Rewrite this measurement with a simpler unit, if possible.gmL g10.0gmLmL s

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Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter4: Calculations Used In Analytical Chemistry

Section: Chapter Questions

Problem 4.3QAP

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Use the graph below to answer the following questions. (a) Derive the equation for the straight line, = mx + b. (b) What is the value of y when x = 6.0?
1-86 The specific heats of some elements at 25oC are as follows: aluminum = 0.215 cal/g · oC; carbon (graphite) = 0.170 caI/g oC; iron = 0.107 cal/g mercury = 0.033 1 caI/g oC. (a) Which element would require the smallest amount of heat to raise the temperature of 100 g of the element by 10oC? (b) If the same amount of heat needed to raise the temperature of 1 g of aluminum by 25oC were applied to 1 g of mercury, by how many degrees would its temperature be raised? (c) If a certain amount of heat is used to raise the temperature of 1.6 g of iron by 10oC, the temperature of 1 g of which element would also be raised by 10oC, using the same amount of heat?
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
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.
© Macmillan Learning Perform the calculation and report the answer using the proper number of significant figures. Make sure the answer is rounded correctly. 1.012 × 10-³ J = (0.016456 g) (298.3682 298.3567) K g. K
Molar mass of sucrose = 342.3 g/molΔT = 2.14 °Cqwater = 5.37 kJqcal = 0.899 kJDivide the mass of sucrose used by its molar mass to determine the number of moles. Be sure to convert the mass from units of milligrams to units of grams.
Convert and use sig figs 254.3g to kg
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…
Absolute zero is the point at which O a. a straight-line graph of 1/V versus P at constant T intersects the origin. O b. a straight-line graph of V versus T (K) intersects the origin. Oc. gaseous helium liquefies. Od. a straight-line graph of V versus T (°C) intersects the origin. O e. a straight-line graph of V versus 1/P at constant T intersects the origin.
13. The speed of a particular automobile is 45 mph (miles per hour). Use the following relationships to calculate the value in units of km/s (kilometers per second). 1 km = 0.62 mi 1 h = 60 min 60 s = 1 min %3D 14 Na me the following ooidle ond h0808 ond idontifu on i
d. KMno. H,C H,C е. OH CH, KMno,
Calculate the percent difference between x2 and x4 according to the equation below. (Assume x2 to be the accepted value.) Record the calculation in your notes. x2 = 100.4 kJ x4 = -100.4 kJ %difference = experimental value - accepted value x 100% accepted value

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Rewrite this measurement with a simpler unit, if possible. gmL g 10.0 gmLmL s