Concept explainers
(a)
Interpretation:
Estimate the solution of
Concept introduction:
The method which is used to calculate the answer without using the calculator is “Order of magnitude”.
(b)
Interpretation:
Estimate the solution of
Concept introduction:
The method which is used to calculate the answer without using the calculator is “Order of magnitude”.
(c)
Interpretation:
Estimate the solution of
Concept introduction:
The method which is used to calculate the answer without using the calculator is “Order of magnitude”.
(d)
Interpretation:
Estimate the solution of
Concept introduction:
The method which is used to calculate the answer without using the calculator is “Order of magnitude”.
Want to see the full answer?
Check out a sample textbook solutionChapter 2 Solutions
EBK ELEMENTARY PRINCIPLES OF CHEMICAL P
- (904.6 - 2.9)/3.52 x 10^4arrow_forwardIn the Analytical Chemistry laboratory, one of the B.Sc student Ms. Fatma wanted to analyze the presence of Iron(II) ion in the water samples collected from Sohar Industrial Area in the Sultanate of Oman and analyzed by Spectrophotometric method. (1) 250.00 mL of this water sample (Solution A) known to contain unknown amount of FeSO4. She has diluted Solution A by a dilution factor 10 to make 250.00 mL solution, which she labeled Solution B. Using Spectrophotometer, she has measured the absorbance value (0.642) for Solution B at 508 nm using 1.00 cm cell (cuvet). The molar absorptivity value for Fe2* ion at 508 nm is ɛ508 = 30.8 M-1cm1. (i) What volume of the solution A did she require to make the 250.00 mL of Solution В? (ii) in (i)? What instrument should she use to transfer the volume of the Solution A calculated (ii) Concentration of FeSO4 in Solution B. (iv) Concentration of FeSO4 in Solution A. Mass of FeSO4 in Solution A (Show your calculation) (v)arrow_forwardA tank contains 60 kg of salt and 2000 L of water. A solution of a concentration 0.015 kg of salt per liter enters a tank at the rate 5 L/min. The solution is mixed and drains from the tank at the same rate. (a) What is the concentration of our solution in the tank initially? concentration = (kg/L) (b) Find the amount of salt in the tank after 2.5 hours. amount = (kg) (c) Find the concentration of salt in the solution in the tank as time approaches infinity. concentration = (kg/L) с O 2 #3 3 54 $ 4 % 5 M 6 & 7 O * 8 ( 9arrow_forward
- Concentration of NaCI Solution. The aqueous solution of NaCl has a concentration (weight basis) of 26% NaCl with a density of 1.178 g / cm3 at 25 ° C. Calculate the following.(a) Mol fraction of NaCl and water = Answer(4 digits behind comma)(b) NaCl concentration as g mol / liter = Answer (c) NaCl concentration as kg / m3 = Answer (d) Concentration of NaCl as Ibm / ft3 = Answer (e) NaCI concentration as lbm / gal = Answerarrow_forwardA tank contains 80 kg of salt and 1000 L of water. A solution of a concentration 0.04 kg of salt per liter enters a tank at the rate 10 L/min. The solution is mixed and drains from the tank at the same rate. (a) What is the concentration of our solution in the tank initially? concentration = (kg/L) (b) Find the amount of salt in the tank after 1 hours. amount = (kg) (c) Find the concentration of salt in the solution in the tank as time approaches infinity. concentration = (kg/L) ✪✪ C O ✓ 9 W 3 e $ 4 % 5 Oll 6 29 & 7 O u * 8 9 ) 0arrow_forwardUse the meaning of the prefix "nano-" to select the value of "x" in this equation: 1 m = 1 x 10x nm . The value of " x " is (a) +9 (b) -6 (c) +6 (d) -9arrow_forward
- Express the answers to the following calculations inscientific notation:(a) 145.75 + (2.3 × 10−1)(b) 79,500 ÷ (2.5 × 102)(c) (7.0 × 10−3 ) − (8.0 × 10−4) (d) (1.0 × 104 ) × (9.9 × 106)arrow_forward(aq) (aq) ВаCl, (aq) + H,0 (1) 6.arrow_forwardMissing molar conductivity Given: Conductivity: 281 us x cm^-1 (microseconds/cm) Concentration of solution: 0.05555555556 M (mol/lit) Basically, molar conductivity = conductivity/concentration, but what I'm not sure of is the proper unit for the answer molar conductivity and if it will require the given conductivity to be converted to seconds and meter (or not? I'm not sure cause i've been seeing S⋅m2⋅mol−1 in the internet as the unit for molar conductivity)arrow_forward
- How many milliosmoles (mOsm) are there in 0.710 Osm? How many square centimeters (cm2) are there in a square kilometer (km2)? A plane travels at Mach 2.5, how long will it take to travel from California to Germany (9112 km)?arrow_forwardA 30 mL sample of vinegar is titrated with 39 mL of 0.5 N Sodium Hydroxide. What is the normality of the acetic acid (CH3COOH) in vinegar? Atomic Weights :Sodium - 22.99Oxygen - 15.999Hydrogen - 1.008 Enter numerical value only; round off to 4 decimal places if necessaryarrow_forwardIn preparing an infusion of the drug cetuximab, a pharmacist adds 15 mL of bacteriostatic water for injection to a vial containing 350 mg of the mAb. The resulting solution contains cetuximab, 24 mg/mL. Loading dose = 4 mg/kg (120 min infusion); maintenance dose = 1.8 mg/kg/wk (60 min infusion) (a) calculate the milliliters of solution required for the loading dose for a 200-lb patient. The pharmacist then transfers the calculated volume into an infusion bag containing 300 mL of sodium chloride injection. Calculate (b) the quantity of cetuximab administered in mg/min and (c) the drip rate, in drops/minute, using an administration set that delivers 15 drops/mL. O a. 21 mL; 3.62 mg/min; 30 drops/min O b.21 mL; 4.56 mg/min; 30 drops/min O. 15.16 mL; 3.03 mg/min; 23 drops/min O d. 15.16 mL; 3.03 mg/min; 39.39 drops/minarrow_forward
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY