Which of the labeled points in the graph below represents the equivalence point? E 14.00 10:00 A B D 6.00 4.00 2.00 0.00 0.00 2.00 D 4,00 Volume NaOH, 6.00 KOO 10.00
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- What does it mean forward or backward and does the k=5.0×10^23 even play a role in thisConcentration (mg/ml) Time (min) 8.5 0.5 6.8 5.4 1.5 4.0 2 3.2 2.5 2.5 3 What will be the slope of the line using the given first and second values? What will be the y-intercept, still using the given first and second values? Completely state the equation of the line. nlcot olN5Dissolution Distilled H20 Concentration 0.01 M HCI Concentration (mg/ml) Time Total amount A Total amount A (mg/ml) (mg) (mg) 5 0.16 0.1 10 0.24 0.18 15 0.35 0.25 20 0.48 0.34 25 0.58 0.4 30 0.67 0.5 1. Plot the given data on an ordinary paper and find the slope for each line then calculate the IDR constant for aspirin in the two dissolution media, water and HCI. NOTE: Slope of the calibration curve = 1.0 (mg/ml and saturation solubility of salicylic acid is equal to 2.0 gm/L.
- -|· 4.0 H3C 3.0 Match the peaks in this spectrum with hydrogens on the structure below. A) I: 0.91 ppm II: 3.29 ppm III: 1.52 ppm IV: 3.23 ppm H₂ CH3 CH 2.0 CH3 IV ppm 1.0 B) I: 0.91 ppm II: 3.29 ppm III: 3.23 ppm IV: 1.52 ppm C) 1: 3.23 ppm II: 3.29 ppm37. A student recorded the following data for the alcohol content of a blood sample: % C.H5OH: 0.084, 0.068, and 0.079. Calculate the 95% confidence limit for the average of this data.Calculate the value required. (9.52 x 104) (2.77 x 10-5) (1.39 x 107) (5.83 x 10²) (9.52 x 104) (2.77 x 10-5) (1.39 x 107) (5.83 x 10?) 3.2541 x 10-5 3.2541 x 106 3.2541 x 105 3.2541 x 10-
- Chrome File Edit View History Bookmarks People Tab Window Help HOc Dashbc X E Buy Es: X G find so X © Periodi x A ALEKS X M Mathwa X Hcc Chapte x H New m x ト→ C A www-awn.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-IQİHQRDYV_6Ux63SypJXz0Coxvwqgg4JkWI7Cge0xmXkyh... O GASES Using Charles's Law Jacqueline An arctic weather balloon is filled with 48.4 L of helium gas inside a prep shed. The temperature inside the shed is 9. °C. The balloon is then taken outside, where the temperature is -42. °C. Calculate the new volume of the balloon. You may assume the pressure on the balloon stays constant at exactly 1 atm. Round your answer to 3 significant digits.The solubility of PbCO3 in water at 25°C is measured to be 7.3x10−5g/L. Use this information to calculate Ksp for PbCO3. Round your answer to 2 significant digits.1. (answer the questions in the tan boxes in the tables below each question) A student conducted an investigation to determine the effect of water temperature on the amount of sugar that dissolves in a beaker of water. Identify components for trial 1 of this investigation. Beaker Number 1 2 3 4 Amount of Water (mL) 100 100 100 100 Amount of Water (mL) Trial 1 Temperature of Temperature of Amount of Sugar Sugar (°C) Water (°C) Dissolved (g) 20 20 20 20 Temperature of Sugar 5 10 15 20 185 189 194 204 Temperature of Water Terms Variable Constant Amount of Sugar Dissolved
- Without doing any calculations, match the following thermodynamic properties with their appropriate numerical sign for the following exothermic reaction. 2H2(g) + O2(g)–→2H20(g)3. Corev was synthesizing a chemical in the laboratory. He used different purification techniques to try to obtain a pure compound. The melting point of the pure compound is 65 degrees. When he tested his compound in the lab the melting point he obtained was 62-68 degrees. Is the product he synthesized pure? 4A company was low on copper metal and decided to use some chemical additives just this once to some copper wiring they were installing in a house. How will this impact the conductivity of the wiring?A sample of 75 mg of adipic acid and 75 mg of salicylic acid was dissolved in boiling water. The solution was slowly cooled to room temperature and then cooled further in an ice bath. The mass of the resulting crop was 125 mg. The melting point of the resulting crop was 124.0 - 142.1 oC (Refer to table E5.4). What is the amount of adipic acid in the crop? Group of answer choices 60 mg 50 mg 90 mg 75 mg