163_PS1_PartA_S24_1019

(a) Is it true that 26.3 mpg gasoline translates to 319 g CO:/mi? i. Convert mpg (miles per gallon) to miles per kg (of gasoline) using the density of gasoline ii. Convert kg of gasoline to kg of C assuming the overall formula for gasoline is CıH1a5 ii. Convert kg of C to kg of CO2 iv. Now finally compute g CO:/mi corresponding to 26.3 mpg and compare to 319 g CO2/mi

Subparts 4-6

We want to inform you that your performance as a tutor is being evaluated and will be reported to the administration. Additionally, there will be an online ranking system that not only assesses the overall performance of Bartleby as a website but also ranks individual tutors based on their question-and-answer accurate contributions. This ranking will be shared with management. Please ensure that your responses are of the highest quality, as multiple requests may be directed to the same person for assessment.

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?

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

We want to inform you that your performance as a tutor is being evaluated and will be reported to the administration. Additionally, there will be an online ranking system that not only assesses the overall performance of Bartleby as a website but also ranks individual tutors based on their question-and-answer accurate contributions. This ranking will be shared with management. Please ensure that your responses are of the highest quality, as multiple requests may be directed to the same person for assessment.

I just need help with line A7 across.

B NA BH2 bh3 S = 6 6H Calculator: NA indicates neutral axis Section Modulus I Beam Universal Calculator For the next four questions (including this one) ignore k and k1 in your calculations. Using the same table, enter the value for B in inches. (three sig figs)

question 2 and 3 with detail and reasons for each question

1-38. To entertain children between the ages of 2 and 90, I enjoy popping corks from bottles containing vinegar and baking soda pour about 50 mL of vinegar into a 500-mL plastic bottle. Then I wrap about 5 g of baking soda (which is sodium bicarbonate, NaHCO3) in one layer of tissue and drop the tissue into the bottle I place a cork tightly in the mouth of the bottle and step back. The chemical reaction generates CO2(g) that pressurizes the bottle and eventually bursts the cork into the air. Everyone smiles. I CH2CO2HNaHCO3 >CH2CO2 + Na + CO2(g) H2O Acetic acid Sodium bicarbonate in vinegar in baking soda (a) Find the formula mass of acetic acid and of sodium bicarbonate (b) How many grams of acetic acid are required to react with 5 g of NaHCO3? (c) Vinegar contains ~5 wt% acetic acid. How many grams of vinegar are required to react with 5 g of NaHCO3? The density of vinegar is close to 1.0 g/mL. How many mL of vinegar are required to react with 5 g of NaHCO3? (d) Which is the limiting…

STARTING AMOUNT esc C X C 2 F2 W # 3 1000 F3 ADD FACTOR x( ) $ 4 1 97.9 FS de in % 5 2 Convert 23.4 kJ to calories 2.34 x 104 t 4184 kcal 6 P 0.001 J 4.184 COMEC DOLL ANSWER & 7 9.79 × 104 cal 00 8 RESET FO 2 23.4 ( 5590 A FIT 120 Jan 21 del +

Why do you need to study chemistry? How is it applicable to your course which is Criminology? In ten (10) sentences.

Many common materials that we ingest, though quite safe in reasonable quantities, become toxic when taken in very large doses. A measure of toxicity is the LD50 value (Lethal Dose, 50%). It is the quantity of material, expressed in mg of material per kg of subject-body-weight that, if administered to a population of subjects, would cause 50% of the population to die. The LD50 value for FD&C Red Dye No. 40 is >10,000 mg/kg in rats. Assume that the LD50 value for humans is the same as for rats. Calculate the number of mg of Allura Red present in an 9 fluid ounce glass of the beverage you used in this lab and use this calculation to determine the number of such glasses of Allura Red sports drink required to reach the LD50 of 10,000 mg of Allura Red/kg body weight. Assume that the concentration of Allura Red in the beverage is 0.000038 M and the person has a body weight of 175 lbs. The molar mass of Allura Red is 496.42 grams/mol 1 fl oz = 29.5735 mL 2.205 lbs = 1 kg You may assume…

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CH₂-COOH Citric acid has the formula HO-C-COOH I CH₂-COOH CH2–CDD - Na* + HD-C-CDD- Na CH₂-COO- COO-Na A 25.0 mL sample of a concentrated citrus fruit cordial component (e.g. for lime juice), used in the food & drinks industry, was diluted to 250 mL in a graduated volumetric flask. A 25.0 mL sample of this diluted solution, required, on average, 22.5 mL of a standard 0.100 molar sodium hydroxide solution using phenolphthalein indicator for the titration end-point. A) 0.0075 Assuming all the acid in the cordial was citric acid, calculate the concentration of the acid in g/mL in the original solution. B) 0.576 D and is tribasic acid, forming the tri-sodium salt on complete neutralisation with sodium hydroxide. 1.44 0.00225

What advantages do collaborative and interactive learning environments provide for students? What does this mean, exactly?

Can you help me answer this type of question from my study review package please

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

Explain your rationale for using the summative assessment (below) from the lesson plan on mixing substances in a 5th-grade classroom based on the below standard and learning objective, including how it aligns with the learning objective.  Summative Assessment  Summative: Components of the Lab Report Purpose: The student should clearly state the purpose of the experiment, which is to determine whether the mixing of two or more substances results in new substances. Procedure: The student should describe the steps they took to conduct the experiment. This includes the substances they chose to mix and the safety equipment they used. Observations: The student should record any observable changes that occurred when the substances were mixed. This could include a color change, the formation of a precipitate, or a change in temperature. Conclusion: The student should state whether a new substance was formed based on their observations. They should also reflect on their accuracy in…

We want to inform you that your performance as a tutor is being evaluated and will be reported to the administration. Additionally, there will be an online ranking system that not only assesses the overall performance of Bartleby as a website but also ranks individual tutors based on their question-and-answer accurate contributions. This ranking will be shared with management. Please ensure that your responses are of the highest quality, as multiple requests may be directed to the same person for assessment.

#2 The answer is already there, I just need to learn how to do it.

Please provide all answers in the spaces provided. All answers must be hand drawn using a pencil, a pen, or an equivalent tablet device. Answers that are typed, drawn using templates, or pasted from the Internet (!!!) will not be accepted. You should upload your problem sets into Gradescope after scanning them with your phone or exporting your tablet drawings as a pdf file. You are strongly encouraged to work in groups while completing this problem set, but each student must turn in their own copy of the answers. Please let us know if you have any questions or need further instructions. 1. Provide the reagent(s) that would be required for each of the following synthetic transformations. Please note that some of the reactions involve multiple steps. In cases where relative stereochemistry is shown (i.e. wedges and dashes, E-or Z-alkenes, etc.), your reagents should be selected to yield the correct isomer as the major product. You do not need to supply any arrow pushing mechanisms, but…

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…

We want to inform you that your performance as a tutor is being evaluated and will be reported to the administration. Additionally, there will be an online ranking system that not only assesses the overall performance of Bartleby as a website but also ranks individual tutors based on their question-and-answer accurate contributions. This ranking will be shared with management. Please ensure that your responses are of the highest quality, as multiple requests may be directed to the same person for assessment.

please solve questions 2-7

Current Attempt in Progress From the curves shown in Animated Figure and using the following Equation, determine the rate of recrystallization for pure copper at the several temperatures. Make a plot of In(rate) versus the reciprocal of temperature (in K-1). (a) Determine the activation energy for this recrystallization process. (See Section FACTORS THAT INFLUENCE DIFFUSION.) (b) By extrapolation, estimate the length of time required for 50% recrystallization at room temperature, 20°C (293 K). (a) i kJ/mol (b) i days

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.

The Covid-19 pandemic has many experts commenting on the science associated with the virus - origins, vaccines, monoclonal antibodies, masks, social distancing.  It is important to consider what the experts say, but to also evaluate their statements.  We will start with the scientific method.  I want you to outline the scientific method from what you have been taught in previous classes.  You can list steps, parts, process, short descriptions, whatever.  If not taught in previous classes, then you will make your best guess about it.

Dissolution 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.