c) You decide to preserve some fish using sodium chloride. Explain how the sodium chloride works as a preservative. [2] a) Complete the table on information about the three states of matter. Property Solid Liquid Gas Volume definite randomly arranged Arrangement of particles with small spaces between Energy of particles have large amounts of kinetic energy

c) You decide to preserve some fish using sodium chloride. Explain how the sodium chloride works as a preservative. [2] a) Complete the table on information about the three states of matter. Property Solid Liquid Gas Volume definite randomly arranged Arrangement of particles with small spaces between Energy of particles have large amounts of kinetic energy

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter4: Energy And Chemical Reactions

Section: Chapter Questions

Problem 120QRT

See similar textbooks

Similar questions

Magnesium sulfate (MgSO4) has a solubility of 38.9 g/ 100 g H2O at 30C. A solution is prepared by adding 9.50 g of MgSO4 to 25.0 g of water at 40C. A homogeneous mixture is obtained. Is the solution saturated, unsaturated, or supersaturated? One gram of magnesium sulfate is added to the solution cooled to 30C. Would you expect some of the MgSO4 to precipitate? If so, how much? If not, how much more MgSO4 can be added before precipitation takes place?
Define the joule in terms of SI base units.
ou place hot metal into a beaker of cold water. ol type='a'> Eventually what is true about the temperature of the metal compared to that of the water? Explain why this is true. i>Label this process as endothermic or exothermic if we consider the system to be the metal. Explain. the water. Explain.
Two positively charged spheres, each with a charge of 2.0 *10-5 C, a mass of 1.0 kg, and separated by a distance of1.0 cm, are held in place on a frictionless track. (a) Whatis the electrostatic potential energy of this system? (b) Ifthe spheres are released, will they move toward or awayfrom each other? (c) What speed will each sphere attainas the distance between the spheres approaches infinity?[Section 5.1]
1. What is the purpose of stirring the contents of thecalorimeter before the final temperature is taken?
(A) if both sentences are true, (B) if both sentences are false, (C) if the first sentence is true but the second is false, and (D) if the first sentence is false but the second is true. 1. Water appears in nature in all three common states of matter. Water is a tasteless, odorless liquid at standard temperature and pressure. 2. The addition of salt in the distilling mixture made the water impure and saline. The addition of 5 drops of the silver nitrate solution into the distillate determines whether the distillate is impure or pure water. 3. The ideal electrical conductivity of totally pure water is 0.055 microSiemens, whereas typical deionized water has an electrical conductivity of 0.1 microSiemens. The freezing point of water at 1 atm is 100degC. 4. From the air, oxygen can slowly diffuse across the water’s surface from the surrounding atmosphere, or be mixed in quickly through aeration, whether natural or man-made. The aeration of water can be caused by wind (creating waves),…
A coffee cup calorimeter was used to measure the heat of solution, the change in enthalpy that occurs when a solid dissolves in water. A 10.0 g sample of an ionic compound with a molar mass of 145.0 g/mol145.0 g/mol was added to a sample of deionized water to produce 60.0 grams of solution. After stirring and dissolving the solid, the temperature was found to change from 25.00 ∘C25.00 ∘C to 23.87 ∘C23.87 ∘C . Calculate the enthalpy of solution, Δ?solnΔHsoln , per mole of salt dissolved. Assume the specific heat of the solution is 4.13 J/(g⋅∘C4.13 J/(g⋅∘C ) and the heat capacity of the calorimeter is 3.30 J/ ∘C3.30 J/ ∘C . Calculate the heat change experienced by the calorimeter contents, ?contentsqcontents . ?contents=qcontents= JJ Calculate the heat change experienced by the calorimeter, ?calqcal . ?cal=qcal= JJ Calculate the heat change produced by the solution process, ?solnqsoln . ?soln=qsoln= JJ Calculate Δ?solnΔHsoln ,…
2b) What is the primary consideration?
what is the differencess between oil heat stability of cold water fish and warm water fish?
A town requiring 20 m3/s drinking water has two sources, a local well with 60 g/m3 nitrate and a distant reservoir 10 g/m3? What flow rates of well and reservoir water to meet 45 ppm drinking water standards and minimize the use of more expensive reservoir water?
In a reaction, 0.700g of Ca is added to 75.0mL of 1.0M HCl. Once the reaction is completed as evidenced by the temperature change, the temperature of the solution of HCl had risen from 23.2OC to 88.2OC. Ca(s) + 2HCl(aq) Ca+2(aq) + H2(g) a. How many moles of Ca was present? b. What is the change in T of the mixture? c. What was the amount of heat gained by the solution of HCl? d. What was the amount of heat lost by the reaction? e. What was the heat of reaction per mole of Ca in units of J/mol?
You have been tasked with determining the wastewater solids generated by a community. To determine solids, you collect two effluent samples of 100 mL each. The first sample was placed, unfiltered, in a crucible and dried at 105 ̊C overnight. The weight of the dried sample and crucible was 5.6112 g, while the weight of the crucible was 5.6000 g. The second sample was filtered. The filter and drying dish were dried overnight at 105 ̊C after which they weighed 2.1085 g. The filter and drying dish were then placed in a muffle furnace at 550 ̊C for 30 mins, after which they weighed 2.103 g. The drying dish weighs 1.6000 g and the filter weighs 0.5 g. a) Determine the concentration of TS, TSS, VSS, FSS and TDS in mg/L: b) Does TSS concentration meet the federal effluent regulations? If not, what removal techniques would you recommend and what minimum percent must be removed prior to discharge?