000 0.2 500 0.0a) Make A grouped frequency distribution of the data 4,16,32,52,56,62,73,81,83,88,94,100,102,110,138,152,165,173,176,184,186,202,204,207,209,223,229,238,248,249,262,264,270,272,279,281,285,287,293,296,305,309,314,320,321,323,337,353,356,360,362,366,371,373,381,393,395,398,403,407,418,419,426,429,433,434,435,444,446,447,450,451,469,486,508,513,521,522,524,529,533,538,544,551,554,558,560,561,562,572,596,607,609,621,624,652,657,660,677,695,701,702,712,713,718,724,726,740,750,764,765,766,773,778,781,785,786,795,816,857,861,864,873,874,876,885,888,894,899,900,901,912,913,918,920,933,941,944,945,957,961,962,965,969,972,982,983,990,991,996 b) Draw Histogram for the frequency distribution table made