in a solution, the solvent is:  A) always a gas  B) always water C) the substance that is dissovled  D) the substance in the Greatest amount

Q: As pH decreases, a solution becomes more acidic.

A: The estimation of the concentration of “hydrogen ions” in the solution is known as the potential of…

Q: What is the purpose for ground substance?

A: Ground substance is also called matrix. It is an intercellular material in which the cells and…

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

A:

Q: Define concentration

A: The term concentration has different meanings in different context. Here, the biological or…

Q: What happens when you add a strong base to the solution with a buffer in it?

A: Chemical equilibrium is a state in which change in concentration of reactants and products is…

Q: Which of the following is the reason why water freezes?

A: The correct answer is option C. Its temperature is decreased.

Q: Identify HCl. strong electrolyte, weak acid nonelectrolyte weak electrolyte, weak acid weak…

A: Introduction: Those molecules that convey an electric charge when dissolved in liquid are…

Q: What is insensible water?

A: Water is one of the most important compound needed for the survival of life on earth.

Q: What happened when a potato strip placed in distilled water?

A: Osmosis is the movement of of water from area of high concentration to area of low concentration…

Q: Define condensation,

A: Organic molecules like carbohydrates, protein lipids are formed by the process of the condensation…

Q: Differentiate between alkaline solution and acidic solution?

A: Answer- Every solution is made up of solvent and solute. The pH of the solution varies due to the…

Q: What are non-ionic detergents?

A: Detergents are cleansing agents and commonly made from synthetic resources such as petroleum…

Q: Why is there a need to filter the alkaline solution after adding the Barium chloride solution?

A: In an aqueous solution, barium chloride acts as a simple salt.  However when dissolved in water, it…

Q: Define buffer.

A: An aqueous solution that comprises of a weak acid and its conjugate base's mixture or a weak base…

Q: 1,500,000 units of an antibiotic if the elixir contains three million units per fluid ounce?

A: Elixir An elixir is sweetened alcoholic solution of alcohol containing a medicinal drug with syrup…

Q: A can of cola consists mostly of sugar dissolved in water, with some carbon dioxide gas that makes…

A: Answer - Cola consists mostly of sugar dissolved in water, with some carbon dioxide gas that makes…

Q: What is condensation?

A: Answer: Introduction: Condensation occurs in two ways first is the air is chilled to its dew point…

Q: A dehydration reaction (or condensation reaction) is the process in which _____.

A: Dehydration is a type of a chemical reaction that takes place generally during anabolic reactions.…

Q: In your own words, what is a buffer solution and how does it work? *

A: The pH scale is used to detect whether an aqueous solution is acidic or basic. Acidic solutions have…

Q: Which of the following is not a deprotonated substance: a) KOH b) LiOH c) HA d) B

A: Protonation is the addition of proton and deprotonation means the removal of the proton.

Q: In not more than 10 sentences, discuss briefly why is water called the universal solvent?

A: Water is an inorganic solvent with molecular formula H2O, made up of two hydrogen atoms and one…

Q: Why are proteins and amino acids considered to be natural buffers?

A: Buffer is a solution that resists the pH change when an acid or base is added to it. pH is measured…

Q: How should you prepare your running buffer?

A: SDS-PAGE is method of separation of protein based on its size. Running buffer of the SDS-PAGE…

Q: H,0 Pure water Positive pressure Negative pressure H,0 H20 H,0 Solute A В C

A: Water potential: it is the potential energy of water per unit volume in comparison to pure water…

Q: How do buffers work?

A: Buffers are the solutions which resist the change in pH even after the addition of small amount of…

Q: Which of the following solutions is the most acidic? A. soda drink, pH 2.5 B. tears, pH 7.5 C. rain,…

A: The pH scale measures how acidic an object is. The scale has values ranging from zero (the most…

Q: What is the pH of the solution?

A: pH is the negative logarithm of the concentration of hydrogen ion (H+ )  in a liquid.it is used to…

Q: Why do we want to know the pH?

A: pH is defined as the quantitative measure of the acidity or basicity of aqueous or other liquid…

Q: Define solution, solvent, and solute.

A: A solution is made up of two components, namely solute and solvent. Any solute and solvent will form…

Q: What is the difference between an antiseptic and a disinfectant? Can the same chemical be used for…

A: Antiseptic Disinfectant 1.       These can slow down the growth as well as can kill the…

Q: Which one of the following is universal solvent? Select one: Ethanol Acid Water Methanol

A: A solvent is a substance that has the ability to dissolve solutes. The mixture of solvent and solute…

Q: What happens to pH of buffer solutions when small amounts of acid and base is added?

A: A buffer is a solution containing a strong acid and its conjugate base or a weak bases and its…

Q: From your data in Table 8.2 choose the correct pH for household chemical listed here. pH 6 purple pH…

A: The pH is considered as the scale, which is used to specify the basicity as well as the acidity of…

Q: Which of the following are solutions?(a) Italian salad dressing(b) Rubbing alcohol(c) Algae in pond…

A: The term mixture in chemistry is defined as a material. It is made up of two or more different…

Q: What is the relationship between particle size and the time it takes for the tablet to dissolve?

A: Relation between particle size and time takes for that tablet to dissolve: ? Tablet size increases -…

Q: Why do oil and water mixed together separate into layers?

A: Water is known as the ‘universal solvent as it is capable of dissolving a variety of different…

Q: How do you make 70 ml of a 60% solution??

A: The making of solutions of different concentrations can be achieved with the help of principle…

Q: What is the difference between an antiseptic and a disinfectant?

A: Antiseptic and disinfectants are used to kill germs, bacterias which attack from outer environment.…

Q: What is the difference between a tincture and an aqueous solution?

A: Given: Explain the difference between a tincture and an aqueous solution

Q: What is the role of indicator in determining if the substance is acid or base? (Note that the…

A: pH indicators are compounds which are natural dye. Those indicate if the solution is acidic or basic…

Q: What do you mean by isotonic solution?

A: Tonicity is a measure of the effective osmotic pressure gradient. The water potential of two…

Q: What concentration of ethanol is considered optimum for disinfectant? Why not 100%?

A: Disinfectant refers to the chemical agents that destroy or inactivate microorganisms on an inert…

Q: Materials that allow flow of water are_______

A: Running fluid moves innately in a gravity-driven direction all along slope and finds its own way.…