Why does water have a max density at 4°C?
Q: Given .750L of a 12M HCI solution, what volume of 5.00M HCI could you make?
A: Dilution formula is N1V1 = N2V2. N1 = normality before dilution. V1 = volume of the solution before…
Q: Ionic interactions are weaker in water than they are in an anhydrous medium. Describe how water…
A: Ionic interaction: It is basically the attraction and bonding of two charged molecules, this is…
Q: • the role of water as a medium for the metabolic processes of cells • the ability of water to…
A: Water is universal solvent. I.e. it allows different solute to dissolve in itself. Water provides…
Q: What is the relation of A, T and %T? Under Beer Lambert Law crux the concentration.
A: According to the Beer-Lambert law, absorbance is linearly proportional to the concentration of…
Q: Why does pure water have maximum water potential?
A: The energy required to transfer an infinitesimal quantity of water from a sample to a reference pool…
Q: Indicate whether a solution will have more OH- or H+if the value of the solution is 10
A: The pH of the solution determines the acidity or basicity of the solution by measuring the molar…
Q: what is the calculated change over time from slope? and what condition changed the fastest?
A: For this question change over time can be calculated from the slope. For light the slope is 0.0199…
Q: A pH of 0 would mean an H+ concentration of 1M O True O False
A: Introduction: In the human body, there are different types of fluids present. All these fluids have…
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: Combustion of a fuel sample in a bomb calorimeter increases the temperature of the entire system by…
A: Given: Mass of water (m1 )=1700 gIncrease in temperature(∆T1)=5.10°CMass of water(m2)=2200Increase…
Q: Write out the acid dissociation reaction for hydrochloric acid. Calculate the pH of a solution…
A: The dilution refers to a technique which involves increasing the volume of solvent which is usually…
Q: Complete the table below. Assume that the only reaction is dissolution. Ignore the effects of…
A: Asked : Solution for the given table
Q: can water be used as a biological buffer? why?
A: A buffer is a solution that resists the change in the pH. Usually buffers are made up weak acids and…
Q: Would it be a good idea to make up a pH 4.0 sodium acetate buffer? Why or why not?
A: 1. Buffer Capacity and Effective pH Range:A buffer is most effective when it is within ±1 pH unit of…
Q: 1. Which solutions, if any, produced a positive slope? Was water moving in or out of the cell…
A: Osmosis is movement or diffusion of solvent through a semipermeable membrane. Dialysis tubing allows…
Q: The pl of alkaline phosphatase is 4.5; the pl of the DEAE cellulose is 10.5. We used a buffer of pH…
A: Ion exchange chromatography is a chromatographic separation techniques based on the charge of the…
Q: You are provided with a stock solution of 80 mM ATP. How much of this solution do you need to add to…
A: Concentration of a solution is used to express the amount of dissolved solute present in solvent or…
Q: What must be added to pure water to decrease the OH- concentration? To decrease the H+…
A: When the concentration H+ and OH- ions are equal, the concentration of each is 10-7 M or molar, and…
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: 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: Calculate the percent by mass of a solution that is prepared by dissolving 385 grams of potassium…
A: Weight percentage %= [Weight of solute]/Weight of solvent+ Weight of solute x 100
Q: Why does buffers is significant inside a human body?
A: A buffer system is a solution that resists a change in pH when acids or bases are added to it.…
Q: You want 235mL of a solution that consists of 10% BSA, 2.37mM KCl and 120µM EDTA. You have stock…
A: BSA is a globular proteins which is a well studied proteins and used as standard protein molecule in…
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: What is the pH of a solution that has OH– concentration of 10-9 M?
A: pH is a scale value which is used to determine the acidity or basicity of the solution. The Acidic…
Q: Calculate the more fraction of HC! hydrochloric water containing 30% HCl and water in a folution…
A: Mole fraction is a fraction of the number of moles of a particular component in a mixture divided by…
Q: A 196 g saturated solution has a solubility of 96.0 g/100 g water. If somebody sneakily sip 6 g of…
A: Solubility represents the maximum amount of a substance that dissolves in a given amount of solvent…
Q: How many times greater is the H+ concentration in a soil with a pH of 3.0 versus a pH of 6.0? What…
A: pH is the measure of the alkalinity or the acidity of any medium here that medium is soil. It is…
Q: Put these aqueous solutions in order of decreasing freezing point 0.1 m NaCl 0.1 m MgCl2 0.1 m…
A: For NaCl, i=2 as two ions Na+ and Cl- will be generated in aqueous solution MgCl2 i=3 as three ions…
Q: Dextrose 5% in water solution is an example of hypertonic solution. True False?
A: Hypertonic solution is defined as the solution that contains high concentration of solutes than the…
Q: How do I prepare a 1 M ammonium acetate buffer with a pH of 7. I have solid ammonium acetate, .1 M…
A: Ammonium acetate buffer: Ammonium acetate buffer can be prepared from the reaction of ammonia with…
Q: 12- 10- 8- 6- 4- 2- 0- 20 40 60 80 Volume of NaOH (mL) Hd
A: The titration curve is the graphical representation of pH. The pH is greater than 7 for weak acid…
Q: None
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Q: You have been provided with stock solutions of: stock A: 0.06 M sodium pyrophosphate buffer pH…
A: Buffer preparation fro stock solution: The formula used for buffer preparation from stock solution…
Q: Acetic acid is the principal ingredient in vinegar as shown; that's why it tastes sour. At…
A: An acid dissociation constant (Ka) is the equilibrium constant for a chemical reaction which is…
Q: Are there any H3O+ ions present in pure water at neutral pH (i.e., at pH = 7.0)? If so, how are they…
A: Pure water is also referred as either the distilled water or deionized water. In the distilled…
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: What is the pH of a 0.0025 M solution of HCl?
A: pH is the quantitative measure of the acidity or basicity of aqueous or other liquid solutions. and…
Q: Why does water only have a density of 4?
A:
Why does water have a max density at 4°C?
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