Part A: Complete the flow chart with the steps necessary for preparing the pH probe. pH Probe Cleaning and Reading 200 mL 150 | tissue 100 Rinse with water. 50 Blot dry. Low pH Solution Enter the pH value into the device Repeat the steps above for the high |pH buffer solution. Input the pH values into the device as they are measured. Click OK. Check the calibration by measuring the high pH buffer solution. Lastly, save the calibration setup. Answer Bank tissue device Rinse with water. Blot dry. pH high middle save

6. Suppose you have a mixture of water and your 2-bromo-2-methylbutane product in a separatory funnel. Use densities to predict which phase will be the top layer in the funnel. a. 2-bromo-2-methylbutane (organic phase) b. water (aqueous phase) c. there would only be one phase since the substances are miscible

Consider an oxygen atom contained in a neutral molecule, like those in Model 1. Give the name for the electrons around the oxygen that are not involved in a covalent bond. What bond angle is formed when oxygen forms two single bonds? What shape is formed? Which functional groups in Model 1 are polar? When a carbon atom forms a double bond to an oxygen atom, it is called a carbonyl group. Which functional groups in Model 1 contain a carbonyl group?

Why are ducks waterproof? It’s because they produce copious amounts of oils from their uropygial glands and spread it across their feathers. In this exercise, we’ll be investigating the molecular structure of one of these preen oils to determine how it keeps ducks dry. Q.5 - Preen oil is actually a complicated mixture of many different organic compounds, such as the structure seen previously.. Ornithologists have determined that birds often use preen oil compounds for scent recognition. Below, several different chemicals isolated from preen oil are shown, along with their vapor pressures at room temperature. p-cymene has the highest vapor pressure, meaning it is the most easily evaporated compound of the three listed. Explain why p-cymene has a higher vapor pressure at room temperature compared to the other compounds. Make sure to explain what holds the p-cymene in the sample. (Image attached)

In this treatment level, part of suspended solids and suspended organic matter is removed. * Secondary Preliminary Tertiary O None of the above

O Fash point of the given 272 °C=522 °F A flash point that is too low can be a fire hazard and may indicate contamination with Fire point of the given sample 320°C= 608°F more volatile components. Identify one volatile component in a petroleum mixture which may reduce the flash point of the mixture.

Please answer questions 3 and 4 and show work please. Thank you

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Based on a grade 11 chemistry student, answer the following question based on the provided table:Part B:  Other Cases EmergeRead Case File 3.  Based on these new cases, it now seems clear that people are being poisoned by something in the Tylenol. Fast-Acting PoisonsWhatever the poison is, it is very fast acting as victims collapsed within minutes of taking the pills. After some research, and based on your love of Agatha Christie novels, you find five common poisons that work quickly and can cause death within a few hours – aconite, coniine, cyanide, nicotine, strychnine. Use the information contained in table 6 to determine the empirical formula, molecular formula, and fatal volume for the two poisons not completed in the table.

Remaining Time: 28 minutes, 52 seconds. Question Completion Status: A Moving to another question will save this response. Question 1 Which alcohol will be more soluble in water? ОН O A. OH O B. ÓH OH OH O E. A Moving to another question will save this response.