Concept explainers
(a)
Interpretation:
To show: The given equation gives reasonable results for h=0, h=r and h=2r
Concept introduction:
The mathematical expression for the volume of benzene in the drum is given by:
Where,
(b)
Interpretation:
The mass of the benzene in the tank for the given case.
Concept introduction:
The expression for the volume of benzene in the drum is given as,
Where,
In addition, Density is defined as,
Where,
V = volume
(c)
Interpretation:
A relationship between the mass of benzene and the liquid height of benzene in the tank by plotting graph between mass of benzene and level of benzene.
Concept introduction:
On combining the density formula and expression for the volume of benzene in the drum we get:
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Chapter 2 Solutions
ELEMENTARY PRINCIPLES OF CHEM. PROCESS.
- K_H for gaseous radon dissolving water at 25 degrees Celcius (298.15 K) in units of mol/kg-bar. a. Show that the numerical value is almost exactly the same as when the units are in mol/L-atm and calculate H. b. Using that value, do you think showering with water that has significant dissolved radon concentration might be a problem?arrow_forwardGas Pressure Conversions • A given P(atm) takes different column heights (h) of different liquids (p) to balance in a barometer: P(H,0) = p(H,O) gn h(H,0) P(atm) = p(Hg) g, h(Hg) 1 h oc %3D %3D ... Find mm(H,0) that measures 1 atm = 760 mmHg: %3D h(H,O) = h(Hg) x e(Ha= 760 mm(Hg) x 13.5_g/mL = [O,2le0 mm(H,O) %D %3D p(H2O) 1.0 g/mL A barometer with liquid twice as dense as water shows 1 atm as: 0.38 m 1.52 m 5.15 m 20.6 m Convert 3.11 x 10-5 atm into mTorr 1 atm =100 Torr 3.11 x 10-5 atm xloO Torr 1 atm 1 mTorr 10-3 Torr 23.0mTorr (AKA: µ) 1 in(Hg) = 25.t mm(Hg) Pa = 29.92 inHg 80.6 KPa Convert 23.8 inHg into kPa %3D 1 atm = 760 mmHg = (01325 25.4 mm(Hg)x 1 in(Hg) %3D 101325 Pa 760 mmHg 1o Pa 23.8 inHg x x 1 kPa =arrow_forwardFive dialysis bags, constructed of a type of membrane that is permeable to water and impermeable to sucrose, were filled with various concentrations of sucrose and then placed in separate beakers containing an initial concentration of 0.6M sucrose solution. At 10-minute intervals, the bags were weighed, and the percent change in mass of each bag was graphed. Mass Change (%) 65432104NTY A B O Bag B. O Bag C. O Bag D. C DE 10 20 30 40 50 60 Time (minutes) Which line in the graph represents the bag with the highest initial concentration of sucrose?arrow_forward
- A variation of the indicator-dilution method (see preceding problem) is used to measure total blood volume. A known amount of a tracer is injected into the bloodstream and disperses uniformly throughout the circulatory system. A blood sample is then withdrawn, the tracer concentration in the sample is measured, and the measured concentration [which equals (tracer injected)/(total blood volume) if no tracer is lost through blood vessel walls] is used to determine the total blood volume.In one such experiment, 0.60 cm3 of a solution containing 5.00 mg/L of a dye is injected into an artery of a grown man. About 10 minutes later, after the tracer has had time to distribute itself uniformly throughout the bloodstream, a blood sample is withdrawn and placed in the sample chamber of a spectrophotometer. A beam of light passes through the chamber, and the spectrophotometer measures the intensity of the transmitted beam and displays the value of the solution absorbance (a quantity that…arrow_forwardHow to solve for initial mass of the water. With 70mL of water with a density of 1.00 g/cm^3 given information. While using the equation p=m/v. Thanks.arrow_forward"A cylindrical tank contains 2 liquids with differebt density. Assuming the container is full and is open to the atmosphere, determine the pressure (psia) on bottom of the tank given that the volume of the tank is 16.1 m3 and the height is twice the diameter. The specific gravity of the liquids is 0.73 and 1.37 havinga volumetricratio of 1:3, respectively. Show all necessary conversions and solutions."arrow_forward
- Drug: C20H22ClN (Flexeril also known as iCyclobenzaprine HCl Using unit analysis, clearly show the set-ups for your calculations. You wish to prepare 50.0 mL of 2.30 x 10–2 M solution of your drug. (hint-how many grams will you need of your drug?) Describe how to prepare this solution from the pure drug and deionized water. Analytical balances and volumetric flasks are available to you. (Assume that your drug dissolves in water, at least to the extent necessary for this problem.) Use complete sentences in your description of the solution preparation process. A patient is given 2.0mL of a 3.00% (m/v) solution of your drug, how many milligrams of the drug did they receive? What is the molarity of a 3.00% (m/v) solution of your drug?arrow_forwardThe Thomson Reservoir is the biggest of Melbourne's fresh-water storages. What is the increase in water pressure (in kPa), compared to what it was at the water surface, as a diver descends down to a depth of 47.0 m? density of water = 1000 kg/m³ Patm = 101.3 kPa Enter the numerical value of your answer to the correct number of significant figures.arrow_forwardYou were tasked to prepare 590 ml of 3.00 M HNO3. If you were provided a stock solution of 70.5% (w/w) HNO3 (MW = 63.0 g) with a specific gravity of 1.42, what volume of this solution (in ml) will you be using?arrow_forward
- Calculate densities in lbm/ft3 of the following substances:(a) a liquid with density of 995 kg/m3. Use (i) conversion factors from the table on the inside front cover and (ii) Equation 3.1-2.(b) a solid with a specific gravity of 5.7. What did you assume to come up with your answer?arrow_forwardA brine solution of salt flows at a constant rate of 9 L/min into a large tank that initially held 100 L of brine solution in which was dissolved 0.4 kg of salt. The solution inside the tank is kept well stirred and flows out of the tank at the same rate. If the concentration of salt in the brine entering the tank is 0.04 kg/L, determine the mass of salt in the tank after t min. When will the concentration of salt in the tank reach 0.01 kg/L? Determine the mass of salt in the tank after t min, mass = | kgarrow_forwardThe antoine constants I got were A= 4.27873, B= 1355.374, C= -37.853. The temp. range is from 288.3 - 362.3K.arrow_forward