Online class Exercise two- Fall 2023 Essay & calculation (1)

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Part D: Food Calories Naked Juice Serving size 240 mL D1. Name of food product D2. Mass of food nutrients in one serving Fat Carbohydrate 33 g, Protein g, D3. Calculations for Calories (Cal) or kilocalories (kcal) per serving kcal (Cal) Carbohydrate Protein kcal (Cal) Fat kcal (Cal) D4. Total Calories (Cal or kcal) per serving kcal (Cal) D5. Calories (for one serving) listed on the label cal (Cal) D6. Percentage of total Calories from carbohydrate % (show calculations) D7. Percentage of total Calories from protein (show calculations) % D8. Percentage of total Calories from fat (show calculations) % Q 4. How does your calculated number of Calories in one serving compare to the Calories listed on the food product nutrition label? Comment on it.

nHMAC%3Def41415d9158412623399163083b2ede#10001 Spr. 2021 8 Gu HI, Leira v Sign Out Item 4 I Review | Constants | Periodic Table Alexandra decides to climb Mt. Krumpett, which is 5000 m high. She determines that this will require a total of 2250 kcal of energy for the trip. For her food supply, she decides to take nutrition bars. The label states that each bar contains 50 g of carbohydrates, 10 g of fat, and 40 g of protein. Part A How many nutrition bars should Alexandra pack? Express the number of bars numerically. > View Available Hint(s) ν ΑΣφ bars Submit Previous Answers 0V 12:33

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O Macmillan Learning One important test for kidney disease involves measuring the levels of bicarbonate (HCO,) in blood. Normal bicarbonate levels for a person ranging in age from 18 to 59 years old is 23-29 mmol/L. A lab purchased a new instrument to measure bicarbonate levels in blood and needs to certify it against their current instrument. The bicarbonate levels in the blood of a 38 year old woman was measured using the old and new instrument. The blood was tested 6 times using each instrument. The mean concentration of bicarbonate using the old instrument was found to be 24.4 mmol/L. with a standard deviation of 1.54 mmol/L. The new instrument yielded a mean concentration of 25.5 mmol/L with a standard deviation of 0.48 mmol/L... Determine if there is a significant difference in the standard deviations of the two sets of measurements made by the two instruments at the 95% confidence level. Determine the value of Fale Feale= 10.293 Determine the value of Fuble- Refer to the table…

com/document/d/1fmbZ8C0r5xkmCfMBaewOio5a_Qk-uMCald5KMc Byfvgr&esV A Done ting and Balancing Equations ☆ D O Format Tools Add-ons Help Last edit was seconds Normal text Arial 11 В I Equation: ZnS + AIP → Zn,P2 + Al,S, Balanced Equation Word Equation

Chlorite is reduced by bromide in acidic solution according to the following balanced equation: C10₂ (aq) + 4Br- (aq) + 4H+ (aq) → Cl(aq) + 2Br2 (aq) + 2H₂O (1) A[Br₂] If At A[C10₂] At during the same time interval? Express your answer to two significant figures and include the appropriate units. = 4.1x10-6 M/s, what is the value of A[C10₂] At Part B = O Rate = μA Value Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Units What is the average rate of consumption of Br during the same time interval? Express your answer to two significant figures and include the appropriate units. μАA Value Units ? ?

Green Chemistry and Atom Economy The purposeful design of chemical products and processes that minimize the use of environmentally hazardous substances and the generation of waste is known as green chemistry. Green chemistry is a philosophical approach that is being applied to many areas of science and technology, and its practice is summarized by guidelines known as the “Twelve Principles of Green Chemistry” (see details at this website (http://openstaxcollege.org/l/16greenchem) ). One of the 12 principles is aimed specifically at maximizing the efficiency of processes for synthesizing chemical products. The atom economy of a process is a measureof this efficiency, defined as the percentage by mass of the final product of a synthesis relative to the masses of all the reactants used: atom economy = mass of product/mass of reactants × 100%Though the definition of atom economy at first glance appears very similar to that for percent yield, be aware that this property represents a…

81°F Mostly sunny F1 ! 1 When sodium is exposed to chlorine, a violent chemical reaction occurs and sodium chloride (salt) is formed. What is the chemical equation for this reaction? Is this reaction endothermic or exothermic? How can you tell? Use the paperclip button below to attach files. F2 2 *Student can enter max 3000 characters 30- @ WW X DO B I U F ΕΞΩ F3 # 3 L F4 $ 4 R F5 % 01 5 F6 T ^ 6 F7 Q 다 Y F8 & 7 4 U Ci F9 *00 8 ***** F10 Po ( 9 CO F11 O ( ) 0 F12 P A Prt Sc { + = Insert Del Backspace | 4)

You are asked to prepare an injection containing 1 vial of vaccine. The vial contains 12.5 mg of Tice BCG, and is then diluted to 50 mL with sterile physiological saline. What is the final concentration in weight per volume?units - % w/v

CH,N, Et,0, CH,Cl, 30 min HO,

1 of 22 > Line 1 6 - 4 3. Answer Bank Line 1 shows that cogs are inversely proportional to sprockets. Line 2 1 3 5 6 . 7 8 . 6. Line 1 shows that cogs are directly proportional to sprockets. Sprockets Line 2 shows that cogs are directly proportional to sprockets. Line 2 shows that cogs are inversely proportional to sprockets. 13 人tv T W. Cogs 4.

Part C When aluminum, Al, metal is dipped in an aqueous solution of hydrochloric acid, HCI, hydrogen gas, H2, is produced with the formation of an aluminum chloride, AlCl3, solution. Write the balanced chemical equation showing the phases of reactants and products. Express your answer as a chemical equation including phases. • View Available Hint(s) ΑΣΦ ? DA chemical reaction does not occur for this question. Submit Provide Feedback Next >

00:58 :3 Question 3/ 15 ميز هذا السؤال Regarding the Analytical balance; which of the following statements is incorrect: 1. OThe balance should be kept clean. 2. ONever weigh an object lighter than the capacity of your balance. 3. OThe object to be weighed should be at room temperature. 4. O Chemicals are never placed directly on the balance pan. Previous Next C e 2010, T H t u verity Romer ed All

Short Answer / Problem Solving (Show your calculations to earn full credit): 10) A chemical reaction requires 31.39 kJ. How many kilocalories does this correspond to?

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A catalytic converter contains between 3.00 and 7.00 g of Pt. The current price of platinumis $26.89 per ounce. What is the range in cost of Pt in one catalytic converter?