Dis 2 Mod 1

8. A student made a series of measurements of Mg* concentration in drinking water giving the following values: 269 ppm, 215 ppm, 248 ppm, 242 ppm, 238 ppm, 259 ppm, 265 ppm What is the experimental (or calculated) Q value for this data set? Determine if any values should be rejected from this data set at the 90% confidence level.

What is a possible testable question (in correct format) That Mrs love might ask for this Sanrio?

A chemist working as a safety inspector finds an unmarked bottle in a lab cabinet. A note on the door of the cabinet says the cabinet is used to store bottles of diethylamine, pentane, acetone, carbon tetrachloride, and tetrahydrofuran. The chemist plans to try to identify the unknown liquid by measuring the density and comparing to known densities. First, from her collection of Material Safety Data Sheets (MSDS), the chemist finds the following information: liquid density g 0.71 mL diethylamine olo Ar pentane 0.63 mL g 0.79 mL acetone g 1.6 mL carbon tetrachloride g 0.89 mL tetrahydrofuran

Please answer the following question:

A chemist working as a safety inspector finds an unmarked bottle in a lab cabinet. A note on the door of the cabinet says the cabinet is used to store bottles of chloroform, ethanolamine, dimethyl sulfoxide, pentane, and carbon tetrachloride. The chemist plans to try to identify the unknown liquid by measuring the density and comparing to known densities. First, from his collection of Material Safety Data Sheets (MSDS), the chemist finds the following information: liquid chloroform density 1.5 g cm 3 ethanolamine 1.0 g-cm dimethyl sulfoxide 1.1 g cm pentane 0.63 g-cm carbon tetrachloride 1.6 g-cm Next, the chemist measures the volume of the unknown liquid as 0.688 L and the mass of the unknown liquid as 543. g. Calculate the density of the liquid. Round your answer to 3 significant digits. Given the data above, is it possible to identify the liquid? If it is possible to identify the liquid, do so. gcn cm yes no chloroform ethanolamine dimethyl sulfoxide pentane carbon tetrachloride X 5…

A chemist working as a safety inspector finds an unmarked bottle in a lab cabinet. A note on the door of the cabinet says the cabinet is used to store bottles of acetone, ethanolamine, carbon tetrachloride, methyl acetate, and pentane. The chemist plans to try to identify the unknown liquid by measuring the density and comparing to known densities. First, from her collection of Material Safety Data Sheets (MSDS), the chemist finds the following information: Next, the chemist measures the volume of the unknown liquid as 0.940 L and the mass of the unknown liquid as 663. g.

A chemist working as a safety inspector finds an unmarked bottle in a lab cabinet. A note on the door of the cabinet says the cabinet is used to store bottles of ethanolamine, pentane, chloroform, acetone, and glycerol. The chemist plans to try to identify the unknown liquid by measuring the density and comparing to known densities. First, from her collection of Material Safety Data Sheets (MSDS), the chemist finds the following information: Next, the chemist measures the volume of the unknown liquid as 1049. cm and the mass of the unknown liquid as 1.07 kg.

A chemist working as a safety inspector finds an unmarked bottle in a lab cabinet. A note on the door of the cabinet says the cabinet is used to store bottles of diethylamine, carbon tetrachloride, tetrahydrofuran, glycerol, and pentane. The chemist plans to try to identify the unknown liquid by measuring the density and comparing to known densities. First, from his collection of Material Safety Data Sheets (MSDS), the chemist finds the following information: density 0.71 g-cm liquid diethylamine carbon tetrachloride tetrahydrofuran glycerol pentane 1.6 g-cm 0.89 g-cm -3 1.3 g-cm 0.63 g.cm Calculate the density of the liquid. Round your answer to 3 significant digits. Given the data above, is it possible to identify the liquid? -3 -3 -3 Next, the chemist measures the volume of the unknown liquid as 0.741 L and the mass of the unknown liquid as 523. g. If it is possible to identify the liquid, do so. -3 g.cm O yes O no diethylamine. carbon tetrachloride tetrahydrofuran glycerol. pentane…

Assume the average person needs 75mg of vitamin C per day. If you were to travelacross the Atlantic Ocean (a 50 day voyage), how much (in volume) of your commercialsample would be needed?

A4. Investigate the common disorders caused by unhealthy lifestyle and connect them to chemistry? Find innovative solutions for the use of chemicals clinically.

Based on a grade 11 chemistry student, answer the following question based on the provided table: Use the information provided in table 3 to estimate toxic dose (in number of pills) for Mary based on her weight of 50 kg. You must show your work using dimensional analysis.

Let me tell you about their task: The students were provided with 5 drinks (sports/soft drinks) and they were asked to determine the glucose concentration in these drinks in the units of g/100mL. (Why these units? Well, once the students have the concentrations in g/100mL they will be able to compare their values with the nutritional values given on the drink bottles’ labels). The samples of the five drinks were all diluted 1/100 (i.e. by a factor of 100). This was an essential step in the method because, without it, the machine used to analyse the glucose concentration (spectrophotometer) would have given an error as the concentration would have been too high for accurate detection. What this means for the students is that the dilution factor will have to be taken into consideration in their calculations (remember the aim is to calculate the concentration in the original drink and not in the diluted drink). The students decided to save time and form five groups where each group was…

When something cannot be directly obeserved, it can be represented by a Group of answer choices Model Graph Hypothesis Theory

Dipping into health When blood pressure is measured over a 24-hour period, this is referred to as ambulatory blood pressure monitoring, three patterns arise. Here are samples of three different individual. Let's call them Dick (1), Tom (2) and Harry (3). 1 2 3 Patient's Paticnt's BP BP Palicet's Upper limit Upper limit 12 Upper lim 124 120 Lower limit Lower Lower limit Time (houn after wakening) Time (hours after awakening) Time (hours after awakenin SYSTOLIC BP (mm Hg)

0 / 5,000                         What is your question?   photo 0 / 2 Images Ask an Expert Submit your question Answers in as fast as 30 minutes* Questions are typically answered in as fast as 30 minutes* Like you, we deeply value honesty and integrity. Learn about our honor code. *Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers. Get 24/7Homework Help! Ask a homework question in 30 subjects...and growing! Subject matter experts are on standby 24/7. Get a detailed solution in as fast as 30 minutes.* Recently asked questions     About FAQ Honor Code Code of Conduct Sitemap Careers Become an Ambassador Refer a Friend Contact Bartleby Contact Research (Essays) High School Textbooks Literature Guides Concept Explainers by Subject Essay Help

I need help in answering this. Thank you.

Suppose your topsoil has a cation-exchage capacity of 20. cm(+)/kg soil and a bulk density of 1.41 g/cm3. What is the potential storage capacity of 7.0 inches of this topsoil for calcium? Please calculate one measure of this capacity: If the CEC were empty of calcium, then how much CaCOg (in tons CaCO3/acre) would you have to add to the top 7.0 inches of soil to add 100% of the CEC as calcium? Your Answer: Answer units

Based on a grade 11 chemistry student, answer the following question based on the provided tables: Use the information provided in table 3 to estimate toxic dose (in number of pills) for Mary based on her weight of 50 kg. You must show your work using dimensional analysis

Calculate the water activity/ water content based on the nutrition information given on the image. Elaborate your answer.

purses/58591/days/1492616/assessments/623504/variants/623504/take/25/ Question 24 Which is the best description of the regulation goals set forth by the Kyoto protocol of 1997? A a suggestion to car manufacturers to develop less-polluting vehicles a mandate for industries to use air pollution control devices, such as scrubbers and electrostatic precipitators a goal set to decrease the carbon dioxide (CO2) emissions from anthropogenic activity, with a focus on stopping the rise of global temperature a goal and promise to make efforts to reduce greenhouse gas emissions

Which of the following best define systems thinking in chemistry? Systems thinking is learning about chemistry within real-word contexts. Systems thinking focuses on the interdependence between chemistry components, as well as the influence of chemistry on other systems. Systems thinking is a way of thinking about chemistry systematically.

Based on a grade 11 chemistry student, answer the following question based on the provided information in the provided information: Do you think Mary died due to an overdose of medication? Use evidence from your calculations to support your reasoning. Mary's weight is 50 kg.

Choose any class of biological molecule and describe a disease or condition that is related to a problem with your body using that molecule.

Jollibee Burger     Item                             Sodium(mg)                Fat(g)              Calories           Item cost($) Beef Patty                               50                                17                   220                  $0.25 Bun                                         330                             9                      260                  $0.15 Cheese                                     310                              6                     70                   $0.10 Onions                                     1                                  2                     10                    $0.09 Pickles                                     260                              0                      ,. 5                   $0.03 Lettuce                                    3                                  0                      4                      $0.04 Ketchup                                   160                              0                      20…

Station 2: Density column In the graduated cylinder, you have molasses, water (blue), corn oil, and ethanol (red). They have the following densities: Substance Molasses Water Corn Oil Ethanol Density 1.45 g/mL 1.0 g/mL 0.92 g/mL 0.79 g/mL Polarity Polar Polar Nonpolar Polar Viscosity High Low Low Low 1. Explain why the column is arranged in the order it is according to density.

As you investigate the relationship of oil and plastic, add “zoom out boxes” to the images below. Each “zoom-out box” should provide a deep explanation of the relationship between oil, water bottles, and society. ( Use the images from the model )

The doctor increases the frequency of the patient's dialysis to six times a week using an ultrafiltration rate of 6.5 mL/h/kg. At a later dialysis session, the patient's pre-weight is 107.2 kg. The patient will continue to receive 150 mL of intravenous saline and antibiotics, and his rinse back is 350 mL. Based on his EDW of 105.5 kg, how many hours should dialysis be performed to reach his goal? Assume all fluids have a density of 1.00 g/mL. time: 107.4 Incorrect If all six of his sessions each week are the length calculated in the previous question, how many hours of dialysis time does the patient now require each week? 644.4 time: Incorrect hours per week 4 hours h

New employees at Avondale Industries’ unmanned systems production line in Denver, CO, participate in employee training under the direction of the training and development department, but the line managers conduct the actual training. During the last two trainings, the line managers cut the sessions short and explained that the employees would receive better training while working on the production line. The trainer responsible for the program understood the line managers’ viewpoint about developing skills used on the line but needed them to see that training should provide more than just developing those specific skills. Which of the follow statements best explains why training should provide a longer-term view than just teaching line workers the skills needed to perform satisfactorily in their current jobs?     Giving line workers expanded training helps them understand more than specific skills; it also helps them become more confident contributors.   Training with a…

1. Certified Reference Material (CRM), GSS-5, is certified to contain 40.67 ± 3.33 mg/kg of Ni in soil. An analysis of the CRM gives values of 40.39, 41.98, 43.64, 44.38, and 45.96 mg/kg. Determine the tcalc. value and determine if your results differ from the expected results at the 90 % confidence level?

Drugs consumption rates by fraternity and sorority members were found to be what than those of non greek affiliated college students

Answer questions 1 and 2 according to the data given. Dater Weight of cream i: 326 kỳ. Table shows some data obtained directly from Lactascan instrument. Fat % SNF % Lacto- density 27.32 30.23 Raw milk 4.15 7.97 Skim milk 0.08 8.26 Q1. Calculate fat percent of creamn A) 46 B) 28 (C) 3D D) 0.046 آدرما 396 100 x Q2. Calculate efficiency of the cream separator. A) 100% B98% C) 97% D) 96% E) 87.2% amount 2500 L E) 0.28