Lab 4 PHY105M (1)

Match the definition in column A with the correct terms in Column B.

Recently a team from Clarkson University discovered a porous solid called NU-1000, constructed from Zr, C, O, and H, excels at removing poly- and perfluoroalkyl species (aka PFAS) from water. The density of this material is 0.486 g/cm³ and its surface area is 2255 m²/g. If 50.0 g of this material is placed in water, calculate the total area (in cm²) of this sample. DONT GIVE ANY TYPE OF IMAGE IN ANSWER OTHERWISE I WILL GIVE INCORRECT ANSWER DON'T GIVE HANDWRITTEN SOLUTION

Which of the following methods is used to determine "dissolved metals" in a water sample? O Digest the water sample and measure the metals in the digest Filter the water sample and measure the metals in the filtrate Filter the water sample and measure the metals in the particles in the filter Digest the water sample, filter the digest, then measure the metals in the filtrate

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Which materials are best suited for discharging excess static charge on your clothing during winter, Conductors or insulators?

Porosity is a measure of the void or empty spaces in a material and is a fraction of the volume of voids over the total volume. The density of the solid material used to create 7 pieces of 0.97 cm diameter and 1.14 cm height cylindrical beads is determined to be 1.63 g/mL. These beads were then placed in a flask and was filled to the 40 mL mark with a salt solution. The total weight measured of the beads and the salt solution was 46.86 g. Upon further inspection, it was found that manufacturing defects caused the measured porosity of the beads to be at 32%. Assuming that the solution was able to fully fill the empty spaces inside the beads, calculate the density of the salt solution.     Show your solutions in the next item   Round your answer to 2 decimal places.

The masses of benzene and an unknown liquid droplets falling off from the same stalagmometer at 20 ° C were measured as 0.052 g and 0.042 g, respectively. Since the surface tension of benzene at the test temperature is 28.9 dyn / cm, find the surface tension of the other liquid at the same temperature.

2. If an object has a low specific heat, would it be more like a conductor or an insulator? Explain.

Questions 4-10, Thanks.

Sublimation is preferred over recrystallization when you work with an amount of solid material to be purified that weighs: A) at least 1 kg B) about 100 mg C) about 1 mol D) about 1000 ml A OD

2. The goal behind suction filtration is to remove soluble impurities that are on the surface of the crystals. Therefore, why can't you simply use suction filtration instead of recrystallization to purify an impure solid?

Weigh out accurately 9.99 g of copper(II) sulfate pentahydrate (CuSO4·5H2O) by taring using a clean and dry empty 250-ml beaker. 2. Add tap water to the beaker to reach the 50-mL mark on the side of the beaker. 3. Dissolve all the crystals of CuSO4·5H2O in the water using a clean glass rod for stirring. 4. Then using a glass funnel transfer all the blue solution to a 100-mL volumetric flask. Rinse the beaker with about 10 mL of water and transfer the solution to the volumetric flask. Repeat the rinsing of the beaker with another 10 mL of water and transfer the solution to the volumetric flask. This is called quantitative transfer of the solution. 5. Then add enough water to reach the calibration mark of the volumetric flask. (You will need to use a dropper to add the last few drops of water to ensure the meniscus is on the calibration mark). Close the volumetric flask with a stopper and mix the solution well (so that it is homogeneous). 6. You have now prepared a standard solution (or…

The time for water to flow through an Ostwald pipet at 20°C was 298.8 seconds. The density of water at 20°C is 0.9982 and the density of a sample of olive oil is 0.910 g/cm3. The viscosity of water at 20°C is 1.002 cp and the viscosity of the olive oil is 84 cp. How long will it take for the olive oil to flow through the same pipet at 20°C?

What is formed when gas is enclosed in a chamber then liquified under very high pressure? * What latent heat value signifies the lost of heat during a phase change? What is the unique temperature and pressure at which the three phases of a substance are in equilibrium with each other? * Which liquid crystal is of pharmaceutical significance? *

3. Is solid > liquid → gas an endothermic or exothermic process? Describe how this energy change affects the energy of the molecules and their intermolecular forces.

Which method would you use to determine water content in packaging material, pharmaceuticals and cosmetics?  Mention few advantages of this method.

Porosity is a measure of the void or empty spaces in a material and is a fraction of the volume of voids over the total volume. The density of the solid material used to create 13 pieces of 0.6 cm diameter and 0.67 cm height cylindrical beads is determined to be 1.53 g/mL. These beads were then placed in a flask and was filled to the 42 mL mark with a salt solution. The total weight measured of the beads and the salt solution was 51.68 g. Upon further inspection, it was found that manufacturing defects caused the measured porosity of the beads to be at 21%. Assuming that the solution was able to fully fill the empty spaces inside the beads, calculate the density of the salt solution. Show your solutions in the next item Round your answer to 2 decimal places. Add your answer

Analyze the given problem and show your complete and detailed solution. Use 2 decimal places. The radius of the oxygen anion (O“) at 140 pm (larger than the neutral atom, 66 pm). On the other hand, the magnesium atom loses 95 ppm from its 160 ppm radius when it loses two valence electrons, forming the magnesium ion. If the attractive force of the magnesium and oxygen ions is 21.93nanoNewtons. What is their repulsive force in nanoNewtons?

Find the magnitude and direction of the resultant force for the system of forces shown in the figure. Where F1 =20 N, F2 =5N, F3 =30 N, F4 =10N, F5 = 60N & F6 =70N. The angles 02 =15º, 03 =20° , 04 = 20°, 06 = 30 ° (ENTER ONLY THE VALUES IN THE BOXES BY REFERRING THE UNIT GIVEN IN BRACKET. ALSO UPLOAD YOUR HANDWRITTEN ANSWERS IN THE LINK PROVIDED) F2 F3 F4 F1 AF6 F5 (1) The horizontal component 2H of the given system (unit is in N) = (2) The horizontal component ZV of the given system (unit is in N) = (3) The resultant of the given force system is (unit in N) = (4) The direction of Resultant is =

2. Explain how suction filtration is carried out in the laboratory. Give the important points that must be observed in doing the process.

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Balance each of the following equations. Na(s)+Cl2(g)→NaCl(s) Mn(s)+O2(g)→Mn2O3(s) ZnO(s)⟶ΔZn(l)+O2(g) Express your answer as a chemical equation. Identify all of the phases in your answer

rosity is a measure of the void or empty spaces in a material and is a fraction of the volume of voids over the total volume. The density of the solid material used to create 7 pieces of 0.97 cm diameter and 1.14 cm height cylindrical beads is determined to be 1.63 g/mL. These beads were then placed in a flask and was filled to the 40 mL mark with a salt solution. The total weight measured of the beads and the salt solution was 46.86 g. Upon further inspection, it was found that manufacturing defects caused the measured porosity of the beads to be at 32%. Assuming that the solution was able to fully fill the empty spaces inside the beads, calculate the density of the salt solution.     Show your solutions in the next item   Round your answer to 2 decimal places.   Question           Porosity is a measure of the void or empty spaces in a material and is a fraction of the volume of voids over the total volume. The density of the solid material used to create 7 pieces of 0.97 cm diameter…

ay... Q Search Layout Open in Desktop App Search D Fody) v 16 B IU ev Av ニ三 ... 2. A shiny solid conducts electricity as a solid but does not dissolve at all in water. It is bendable. What is it? (Metallic, ionic, molecular solid, or network solid)