Ionic interactions are weaker in water than they are in an anhydrous medium. Describe how water reduces the strength of these interactions.

Q: When 50 grams of KCI is dissolved in 100 grams of water at 50 °C, the solution can be correctly…

A: Introduction: The solid substance that can be dissolved into a liquid is referred to as solute. On…

Q: Is sodium propanoate (the sodium salt of propanoic acid) as effective a soap as sodium stearate (the…

A: Soap is the cleansing or emulsifying agent, which helps to remove dirt.

Q: A buffer can protect against changes in pH when hydrogen ion or hydroxide ion is added to a reaction…

A: Buffer solution is two types, Acidic buffer - this is composed of a weak acid and it's conjugate…

Q: Write a net ionic equation that shows how this buffer neutralizes added acid (HCl).

A: Introduction Buffer is the solution with the ability to resist the addition of strong acid or base…

Q: What is the approximate concentration of the solution in mol\kg, if 1 mol of solute particles raises…

A: Boiling point elevation describes the phenomenon that the boiling point of a liquid will be higher…

Q: The pH of human blood is buffered at 7.35 to 7.45. If the [OH-] of the blood sample is 6.3x10-6,…

A: Appropriate pH levels in and around living organisms and cells are essential for life on Earth. A pH…

Q: Rank the following aqueous solutions in order of increasing vapor pressure. work for this question.…

A: Several physical properties such as boiling point and melting point change depending on the number…

Q: Using chemical equations, explain how bicarbonate ion and carbonic acid function as a buffer pair.

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Q: Why are buffers important in living systems? please explain

A: A buffer is a solution that can withstand pH changes when acidic or basic substances are added to…

Q: What is the relationship betweenpKa and the useful range of a buffer?

A: The strength of an acid in a solution can be expressed in terms of the acid dissociation constant…

Q: If water were not polar, would it dissolve sodium chloride

A: Water is a polar particle that can break up numerous salts into their ionic structures. It is…

Q: The weak acid HA is 2% ionized (dissociated) in a 0.20 M solution. (a) What is Ka for this acid? (b)…

A: The dissociation of a weak acid in water occurs as follows: HA ⇄ H⁺ + A⁻ Ka = [H⁺] [A⁻] / [HA]

Q: Calculate the pH of a buffer that contains 0.15 M MOPS anionic form and 0.25M MOPS zwitterion.  The…

A: The zwitterion is the form of amino acid which has net charge of zero. The Henderson-Hasselbalch…

Q: How many millilitres of Morphine Sulfate 15 mg / mL should the patient get if he needs to take 60 mg…

A: According to the formula,  Required Dose = D/H ×V where, D= desired dose; H=amount on hand; V=…

Q: Which statement best explains why alcohols have a higher boiling point than Alcohols have weaker…

A: Alcohols are polar molecules and alkanes are non-polar molecules. Alcohols and alkanes both are…

Q: why is the cp of solids lower than that of liquids

A: Cp is the specific heat. Specific heat of a solid or liquid is the amount of heat that raises the…

Q: Kaochlor, a 10% (m/v) KCl solution, is an oral electrolyte supplement administered for potassium…

A: Kaochlor is potassium chloride oral prescription which is used to treat and prevent low potassium…

Q: Why would a crystal of NaCl dissolve in water?

A: Sodium Chloride (NaCl) also known as salt which is an essential compound our body uses to absorb and…

Q: You will be given a stock solution of the dye EVANS BLUE dissolved in distilled water whose…

A: Scientists use molarity to describe the concentrations and it tells us how much solute is dissolved…

Q: To form S²⁻ ions from gaseous sulfur atoms requires 214 kJ/mol, but these ions exist in solids such…

A: The lattice energy is the amount of energy required in the formation of crystalline lattice of…

Q: The strength of ionic interactions is weaker in water than inan anhydrous medium. Explain how water…

A: Ionic bonds are formed when two opposite charges come in close proximity to each other. Ionic bonds…

Q: Two solutions with equal osmotic pressures are

A: Osmosis is the process of diffusion of solvent from the region of higher concentration of solute  to…

Q: Given the following data plot of the volume of NaOH vs pH a.  what does the values in 1 and 2…

A: Introduction A plot showing the pH of the solution vs the quantity of base added is known as a…

Q: If a liquid contains 3 mg of drug in 40 mL, what is the milligram percent of this solution? Round to…

A: Drug calculation is an essential component of drug administration. As Nurses we need to understand…

Q: Estimate the pH of a solution prepared by dissolving 1.0 × 10-10 mole of a strong acid in a liter of…

A: Analyze: We are asked to determine the pH of a solution prepared with a strong electrolytes that…

Q: Write the Henderson-Hasselbalch equation for a propanoic acid solution (CH,CH,CO,H, pK, = 4.874).…

A:

Q: Water forms stronger hydrogen bonds than ammonia. Suggest a reason for this.

A: Hydrogen-bonding is considered as the weakest bond, which is present between the two electronegative…

Q: The pH value is calculated mathematically as the Log of the .hydrogen ion (H+) concentration False…

A: The pH of a solution is used as an indicator of the hydrogen ion concentration of the solution. A…

Q: Why does a lower salinity of water increase the solubility of gas?

A: Factors which influence the  solubility of a gas in water are as follows:  Temperature decreases…

Q: Stearic acid is insoluble in water, and sodium stearate (a soap) is soluble. What causes the…

A: Lipids are macrobiomolecule that are made of hydrocarbons and is insoluble in non-polar solvents.

Q: Another characteristic of modern buffers such as HEPES is that their pH changes little with changes…

A: Base and acid both interact with each other and form salt and water. They both are used in everyday…

Q: A 0.10 M solution of the deadly poison hydrogen cyanide, HCN, has a pH of 5.2. Calculate the [H3O+]…

A: The hydronium ion concentration can be found from the pH  by the formula [H3O+] = 10-pH  or  [H3O+]…

Q: Determine the pH of a solution composed of 1 M acetic acidand 1 M sodium acetate.

A: pH is a scale that is used to specify the acidity or basicity of an aqueous solution. Acidic…

Q: How many more H+ ions does soda pop have compared to pure water?

A: The pH is defined as hydrogen potential. The pH scale is used to measure the solution whether it is…

Q: Beer’s law is strictly obeyed only in dilute solutions. Why?

A: It is frequently expected that Beer's Law is consistently a direct plot portraying the connection…

Q: Does 30% NaCl (MW=58.44g/mol,ionic) have the same, increased, or decreased osmotic pressure as 30%…

A:

Q: Calculate the mass of a liquid with a density of 3.2 g/mL and a volume of 25 mL

A: The amount of matter present in a substance is defined as its mass. It is independent of its…

Q: The H⁺ concentration in an aqueous solution at 25 °C is 4.3 × 10⁻⁶. What is [OH⁻]?

A: Hydrogen ion concentration [H+] of a solution is expressed in terms of pH. pH is the negative log of…

Q: A saline solution contains 1.00 g of NaCl (molar mass = 58.55 g/mol) in 75.8 mL of solution.…

A: Given Values: Weight of the NaCl used to prepare saline solution = 1 gram The total volume in which…

Q: Calculate the molarity of dilute Ca(OH)2 solution if the titration of 30.00 mL of 0.05231 M HCl…

A: Given : 30.00 mL of 0.05231 M HCl For this , n 2=1 as 1 hydrogen ion is present V2= 30 ml M2 =…

Q: An aqueous solution is 22.0% by mass ethanol, CH3CH2OH, and has a density of 0.966 g/mL. The…

A: Introduction: Molality is the ratio of the number of moles of solute per kilogram of solvent. Its SI…

Q: Explain the difference in the melting points of the linoleic acid and linolenic acid:

A: The fatty acids are the compounds that are also present in the cell membranes and allow for the…

Q: What information do we get if we calculate the ratio of the Absorbance value at 260 nm to the…

A: A spectrophotometer is a device that is used to calculate the absorbance of light passing through a…

Q: Describe the way an ionic solid dissolves in water

A: Ionic compounds are ones that are made up of oppositely charged atoms, known as ions, that are…

Q: Buffers also exist in biological systems. Discuss the composition and function of one example of a…

A: Buffer solutions often are weak acid/strong acid and conjugate base. buffers resist the…