Choose ONE of the following conversion problems to complete. Report your answer with the correct number of significant figures. a. Convert 0.510 in/ms to km/hr. b. Calculate the mass in Ib of 1.00 qt of benzene. The density of benzene is 0.879 g/mL. Convert the density of ethanol (0.79 g/mL) into units of Ibs/m3. C.

Choose ONE of the following conversion problems to complete. Report your answer with the correct number of significant figures. a. Convert 0.510 in/ms to km/hr. b. Calculate the mass in Ib of 1.00 qt of benzene. The density of benzene is 0.879 g/mL. Convert the density of ethanol (0.79 g/mL) into units of Ibs/m3. C.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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For the part circled in red where we are converting to nm , why do we multiply by 10^-9 m instead of dividing by 10^9 nm? I noticed in other problems we use 1m/10^9 nm as conversion factor, but in this one that gives us the wrong answer. That is the only question for this problem.
2.Based on the data, calculate the mean value of the mass of 15 mL of ethanol. Calculate the average deviation from the meqan of the seven measurements. sample 1: 11.852g sample 2: 11.847g sample 3: 11.838g sample 4: 11.840 sample 5: 11.842 sample 6: 11.845 sample 7: 11.837 As you can tell I've worked and reworked this problem and I still can't figure out what I'm doing wrong.
Using conversion factors solve each of the following clinical problems a) The physician has order 1.0g of tetracycline to be given every six hours to a patient. If each pill contains 500mg tablets, how many would you need for a day’s treatment? b) an intramuscular medication is given at 5.00mg/Kg of body weight. What is the does if the patient weights 180lb c) a physician has order 0.50mg of atropine, intramuscularly. If atropine is available as 0.1mg/mL of solution, how many Ml would you need to give?
The physician of patient AJ (50 kg, M) admitted in your hospital ordered that the patient receives 0.25 mL of drug A per kg of body weight. This must be mixed with 250 mL of D5W. The IV admixture must be administered over a six-hour period only using a drip set capable of delivering 15 drops per mL. Your pharmacy has stocks of 2.0% w/v of drug A solution (density of drug A: 1.2 g/mL). Answer all questions below. 1. How many mL of drug A must the patient receive to obtain the needed dose? 12.5 mL B. 25.0 mL C. 50.0 mL D. 75 mL 2. From the pharmacy’s stocks of drug A solution, how many mL must be added to 250 mL D5W to prepare the IV admixture? 250 mL B. 500 mL C. 750 mL D. 1000 mL 3. What is the total volume of the admixture that will be administered to the patient? 262.50 mL B. 500 mL C. 750 mL D. 1000 mL 4. Given the capability of the hospital’s IV set, how many drops of the admixture should be administered to the patient? 3,936.5 drops B. 7,500 drops C. 11,250 drops D.…
Express these non-exponentially, and choose the unit and prefix that works best: 1.9 x 10^-4 l 4 x 10^-3 s 6.5 x 10^-8 g a. 1.9 ml; 4 ms; 65 ng b. 0.19 ml; 4 ms; 65 mg c. 0.19 ml; 40 ms; 65 g d. 0.19 ml; 4 ms; 65 ng e. 0.19 ml; 4 ms; 0.65 g
5. Compute the following (Show your complete computation. Box your final answer): A dose of digoxin for rapid digitalization is a total of 1 mg, divided into two or more portions at intervals of 6 to 8 hours. How many milliliters of digoxin elixir containing 50 mcg/mL would provide the 1 mg dose?
2.The mass of 15.0 mL of a particular liquid was measured to be T1=7.47g,T2=7.45g and T3=7.53g.Find the following: e)the percent error of its density if the true value is 7.5g/mL
A pipet is a type of glassware that is used to deliver a specified volume of liquid. A 5 mL pipet has major scale divisions marked for every milliliter and minor scale divisions marked for every 0.1 mL. i. What is the uncertainty (in mL) made using this pipet? ii. Would it be proper to report that the pipet was used to deliver 3.2 mL of liquid? Explain why or why not?
If l = 3, how many values of ml are possible? -- 1 3 5 7 9
A 75.42 % mass solution of naquadah (FM naquadah = 160.28 g/mol) in water has a density of 1.175 g/mL. Find the molarity of naquadah in this solution. How many mL of 7.791 M naquadah should be diluted to a volume of 300.00 mL to give a solution with a concentration of 3.03 M? A naquadah solution has a molarity of 0.43118023 M with a relative uncertainty of 0.12760507%. What is the concentration and its absolute uncertainty rounded to an appropriate number of digits? a. 0.43 +/- 0.06 M b. 0.431 +/- 0.001 M c. 0.4312 +/- 0.0006 M d. 0.43118 +/- 0.00006 M e. 0.431180 +/- 0.000013 M
Please answer 1-2 subunits.10. If the density of an object is 2.87 x 10-4 lbs/cubic Liter, what is its density in g/ml?7. A box measures 3.12 ft in length, 0.0455yd in width and 7.87inches in height. What is it volume in cubic centimeter?
Help me find the % deviation : #1: 7.77 #2 : 7.78 #3: 7.74 i know the average is 7.76 Then what do I do ?and I don't know if I use significant figures for this or not.