why is the cp of solids lower than that of liquids

Q: which of the following is a characteristic of a buffer? a. The pH will go down significantly when…

A: Buffers are solution which resist the change in pH upon addition of acidic or basic compoents.

Q: What is the overall effect of pH when we breath into water? Why do we observe this effect?

A: The pH of water is 7. When we breath, then the carbon dioxide is released.

Q: What happens when a pressure greater than the atmospheric pressure is applied to pure water or a…

A:

Q: Based on the ternary phase diagram, a binary mixture of furfural and water will always split into…

A: * Ternary diagram is triangular coordinate system with axes at edges these are used to plot three…

Q: Below is a Beer's Law Plot for the concentration of a specific colored compound x. A solution of…

A: Beer Lambert's plot It's a graph showing a compound's absorbance vs. concentration. It is a straight…

Q: What would happen to the pH of your soap if you washed the precipitated soap in twice as much volume…

A: pH is the expression of negative logarithm of hydrogen ion concentration in a solute or solvent. pH…

Q: Which one of the following laws for dissolved gases in water is NOT true? O a Warm water can hold…

A: Water is the universal solvent. It is made up of two hydrogen and one oxygen molecule.

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: Compared to the density of liquid water, the density of an ice cube is (1) always less (2) always…

A: Density is defined as mass per unit volume. The average density of a substance is calculated by…

Q: Why liquid is more difficult to move than air?

A: Ans: Liquid: It is defined as an incompressible fluid that takes shape of its container. Air: The…

Q: The most important peculiarity of water when compared to other solvents is that water has إختر أحد…

A: Water is a polar molecule  and it is called the universal solvent

Q: What is the pH of a solution that has an H¯ concentration of 1.75 x 10° mol/L

A: pH is the measure of the acidity or basicity of a medium.  It is measured as the negative logarithm…

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: A typical sport drink for electrolyte replacement contains 20 meq/L of Na+ and 10 meq/L of K+ ions.…

A: Normality is defined by a number of equivalents of solute per litre of solution. Molarity is…

Q: An aqueous solution contains 0.34 M potassium cyanide. One liter of this solution could be converted…

A: pH is the potential of hydrogen. It is measured by a pH meter. A pH scale ranges from 0 to 14. pH…

Q: föllowing would dispersion forces be the most important factor in determining physical properties in…

A: The London dispersion forces are defined as the weakest existing intermolecular forces. It is a…

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: 7. 30 grams of acetic acid (60 MM) is added to 120 g sodium acetate (82 MM). The total volume of the…

A:

Q: Which of the following is the weakest acid? Select one: O a. pka=4.02 O b. pka=4.76 O c. pka=3.55 O…

A: The stronger the acid and the weaker the base will be, the bigger the value of Ka. The base will be…

Q: If an argon atom is neutral, it contains 18 protons and it also contains 18 electrons. O True False

A: An atom has an equal number of electrons and protons, Thus, it has an equal number of negative…

Q: You made a buffer solution by combining 250.0 mL of a 0.20 M sodium acetate solution with 50.0 mL of…

A: Given Values: Volume and concentration of the sodium acetate = 250 m and 0.20 M Volume and…

Q: Which of the following ionizes completely in solution and is considered to be a strong acid? Select…

A: Acid  Acid are those compounds which give hydrogen ion when dissolved in water.

Q: 1. One liter of an aqueous solution contains 0.10 M Lys at pH=10.8, and 0.1 M HCl is subsequently…

A:

Q: A solution at pH 7 is considered neutral because (a) its hydrogen ion concentration is 0 mol/L (b)…

A: Answer : D its hydrogen ion concentration is equal to its hydroxide ion concentration.

Q: 450 grams of gasoline is spilled into a puddle of water. If the density of gasoline is 0.665 g/mL,…

A: The measure of the quantity of matter contained in a substance is defined as its mass. The SI unit…

Q: Normal blood pH should fall between: O 7.35 and 7.45. O 7.15 and 7.25. 6.95 and 7.15. O 7.65 and…

A: pH It is the negative log of the hydrogen ion concentration pH= -log[H+]  pH is a unit of measure…

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: As pH increases, there is increasingly more H+ than OH-

A: The pH of a solution is the log of hydrogen ion concentration with a negative sign. pH = -log (H+)…

Q: 46

A: Ions are the species that are marked with some kind of charge. The charge can be either a positive…

Q: Which mixture acts as buffer solutions? O 50 ml 0.1M H2CO3 and 100 ml 0.1M NAOH 100 ml 0.1M H2CO3…

A: A buffer solution is composed of a weak acid and its conjugate base. The buffer solution resists the…

Q: A solution is made by mixing 56.9 g of water and 23.8 g NaCl. What is the concentration of NaCl in…

A: Given Values: Weight of the water = 56.9 grams Weight of NaCl = 23.8 grams

Q: r to chemical equation shown here to explain why carbon dioxide dissolved in water acts as a buffer.…

A: Carbon dioxide is important for respiration in a very shape. internal respiration|metastasis} could…

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: What is the concentration in % (w/v) of a solution prepared from 50.0 g NaCl and 2.5 L of water? A.…

A: Percentage: The calculation of percentage is one of the simplest and most useful of mathematical…

Q: What is the concentration in % (w/w), of a solution prepared by mixing 50.0 g NaCl and 150.0 g…

A: The weight by weight percentage of 50.0 g of NaCl in 150.0 g of water = (weight of NaCl/ weight of…

Q: Tris NaCl buffer is known as?

A: Tris (with HCl) has a slightly alkaline buffering capacity in the 7–9.2 range. The conjugate acid of…

Q: another common term for ion is (starts with "e")

A: Ions are atoms with added electrons or reduced electrons. When the atom lost an electron, it will…

Q: Rank as to pOH acidity Samples pH [H1 [OH] Rank as to basicity VINEGAR 2.5 ΑΜΜΟΝΙΑ LEMON JUICE 1.5…

A: pH of a solution = -log [H+]. pH is the measure of acidity of a solution. A solution is acidic if…

Q: Pure water has a pH of 7, the point at which the concentrations of hydrogen ions and hydroxide ions…

A: pH is defined as the negative log of the hydrogen ion concentration. It ranges from zero to seven.…

Q: :OH KMNO4

A: Potassium permanganate (KMnO4) is a very strong oxidant which is able to react with many functional…

Q: If a sukfuric acid solution is titrated with the above sodium hydroxide soultion, it reqires 45.20…

A: Acid-base titration: This is a standard procedure to measure the concentration of unknown acid/base…

Q: As the pH increases the [H+] _______, and as the pH decreases the [H+] ______.

A: The fate of [H+] ions when the pH of a solution increases or decreases needs to be determined.

Q: In 5H2O how many hydrogen (H) atoms are present

A: Hydrogen atom is chemical atom which has atomic mass and number as 1. It has a single proton In it's…

Q: What is the partial pressure of 02 (in atm) when the percent saturation of Mb is 99%? a. 0.055 b.…

A: The atmospheric pressure at sea level is 1013.25 mbar. However the question has mentioned  99% Means…

Q: Substances those are partially dissolved in water are commonly known as

A: Molecules that are dissolved in water completely are called polar substances. Polar molecules get…