Soft drinks usually have a pH of approximately 3.1. What is the [H3O+] concentration in a soft drink?

Q: When comparing pH, a solution with a pH of 5 contains 100 times the amount of H+ when compared to a…

A: pH of a solution is nothing but the negative log of hydrogen ion concentration in a solution . it…

Q: There are several different units that biochemists use to describe the concentration of a solution.…

A: BSA means bovine serum albumin. Given Values: Mol. wt of BSA = 80000 Dalton or 80 kD Weight of the…

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: Elemental analysis of a compound with molar mass 342.3 g/mol gives the following mass percent…

A: Given Percentage of C= 42.11 %  Percentage of H=6.48 %  Percentage of O=51.41% To Calculate:…

Q: It is possible to make a buffer that functions well near pH7 using citric acid, which contains only…

A: Citric Acid is a type of weak acid with a pH of 3 to 6 and is commonly used as a buffering agent,…

Q: Water 1H2O2 is more polar than hydrogen sulfide 1H2S2. Explain.

A: Polarity is the separation of electric charge leading to a molecule or its chemical groups having an…

Q: A solution with a pH of 6 has a ____ difference in H ion concentration than a solution with a pH of…

A: pH is chemical scale that specifies the acid or basic strength of a solution. Pure water has a pH of…

Q: The concentration of acetic acid (pKa = 4.75) in vinegar is about 1.0 M. What is the pH of vinegar?

A: The pH of a solution is defined as the negative logarithm of the H3O+ ion concentration in moles per…

Q: How much sodium formate (HCOONa, 68.0069 g/mol) do you need to add to 400. mL of 1.00 M formic acid…

A: Given: Volume of formic acid = 400. mL pH=3.500 Ka = 1.77 x 10¯4 To calculate: Mass of sodium…

Q: What is the correct abbreviation for this molecule? H,C NH

A: Nucleotide is the monomer unit of the nucleic acid. A nucleotide is formed when a sugar molecule, a…

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: Many molecules are polar, yet they do not form significanthydrogen bonds. What is so unusual about…

A: Chemical bonds tie together molecules and establish transient links, which are important for life,…

Q: Organic molecules that have more than one ionization state are called _____.

A: Explanation: Here the concept of ionisation state of the molecules come; so knowing what an…

Q: What is the pH of a 0.00550 M solution of HCl?

A: Strong acids completely disassociated into ions in solution but weak acids do not. The pH of the…

Q: Which of the following compounds would you expect to have the highest boiling pointand which the…

A: The boiling point of a substance is the temperature at which liquid turns into vapour. The boiling…

Q: Antacids are a common over-the-counter remedy for heartburn, a condition caused by an verabundance…

A: Antacids are a group of medicines that facilitate to neutralise the acid content of your abdomen.…

Q: Which do you think has a higher boiling point, pentane or neopentane (2,2-dimethylpropane)? Why?

A: The boiling point is the temperature at which the pressure of the liquid changes to the state of the…

Q: You have 200 ml of a stock solution of 50% glycerol, a liquid. How much would you need to make 1…

A: According to normality equation,

Q: The concentration of alcohol 1CH3CH2OH2 in blood, calledthe “blood alcohol concentration” or BAC, is…

A: Blood alcohol concentration or BAC is defined as the amount of alcohol in the bloodstream at a…

Q: The pH scale is valid only for water. Why is this so?

A: The scale which is used to measure the acidic nature or basic nature of all aqueous solutions is…

Q: Butanoic acid (C3H7COOH) is described as a weak acid. Define the term weak acid

A: Acids are chemical compounds that taste sour and turn the blue litmus red. They have a pH of less…

Q: which functional group remains charged at pH of 9. „NH2 H2N COOH

A: The pKa of the ionizable groups on an amino acid determines the net charge of the amino acid. Since…

Q: 2. Of the following amino acids, which contains an alcohol? a b HN. HN. HN. HN. HO, HO, HO, SH NH.…

A: Introduction: Amino acids are biomolecules comprise of two functional groups; an amino group (-NH2)…

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: Which of the following best describes the molecule below? CH OH H. CHOH H H. OH H OH CHOH H OH OH

A: Carbohydrate is one of the biomolecules among protein and lipid and disaccharide belong to…

Q: if a tomato juice has a pH of 3, how many more H+ ions are present in lemon juice with a pH of

A: pH = -log10[H+][H+] = 10-pH

Q: _____________ compounds exclude water.

A: Rule of thumb that states that "like dissolves like" which means that polar molecules are dissolved…

Q: Arrange the elements Na, Si, and S in the order of (a) decreasing atomic radius. (h) increasing…

A: Atomic radius: It is half the distance between nuclei of two atoms of the same element when the…

Q: For each of the following compounds, indicate the pH at which 50% of the compound will be in a form…

A: According to concept of acids and bases, an acid is defined as a substance that donates a proton (a…

Q: The pH of normal human blood is in the range of 7.35 to7.45. Compute the range of the concentration…

A: The pH of a solution is the measure of hydronium ion concentration or the proton concentration of…

Q: Make a 100 ml of a 1M stock solution of NaCl (you will need the molecular weight of NaCl).

A: molecular weight of Back is 58.4 Molarity (M) is the amount of a substance in a certain volume of…

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: What is the pH of a grapefruit that contains 0.007 M citric acid solution (CHgO7)? C6H307(aq) +…

A: Acids are substances that are capable of donating a proton to the aqueous solution. Weak acids…

Q: H3C- -CH3 CH3 H3C CH3 Но ČH3 -CH3 A B D H2N NH2 OH CH3 -CH3 -CH3 H3C- CH3 H3C- H3C CH3 H;C ČH3 F G H

A: A functional group is a substituent in a molecule which governs it's  characteristics of chemical…

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: The amino acid alanine has two isomers, α-alanine and β-alanine. When equal masses of these two…

A: Amino acids are the monomers of proteins having chiral carbon with all four different groups except…

Q: Emergency treatment of cardiac arrest victims sometimes involves injection of a calcium chloride…

A: %(w/v) measures mass of the solute dissolved per 100 mL of solution. Mass of the CaCl2 in solution…

Q: alanine that would exist at the pH indicated below.

A:

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: carbonic anhydride

A: Carbonic anhydride It is the acidic oxide of carbonic acid. It is colourless, odourless and…

Q: The following amine acids are given. SH CH3 *HạN-CH- ČH2 *H,N-CH- or Cysteine Alanine Draw…

A: Introduction Fatty acids These are long-chain hydrocarbons with carboxylic group end. Three fatty…

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: A solution with a low pH means what?

A: pH is the chemical parameter that influences the outcome of the chemical reaction. Different…

Q: pKa = 9.6 pKa = 2.3 H H :0: + 120° H-N - С-с | 180° 20. 105° The structural formula of the glycinium…

A: Bent's rule describes and explains the relationship between the orbital hybridization of central…

Q: Referring to PHC elements, why is PHC not relevant today

A: *Primary health care system* PHC is a whole-of-society approach to health that aims to ensure the…

Q: 5. A 0.01 M solution of HCI will not hurt your skin, yet a 0.1 M solution of HCI will leave a…

A: Hydrochloric acid is a colorless and odorless solution of hydrogen chloride and water with a…

Q: If a solution has a concentration of 10^-7 OH ions, how many H ions does it have?

A: pH is chemical scale that specifies the acid or basic strength of a solution. Pure water has a pH of…