If an unknown solution of cobalt (II) chloride has an absorbance of 0.79, what is its concentration? Include proper units, please How did you determine this using the Beer’s Law plot?

Q: What is the percentage concentration of HNO3 if 25grams of HNO3 is dissolved in enough water to make…

A: When the solute in a solution is solid, then the concentration express is a mass percent…

Q: The master formula for preparation of a ganciclovir solution is: Ganciclovir 500 mg injection vial 1…

A: Each vial contains 500 mg of ganciclovir. After 10 mL additions each of the vials gives 50 mg.

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: Assuming equal concentrations of conjugate base and acid, which one of the following mixtures is…

A: Buffers are the solutions that resist the change in pH after the addition of a small amount of acid…

Q: How many grams is one mole of potassium chloride KCI?

A: Moles : unit of concentration  Mole concept is used to convert mass and number of particles. 1 mole…

Q: What are the pH values for the following solutions? (a) 0.1 MHCl (b) 0.1 M NaOH (c) 0.05 M HCl (d)…

A: pH is the scale used to specify the acidity or basicity of an aqueous solution. It is the negative…

Q: Determine the pH for the following solutions.  {H3O+}=2.4x10^-2 M

A: p in pH denotes negative of the logarithm(-log). So pH is negative logarithm of molarity of H pH…

Q: Ammonia-containing window cleaners are considered pH-neutral substances true or false?

A: As chemicals are dissolved in water, the pH level of the mixture is either acidic or basic. pH level…

Q: If the pH of a voledronic acid solution is 5.8, and the voledronate concentration is 9 mM, what is…

A: Henderson Hasselbalch equation can be used to determine the concentration of a weak acid in an…

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: our patient drank the following liquids for breakfast;220 ml of orange juice,180 ml of milk and 150…

A: Nutrition is a process in which an organism uses food to support its life as food provides energy…

Q: . Adding as little as 0.1 mL of concentrated HCl to a liter of H20 shifts the pH from 7.0 to 3.0.…

A: Acetic acid and sodium acetate is an example of the acid - base buffer, in order to understand how…

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: Arrange the following compounds in the increasing order of their boiling points :CH3CHO, CH3CH2OH,…

A: The boiling point (bp) is dependent on the intermolecular (IMF) forces present in the compound. The…

Q: Convert the following pH values in both [H+] and [OH-] values. (6 points) 1. pH  =  3.95…

A: According to the definition of pH, pH = -log [H+]. According to the definition of pOH, pOH = -log…

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: How many mL of 0.254 M NaOH are needed to fully react with 37.50 mL of 0.358 M H2SO4?

A: Concentration of the NaOH = 0.254 M Conc. of H2SO4 solution = 0.358 M or conc. of [H+]=2×0.358 M…

Q: What is the pH of a 6.7 × 10⁻⁶ M HBr solution?

A: Hydrobromic (HBr) acid is considered a strong acid, which means it gets completely dissolved into an…

Q: If your initial absorbance from undiluted crude dialysate is 4.50, determine the fold dilution…

A: Since you have posted multiple questions, we will answer the first one for you. If you want a…

Q: Make the following prescription isotonic with lacrimal fluid: 0.06 g 0.30 g Ephedrine sulfate (E =…

A: A drug, often known as a medicine, is a chemical compound that has a biological effect on the human…

Q: Bacteria that have a composition of CSH702N. Determine the BOD for 30mg/L, following the following…

A: Microbes, which are tiny and nearly invisible, have had a huge influence on society since the…

Q: A patient is prescribed 15mmol of potassium chloride injection. The ampoule contains 20mmol in 10ml.…

A: Given data    A 10 ml ampule contains = 20 mmol

Q: Consider the following acids and their ionization constant, determine which conjugate base is HCOOH…

A: An acidic substance is a substance that can gives H+ions. They are corrosive and sour in nature. On…

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

A:

Q: What is the pH of a 5.9 × 10⁻⁶ M HBr solution?

A: Hydrobromic acid, HBr is  an extremely strong acid, one that ionizes completely ionizes completely…

Q: Describe the preparation of the following solutions include all mathematic calculations and…

A: Solution is a homogeneous mixture of solute and solvent. Concentration of solution is the amount of…

Q: How would you classify a patient with the following laboratory values? Cr 0.9 mg/dl, BUN 51 mg/dl.,…

A: In azotemia, BUN, creatinine in blood and other secondary waste products are increased in body.…

Q: Make a standard curve by using the values given in the table and determine the concentration of…

A: Bovine serum albumin or BSA is used for standard curve preparation because of its stability. The…

Q: It takes 175ml of 0.75 M H2SO4   to completely neutralize 285 ml of NaOH.  What is the concentration…

A: Neutralization is a chemical reaction in which acid and a base react quantitatively with each other.

Q: A vial containing 200 mg hydrocortisone sodium succinate powder for injection is to be reconstituted…

A: When a solid is dissolved in a liquid, the solid displaces some of the liquid and the volume of the…

Q: What is the total anion concentration (in mEq/L) of a solution that contains 5.0 mEq/L Na+ , 12.0…

A: Introduction: The ionic concentration is the mole ratio between the dissolved substance and the…

Q: How many moles of HCl are there in 75.0 mL of 0.160 M HCl?

A: Molarity can be stated as the soluble moles of solute, which is dissolved per liter of solution.

Q: If there is an increase in the hydrogen ion concentration from 38 nmol.l-1 to 82 nmol.l-1, what does…

A: Acids and Bases:Acids: These are solutions that contain many hydrogen ions and it is represented as…

Q: what is the milliequivalent weight of sodium lauryl sulfate

A: Sodium lauryl sulfate (SLS), or sodium dodecyl sulfate, is an anionic surfactant. It is commonly…

Q: Write the equation for the dissociation (separation) of water and label the hydrogen & hydroxide…

A: When water dissociates, one of the hydrogen nuclei leaves its electron behind with the oxygen atom…

Q: Three buffers are made by combining a 1M solution of acetic acid and a 1M solution of sodium acetate…

A: Given Values: Ka of acetic acid = 1.7×10-5 The concentration of acetic acid stock solution = 1 M The…

Q: What is the pH of an aqueous solution with {H3O+} = 6x10-12

A: pH is logarithm of the reciprocal of the H+  or H3O+ ion concentration in a solution that is…

Q: What is the pH of the following buffer mixtures?                                            (a) 100…

A: Given values: (a) Volume of acetic acid = 100 ml Concentration of acetic acid = 1 M Volume of sodium…

Q: What is the pH of a buffer solution made by dissolving 0.10 mol of formic acid, HCOOH, and 0.10 mol…

A: Since a weak acid dissociates partially in an aqueous solution, the magnitude of dissociation is…

Q: If skin cleaning solution is to be diluted 1 teaspoon to 64 ounces of water, how much water would…

A: GivenOne teaspoon of skin cleaning solution is diluted to 64 ounces of water.To findWater needed to…

Q: The pOH of a basic solution is 3.75. What is [H⁺]?

A: pH= 14-pOH =>pH= 14-3.75= 10.25 The [H+] ion concentration is inversely proportional to its pH.…

Q: Approximately how many fluid ounces of sterile water are needed to compound this solution?

A: It has been mentioned that the sterile water needed to prepare this solution is 100 ml. The question…

Q: If a more concentrated initial solution bicarbonate was used in beaker C, would it require more or…

A: In a neutralization reaction, number of moles acid and bases are always equal at neutralization…

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: If the dehydration reaction of an alcohol is successful, what changes would be seen in the IR…

A: Biochemistry is a branch of biology that deals with the study of chemical processes within living…