A buffer contains 0.14 mol of propionic acid ( C2 H5COOH) and 0.15 mol of sodium propionate ( C2 H5COONA) in 1.20 L. You may want to reference (Page) Section 17.2 while completing this problem.

Q: Sample #1 has a lower vapor pressure than does Sample #2. The molecules are about the same size.…

A: Stronger the intermolecular forces (IMFs) lower will be the vapour pressure. Strongly Polar…

Q: 23. A researcher wanted to use myoglobin as a substitute for hemoglobin to carry oxygen in a human…

A: We from the overall observation of the graph we can say the myoglobin curve is hyperbolic and the…

Q: 33. The compound above would NOT be soluble in a. water b. hexane C. nonpolar solvents d. more than…

A: This is a part of solution chemistry which is explained below.

Q: Please help

A: Given information: 45 g of NaCl in 100 g of water at 60oC The solubility graph shows the curve…

Q: Stationary phase is: Select one: O a. Solid phase O b. Organic solvent Oc.Liquid phase

A: We have to tell about stationary phase

Q: What solvent would you use to differentiate compound A from compound B? Compound A Compound B…

A: The functional group in which the carbon atom of the carbonyl group is attached or bonded to minimum…

Q: 4. Which pair of solvents is NOT miscible? a. hexane and water b. water and methanol c. methanol and…

A: Polar molecules tend to dissolve in polar substance.  Non-polar molecules tend to dissolve in…

Q: a.Recognize the difference between crystalline and non-crystalline confectionery. b. What exactly…

A: Confectionary produces crystalline  bakery items  and Non crystalline produces items having non…

Q: acting in modulating solubility. lipophilicity, and cel permeation (e.g. antibiotic or…

A: To find: the correct choice for the blank given.

Q: 10. Chemical substance commonly used as a flavor enhancer: A. Monosodium glutamate (MSG) C.…

A: Given evolume of food through the presence of carbon dioxide

Q: 44. Which of the following refers to finite resources that will eventually get depleted? A. Natural…

A: 44- D. Nonrenewable resources  45.  C. detergent  46. A. I and II alcohol and detergent  47. C. Wash…

Q: An antimicrobial agent preservative that inhibits the growth of molds, yeast and bacteria in food.…

A: Food preservatives are the substances which are added to food items in order to preserve them for a…

Q: What does the term "decant" mean in this lab (i.e. decanting a dry organic solution into a tared…

A: In chemistry lab solutions are transformed from one container to another container.

Q: Organic solids are best purified by a. recrystallization b. vacuum distillation c. fractional…

A: Purification of organic compounds can be done by various methods namely distillation method,…

Q: 4. Compare boiling points and solubilities in water for each pair c Ammonia, NH, and methane, CH, b.…

A: Physical properties of a compound depends on its intermolecular forces. The compounds which have the…

Q: 5. Which tablet size and the liquid combination resulted in the fastest dissolution times? A.…

A: Solving only first question in accordance with the guidelines. We will answer this question using…

Q: 14. What speeds up biological decomposition when added to wastewater or sludge being treated? 1.…

A: Biological wastewater treatment is the important step in wastewater treatment procedure. It is a…

Q: What does the process of recrystallization accomplish? 1) Place toxic chemicals into pure materials…

A: Recrystallization is the process of purification of organic compounds. Hence, the process of…

Q: Increasing the number of carbons in a drug molecule (more than five carbon atoms) will: O a.…

A: Given information,     The number of carbon atoms in a drug molecule is increased

Q: Benzillic Acid Lab Q3. Cold water and ethanol was used to wash/rinse the collected solid during…

A: The rinse is to wash off impurities that adhere to the surface of the tetraphenylcyclopentadienone…

Q: A student observes a melting point for sulfanilamide of 77-81 °C. What can be concluded from this…

A: C option is correct-- The sample is likely contaminated.When the sample is impure, there is a change…

Q: Which of the following is a physical process of water purification which separates suspended solid…

A: Sedimentation is a physical water treatment process using gravity to remove suspended solids from…

Q: . 92.3 ml . 226 ml 4. Solution B was prepared from solution A as shown below. The concentration of…

A: 4) The formula of dilution is  C1V1 = C2V2 Where, C1 and C2 are initial and final concentrations of…

Q: What reaction is involved in the production of soap?* A. Endothermic reaction B. Exothermic…

A: Production of soap involves saponification reaction.

Q: 3. Animation 4.1 Refer to the table showing three substances (A B, and C) transported across the…

A: Diffusion through membranes is of two types: 1. Simple Diffusion: It works for smaller…

Q: 2. Consider a layer of oil floating on top of a layer of water. Where would you expect to find the…

A: a. Triglycerides would typically be found in the oil phase, as they are the main component of many…

Q: 9. Polar solvents tend to dissolve ionic and polar molecules while non-polar solvents tend to…

A: polar solutes dissolves in polar solvents and non polar solutes in non polar solvents thus we can…

Q: 2NO(g) +O2 (9)→2NO2 (9) given the following reactions and enthalpies of formation: A. N2 (9) +…

A: Since you have asked multiple question, we will solve first question for you. If you want any…

Q: What happens when you drop a chunk of diswashing paste on water? What will happen to both substance?

A: Dishwashing paste contains different type of surfactants. When this dishwashing paste added with…

Q: Which of these will NOT dissolve in water?    a.table salt b.sugar c.vinegar d.bacon fat

A: Given options are : a.table salt b.sugar c.vinegar d.bacon fat Which of these…

Q: 9. Desiccants are chemicals that: A. O Remove humidity B. O Add humidity C. O Add moisture D. O…

A: Desiccants are chemicals that ::

Q: A parent witnessed his child who just ingested an old silvery coin. This is an emergency because…

A: Silver is non-toxic and one of the precious metals with the symbol Ag and it is used to make…

Q: 6-Alternative sweeteners that yield energy are called: a. added sugar. b. alternative sweeteners.…

A: Alternative sweeteners provide energy in form of carbohydrates

Q: Suppose you have a mixture of water and your 2-chloro-2-methylbutane product in a separatory funnel.…

A: density of substance is defined as mass upon the volume

Q: These modify the interfacial properties of substances. A. Surfactants B. Aerosols C. Nanotechnology…

A: Answer is A) Surfactants

Q: What is the main purpose of recrystallisation? A. Chemists recrystallise solids when they want to…

A: Crystallization is the process by which a solid forms , where the atoms or molecules are highly…

Q: 4) Consider a liquid with a boiling point of 230°C, a freezing point of 24°C, and a vapor pressure…

A: 4) Boiling point : It is the temperature at which the vapour pressure of a liquid becomes equals to…

Q: why does polar liquid solvent cannot dissolve non-polar liquid  solute? Select one: a. like…

A: The polar compounds have polar bonds and non-polar compounds have non-polar bonds.

Q: . The conditions at which the rate of evaporation and condensation are equal is called? a.…

A:

Q: Q1/Why do we use oil instead of water to determine the melting point of chemicals? Q2/What is the…

A: Melting point is defined as the temperature at which the compound undergoes a phase change from…

Q: Name one hydrocolloid (from plant source )that can form gel on heating.

A: They are heterogeneous group with long chain of polymers. It is that type of property which form…

Q: Based on the table below, which sample has the lowest melting point? Fat or oil Palmitic A 24.6 B…

A: There are 4 samples are given having different% of fatty acid by weight.

Q: 73.  How does the potassium channel maintain selectivity for potassium versus sodium ions?  (MARK…

A: The statements which are true are, The partial negative charge of carbonyls in the pore is…