An aqueous solution is 22.0% by mass ethanol, CH3CH2OH, and has a density of 0.966 g/mL. The molality of ethanol in the solution is m.

Q: Of a 10%6 SDS solution in H20. The combined final solution would be 0.5M NaC1 and 1% SDS. If you are…

A: Molality is never equal to molarity. But the difference becomes lesser as the solutions become more…

Q: The density of a substance is 3.596 g/ml and has a weight of 32g. What is the volume?

A: Volume is defined as the total space occupied by a substance. Density can be defined as the…

Q: Calculate the molarity (M) of a 46% (w/v) copper sulfate solution (m.w. = 160.0 g/mol)

A: Molarity is the number of moles of solute per litre of solution.

Q: When 50 grams of KCI is dissolved in 100 grams of water at 50 °C, the solution can be correctly…

A: Introduction: The solid substance that can be dissolved into a liquid is referred to as solute. On…

Q: A beaker with 1.40x102 mL of an acetic acid buffer with a pH of 5.000 is sitting on a benchtop. The…

A:

Q: The normal range of the sodium electrolyte in the body is 134 to 145 mEq/L. The term mEq is…

A: Electrolytes are minerals that can yield ions when dissolved in water. They are essential for…

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: You have a 62% dextrose solution. How many mL will give you 35 g of dextrose?

A: Carbohydrates are molecules that include carbon, hydrogen, and oxygen and have the formula (CH2O)n.…

Q: You are given a solution of 0.117 M NaOH solution.  You need to neutralize 10.00 mL of the NaOH…

A: In order to calculate the molarity of potassium hydrogen phosphate, KHP, we either follow a direct…

Q: 0.47 absorbance/ 4713.6 mol/L = In scientific notation please & 0.57 abosorbance/4713.6 mol/L=

A: Beer-Lambert law states a linear relationship between concentration and absorbance. When…

Q: Find the molarity of a solution that is made by dissolving 76.54g NaCl in enough water to make a…

A: Molarity is used to describe the concentration of a solution. It is the number of moles of solute…

Q: What is the approximate concentration of the solution in mol\kg, if 1 mol of solute particles raises…

A: Boiling point elevation describes the phenomenon that the boiling point of a liquid will be higher…

Q: The concentration of a certain sodium hydroxide solution was determined by using the solution to…

A: Given: KHP is an acid with 1 acidic hydrogen Mass of KHP =0.3520 g Molar mass of KHP =204.22 g/mol…

Q: The melting points of stearic,oleic and linoleic acids are 69C,13C, and -5C, respectivley. Explain…

A: The temperature at which the solid and the liquid forms of a substance exists in equilibrium is…

Q: How many grams of calcium chloride (CaCl2; molecular weight = 111 g mole−1) would you dissolve in…

A: A chemical solution is made up of a solute and solvent such as the salt solution containing salt as…

Q: How much water must be added to 300 mL of an aqueous solution of 0.2 M acetic acid in order to…

A: Given : 0.2 M acetic acid solution , volume 300 ml Let C1 = 0.2 M C2 = concentration of acetic acid…

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: How many grams are in 1 mL for the following solution?   NS _________ this is the whole question

A: NS or Normal saline: It is nothing but a mixture of sodium chloride (NaCl) and water that is…

Q: 50X TBE is 87 mM Tris-borate and 4 mM EDTA at pH 8.3. What is the molarity of each of the chemicals…

A: Given In 50X TBE  87 mM tris-borate  4 mM EDTA pH 8.3

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: 75 g of impure sodium hydroxide is added to 250 cm3 of water. 10 cm3 of this impure solution is…

A: In order to find out the percentage purity of a compound, the molarity of the compound is…

Q: The pH probe/meter uses following equations: Ecell = L + 0.0592 log a1 = L - 0.0592 pH Where L =…

A: Asked : Effect on measured pH value if acid concentration is increased  HCl is an acid

Q: 00 ml total solution, the resulting stren 5..?

A: A pharmaceutical medicine is a chemical substance that causes a biological or physiological effect…

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: Kaochlor, a 10% (m/v) KCl solution, is an oral electrolyte supplement administered for potassium…

A: Kaochlor is potassium chloride oral prescription which is used to treat and prevent low potassium…

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: Which of the following liquid substances exhibit the highest viscosity at 25 ºC? A.…

A: Organic molecules are molecules made of carbon, hydrogen, and oxygen. The organic molecules are…

Q: 2.2 Assuming that the final volume of the solution after the titration is exactly 5 mL, determine…

A: Molarity(M) = [moles of solute(n)]÷[litres of solution (v)] Atomic mass of sulpher= 32+(16×4) =96.…

Q: How many grams of NaCl are required to prepare 100 mL of a solution of 1 M NaCl? (NaCl molecular…

A: Introduction Solution using the formula :   Molarity=moles of soluteVolume of solution(in L)=nVAlso,…

Q: A KCC student titrated 100.00 mL of a NaOH solution using 55.00 mL of a 0.1000M H2SO4 solution. How…

A: The reaction of an acid with a base is called an acid-base reaction. It is also called a…

Q: If 10g of salt was mixed in 1L water. What percent solution will this be.

A: According to the question,Mass of solute = 10 grams = 10gVolume of water = 1L = 1000 mili Liters…

Q: A 35 mL of solution of hydrochloric acid is neutralized by 15 mL of 0.5 M potassium hydroxide. What…

A: Hydrochloric acid is the strongest base that will react with potassium hydroxide to produce water…

Q: How many moles of Nal would be found in 250mL of a 4.5 M solution? Write your answer with three…

A: Molarity (M) is calculated as the number of moles of solute per liter of solution (moles/Liter).

Q: An aqueous solution is 3.50 % by mass hydrochloric acid, HCl, and has a density of 1.02 g/mL. The…

A: Mole fraction is expressed in the terms of moles. It is can be calculated from the formula that is…

Q: A 0.10 M solution of the deadly poison hydrogen cyanide, HCN, has a pH of 5.2. Calculate the [H3O+]…

A: The hydronium ion concentration can be found from the pH  by the formula [H3O+] = 10-pH  or  [H3O+]…

Q: Calculate the molarity (M) of a 65% (w/v) copper sulfate solution (m.w. = 160.0 g/mol).

A: The molarity of a solution is defined as moles of solute in per litre of solution. To calculate…

Q: What is the molarity of the following solution: 47g of KCl dissolved in enough water to give 375 mL…

A: Molarity (M) is the amount of a substance in a certain volume of solution and is also known as the…

Q: The k of water is 1.86 kg °C/mol, approximately 4x the value of k,. If you attempted to freeze your…

A: Freezing point depression is a colligative property and it is noticed in solution when solute…

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: When ionic compound AB (12.0 g) is dissolved in water, it absorbs 2.00 kj of heat. The compound has…

A: Given : AB dissolved in water, it absorbs 2 kJ heat. AB heat of hydration , Delta Hhydration = -670…

Q: A saline solution contains 1.00 g of NaCl (molar mass = 58.55 g/mol) in 75.8 mL of solution.…

A: Given Values: Weight of the NaCl used to prepare saline solution = 1 gram The total volume in which…

Q: By a stoichiometric calculation, determine the pH of a buffer solution prepared by dissolving 25.5 g…

A: The equation that relates the pH of an aqueous solution of an acid to the acid dissociation constant…

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: How many liters of a 7 M NaOH stock solution would you need to make 780 mL of a 153 mM NaOH…

A: Molarity is defined as the number of moles of solute present in a liter of solution.  Molarity =…

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: 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: 3. a) An aqueous solution is 3.50% by mass potassium bromide, KBr, and has a density of 1.02 g/mL.…

A: a)The molality of potassium bromide in the solution is                                  m = (3.50 g…

Q: A solution is made by dissolving 0.641 mol of nonelectrolyte solute in 763 g of benzene. Calculate…

A: Nonelectrolyte solute = 0.641 mol Benzene =763 g