Chiller Lab Report

Method A) Prepare a NaOH solution (approximately 0,1M NaOH) 1. Place a clean, dry glass beaker on the electronic scale. 2. Determine the mass of the glass beaker. 3.

Then the scientist will observe the different rates of reaction with temperature. The Boltzmann distribution of law, indicates that high temperature makes molecules gain high energy contents (pubs.acs.org/doi/abs/10.1021/ja). In order to measure the reaction rate, the scientists must use the same volume of water at three different starting temperatures: hot tap

10. The solution was then placed under the fume hood for the chloroform to evaporate. 11. Methanol was filled in a test tube and placed into a water bath to heat up. 12

Throughout the mixing process, the clear red solution slowly changes to a denser red solution (Appendix figure 23). A thermometer was used for temperature checking. The beaker was removed from the hot plate when the temperature was found to be higher than 50 ℃. This was done to prevent a sudden gelation happen before all the active dissolved in the ethylene glycol. Moderate heating of the solution for a period of time is allowed to obtain a wet gel (Appendix figure 24).

References 1. First Aid during Emergency. National Portal of India. www.India.gov.in reviewed on

Shaking the flask gently for C2H5OH and Salicylic acid to dissolve and then keeping it covered so that C2H5OH did not evaporate. Label the solution as SS (stock solution), 0.0125 mol dm-3. Concentration of Salicylic Acid Mass/(Molar Mass)=Concentration ×Volume ⇒1.732/138.121= Concentration ×100cm3 Therefore, Concentration=0.121 mol dm-3 Preparing the HCl of varying concentrations- Volume of water required to dilute- Cinitial× Vinitial= Cfinal× Vfinal 0.1×V =0.01 × 100 V =

Answer 5: The Vive shower head has a maximum flow rate of 2.5 GPM. Specifications: Uses: For convenient showering and bathing Dimensions: Water Hose: 6.5 ft. Shower Head Length: 9.5 inches Face Plate: 4-inch diameter Materials: ABS plastic Chrome plating Brass hose nuts Stainless steel flexible hose Color: Face plate and nozzles:

Placed the cuvette sample in the Sprectrovis. After each run, the temperature of each sample was collected (to nearest 0.1°C). Disposed of the sample solution, cleaned the cuvette with DIW and repeated the latter procedure using the correct volumes for each new run from Table 1.

Pharmacologic treatments for diastolic heart failure and systolic heart failure are similar in the fact they both should include an ACEI, an ARB, beta blocker, and a diuretic. The following dosages and instructions are available for both heart failures. For ACEI, the treatment should be initiated at low dosages and slowly titrated upward if the patient tolerates them. Captopril should be taken by mouth on an empty stomach (at least 1 hour before meals) usually two to three times a day starting at 6.25 mg initially then increasing to 50 mg three times a day. If a patient is unable to tolerate an ACEI, an ARB would be beneficial because they do not create the same reaction.

Reflux condensation was performed with use of a heating mantle and retort stand. A total of 20 minutes was allocated for reflux, starting when the mixture first began signs of boiling(T0), to when the allocation of time was depleted(T20). The mixture was filtered into a 50mL conical flask, and 10mL of 100°C water. The extract was subsequently allowed to cool to room temperature, and decanted into a separating funnel. Liquid-Liquid (Polar-Nonpolar) extraction of DCM

Experiment 13.1 Purpose: To determine the ∆H of a chemical reaction. Materials: 2 Styrofoam cups, Thermometer, Vinegar, Mass Scale, Measuring tablespoon and ½ teaspoon, Lye, and Safety goggles.

The data that my group collected refutes our hypothesis because the difference and inconsistency of the breaths per minute in the ventilation rate and the breath volume in liters are all around the same amount. The p-value from the t-test for ventilation (breaths/minute) was 0.27, and for the breath volume (liters) it was 0.15. Both p-values are above 0.05, the Null Hypothesis is accepted. There is an overlap of data. The answer to the previous question is yes, mild and vigorous exercise affects the ventilation rate the same way as breath volume rates with little to no difference.